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AEROSIL for Adhesives and Sealants

VIEWS: 275 PAGES: 24

									              AEROSIL® for
              Adhesives and Sealants

Invented to improve®
AEROSIL® fumed silica
improves the rheological
and mechanical
properties of adhesives
used in the automotive

                                                More than just a powder:                      Dr. Harry Kloepfer, Evonik chemist
                                                The service components of AEROSIL®            and inventor of AEROSIL® fumed silica
                                                fumed silica’s “value-added product

more than just a powder
Evonik Industries developed AEROSIL®            improvement of the products and their
fumed silica more than 60 years ago, and        application. Competent and dedicated
has dominated the world’s development           laboratories work together with the
and production of fumed silica ever since.      customers to solve problems regarding
Many things as we know them in our              application and handling techniques.
daily lives would be unthinkable without        Efficient logistics guarantee deliveries on
AEROSIL® fumed silica. For example,             time. Well-designed packaging solves
AEROSIL® fumed silica is found in               technical handling problems before they
earthquake-proof building foundations, in       can occur. Technical support and
silicone sealing compounds for bath tubs,       customer care are available worldwide.
in the plastic walls of yachts, in insulating   Our policy regarding the long-term
materials for ceramic stove tops, and in        availability of AEROSIL® products offers
paints and coatings. AEROSIL® fumed             planning security and prevents unexpected
silica has become indispensable, not            investment costs for alternative solutions.
just as a product in itself, but because        In addition, our worldwide presence helps
the highly-specialized, environmentally-        us to combine our expertise to form an
friendly technologies enabled by                international network.
AEROSIL® products have become firmly
rooted in numerous industries. In addition      In this way, we work hand in hand
to the actual AEROSIL® products, we             with our customers towards providing
offer real solutions for many technical         individual solutions for their systems,
applications, with unbeatable advantages.       to meet with their high standards, thus
Our specialist teams in Research and            making their products even more
Development take care of a continuous           successful.

Manufacturing rotor blades for wind turbines
(Nordex AG, Norderstedt/Germany)

Bonding with the customer to find
solutions that stand the test of time

History of technical achievement               The use of new processes, such as weld      Widest Product Range
Adhesives and sealants are employed            bonding, which combines the individual      Numerous systems can benefit from the
in many different industries and are           advantages of gluing and spot welding,      technical advantages and improvements
increasingly finding new applications,         makes it possible to improve the            that may be achieved with Evonik’s large
especially in the automotive industry.         mechanical strength of the automobile       selection of AEROSIL® grades, which
Thanks to the development of special           body (chassis), especially for improving    have been specially developed for the
hydrophobic AEROSIL® fumed silica,             the crash safety and sound dampening.       adhesives and sealants industry. These
it has been possible to produce structural     Furthermore, structural adhesives have      special AEROSIL® grades not only
adhesives that belong to the future            made it possible to construct lightweight   improve the rheological and mechanical
technologies in automobile construction.       design components, such as bonded roof      properties, but also act as anti-settling
Modern structural adhesives enable the         modules.                                    agents, and improve the storage stability
joining of various materials, such as steel,                                               and processability of adhesives and
aluminum, magnesium, and plastics.                                                         sealants.

AEROSIL® milestones for the adhesives and sealants industry

to the market    AEROSIL® grades / new products                     Applications

1963             AEROSIL® R 972 – Development of the                Adhesives and sealants based on silicone,
                 first hydrophobic fumed silica in the world        polyurethane, polysulfide

1986             AEROSIL® R 202, AEROSIL® R 805,                    Adhesives and sealants based on epoxy,
                 AEROSIL® R 812/812 S                               polyurethane, vinylester resin

1995             AEROSIL® R 104, AEROSIL® R 106,                  Adhesives and sealants based on
                 AEROSIL® R 816 – Introduction of a partly        silicone, water-based adhesive and
                 hydrophobic grade of AEROSIL® fumed silica,      sealant systems
                 Introduction of the new VV compaction technology
                 for fumed silica

1998             AEROSIL® R 8200 – Introduction of a new            Adhesives and sealants based on silicone,
                 structure-modified type of AEROSIL® fumed silica   epoxy, polyurethane

2001             AEROSIL® R 7200, AEROSIL® R 711                    Adhesives and sealants based on
                 Introduction of AEROSIL® grades rendered           acrylate, polyester, vinylester resin
                 hydrophobic with methacrylate functional silanes

2005             AEROSIL® R 9200 – Introduction of a new            Adhesives and sealants based on silicone,
                 structure-modified type of AEROSIL® fumed silica   epoxy, polyurethane

Uses for silicone sealants in bathrooms           Application of a silicone sealant
(e.g. leak-proofing shower stalls)

                                          AEROSIL® – Advantages
                                          for Silicone Adhesives and Sealants
                                          When it comes to reinforcement and transparency, AEROSIL® is essential

                                                  One of the most important applications          for the static bonding of glass to a metal
                                                  of AEROSIL® fumed silica in the adhesives       construction. These adhesives generally
                                                  and sealants industry is its use as an active   consist of one- or two-component
                                                  reinforcing filler to improve the mechanical    silicone materials. AEROSIL® fumed silica
                                                  properties of silicone sealants. Without        improves both the mechanical and
                                                  AEROSIL® fumed silica, the mechanical           rheological properties of these materials
                                                  properties of silicone sealants would be        in this relatively new application.
                                                  inadequate, making it impossible to
                                                  perform as a watertight, durable feal           The AEROSIL® fumed silica grade with
                                                  between similar and dissimilar materials.       the best properties for this important
                                                  AEROSIL® fumed silica is also used              application is dependent upon the
                                                  successfully in transparent silicone sealants   demands made by the manufacturer on
                                                  for waterproofing tub surrounds and             the formulation of the silicone sealant.
                                                  shower stalls.                                  AEROSIL® 150 and AEROSIL® R 972 are
                                                                                                  AEROSIL® grades most frequently used in
                                                  Glass has become a fashionable building         the formulation and production of silicone
                                                  material over the past few years. All-glass     sealants. AEROSIL® 150 demonstrates
                                                  constructions do not merely fulfill modern      very good reinforcing properties in
                                                  anesthetic desires; they also improve the       silicone sealants, and also improves their
                                                  acoustic properties of buildings, offer         processability. The hydrophobic grade
                                                  superior protection from weathering,            AEROSIL® R 972 offers further advantages
                                                  and guarantee an excellent interior living      over the hydrophilic grade AEROSIL® 150;
                                                  environment. Structural glazing is used         for example, an improved storage stability

Testing the mechanical properties of      Structural glazing adhesives
a silicone sealant compound               for all-glass building facades

        and processability of the non-crosslinked
        silicone sealant. Due to their fine particle
        size, AEROSIL® R 812 S or AEROSIL® R 106
        are especially well suited for application
        in transparent silicone sealants, which are
        used, for instance, to seal shower stalls.
        Structural glazing adhesives based on
        silicone materials are extensively tested
        with regard to product quality, mechanical
        strength, aging, and compatibility. The
        hydrophobic grades AEROSIL® R 972,
        AEROSIL® R 812, and AEROSIL® R 8200
        are suited for the fine tuning of the
        mechanical and rheological properties
        of silicone materials. They are also
        superior to the hydrophilic products in
        their improved resistance to aging, thanks
        to their extremely hydrophobic nature.
        High filler loading with low-thickening
        can be obtained using AEROSIL® R 8200
        and AEROSIL® R 9200 which makes it
        possible to formulate structural glazing
        with excellent mechanical properties.

AEROSIL® improves structural adhesives for construction of automobile bodies

AEROSIL® – Advantages for Adhesives
and Sealants in the Automotive Industry
Using AEROSIL® to optimize your production processes creates strong bonds

Bonding is the technology of the future in           Polyurethane structural adhesives are         Another important application for
the modern automotive industry. There                used to bond automobile body parts made       adhesives in the automotive industry is
are tailor-made adhesive systems for nearly          of fiber glass reinforced polyester resins.   the window glass segment for the direct
every application in the construction of             The automobile body parts are attached        sealing of windshields and side windows.
vehicles. The use of structural adhesives            by a structual adhesive to a steel frame,     Windshield sealants were introduced to
for building automobile bodies has                   which bears the main weight of the            the automotive industry in the 1970s, and
steadily increased since the 1990s, and              chassis and the engine. The properties of     remain standard practice today.
offers the following advantages over                 structural adhesives and the demands          Polyurethane adhesives are used for this
classic bonding techniques, such as spot             placed on them are extremely diverse          application. The requirements for
welding:                                             and include:                                  windshield sealants are:

•    onding of different materials, such 
   B                                                 •   mproved rigidity and strength 
                                                        I                                             D
                                                                                                   •    irect adhesion, adhesion on glass, 
   as steel, aluminum, magnesium, and                   of the automobile body                        plastics, and coated substrates
   plastics                                          •   mproved crash properties 
                                                        I                                             F
                                                                                                   •    ixing of components with adhesives 
•    or lightweight design components, 
   F                                                    of components                                 during assembly
   such as bonded roof modules                       •    aterproofing of the raw 
                                                        W                                             I
                                                                                                   •   mproved structural integrity
•  Improved mechanical strength                         automobile body                               I
                                                                                                   •   ncreased rigidity of the automobile 
•  No thermal influence on the materials             •    orrosion resistance
                                                        C                                             body
•    ow-stress composite structures 
   L                                                 •    esistance to washing out by 
                                                        R                                             L
                                                                                                   •    ow electrical conductivity
   without load peaks                                   means of rheology or pre-curing
•    seful for difficult-to-reach                       C
                                                     •    ompatibility with immersion coatings
   components                                           A
                                                     •    dhesion to oily substrates, ability 
                                                        to be thoroughly welded
Meanwhile, many automobile bodies are                   G
                                                     •    ood viscosity stability and 
bonded by weld bonding with an epoxy                    sag resistance
structural adhesive. Spot welding is                    P
                                                     •    rocess stability, string resistance
used additionally to fix the part until the             R
                                                     •    esistance to aging, good storage 
adhesive has cured completely.                          stability

Application of an adhesive
(Dow Europe GmbH/Switzerland)

The hydrophobic grade AEROSIL® R 202         Diagram of thixotropy
is a very effective thixotropic and anti-
settling agent for structural adhesives
based on epoxy resins and polyurethane.
AEROSIL® R 202 and AEROSIL® R 805
provide epoxy resin-based structural
adhesives with sag and process stability,
combined with very good storage
stability. The hydrophobic grades
AEROSIL® R 972 and AEROSIL® R 202
have been used successfully for many
years as thixotropic and reinforcing agent

in windshield sealants based on
polyurethane.                                            static period   shearing   static period

Both hydrophobic AEROSIL® fumed silica                   time
grades can be used to achieve highly
viscous, thixotropic, storable adhesive
beads, which remain ready for application
with automatic glue guns onto the
automobile body components. For low
conductivity window glass adhesives, the
AEROSIL® fumed silica concentration is
slightly increased and the carbon black
concentration is reduced.

                                                      AEROSIL® fumed silica are used in adhesives and
                                                      sealants to bond and seal cockpits, fuel tanks, and
                                                      pressurized cabins.

AEROSIL® – Advantages for Adhesives
and Sealants in the Aircraft Industry
With AEROSIL® you’ll always win by a nose – even under maximum
temperature fluctuation

        A large number of different adhesive and      The key parameters for this kind of
        sealant systems have gained significance      sealant are elasticity and high strength.
        in the aircraft industry. Examples of some    Potting compounds and adhesives are
        of the important applications requiring       additionally used to encapsulate and
        adhesives and sealants are the bonding        protect electronic components. Systems
        and sealing of cockpits, fuel tanks,          based on polyurethanes, silicones, or
        pressurized cabins, and the embedding of      epoxy resins are used for these applications.
        electronic components. The properties         Finally, adhesives and sealants are also
        required for these adhesive and sealant       used to prevent corrosion. Corrosion
        systems are often determined by using         occurs when airplanes come into contact
        standardized test methods, some of which      with salt water. Adhesives based on
        come from the military field. The industry    cyanacrylate, methacrylate, or epoxy resin
        utilizes a wide selection of testing          are used for this application. AEROSIL®
        standards, such as ASTM or UL.                products can be used to achieve a wide
        Adhesives and sealants based on epoxy         range of effects in these systems;
        resins, methacrylates, silicones, and         AEROSIL® fumed silica acts as a
        polysulfides are used to seal cockpits and    thixotropic agent, reinforcing agent, and
        window panes. The bond must be able to        also as an anti-settling agent. A mere 1%
        withstand high pressure differences and       of AEROSIL® fumed silica, for instance,
        temperature changes, as well as displaying    can reduce the settling behavior of fillers
        high UV resistance. Sealants are used to      in potting compounds used to encapsulate
        seal joints or entire inside walls of fuel    electronic devices.
        tanks. The sealants used for fuel tanks are
        based on polysulfide polymers, epoxy          The overview on page 23 of this brochure
        resins, or silicones. Sealants are also       recommends the AEROSIL® product best
        required in the aircraft industry to seal     suited for most adhesive and sealant
        cabins, which have to withstand high          applications.

Wind turbines
(Nordex AG, Norderstedt/Germany)

 Cross-section of a fiber-reinforced rotor blade

                                                                                                        tail edge bonding

  nose bonding

  inner-support bonding

AEROSIL® – Advantages in Structural Adhesives
AEROSIL® provides modern wind power stations with an edge

An important application for AEROSIL®           The hydrophobic AEROSIL® R 202 grade          AEROSIL® R 202. The fast-curing
fumed silica in the adhesives industry is       is a very effective thixotropic agent for     methacrylate adhesives are especially
its use as a thixotropic agent in special       use in polar epoxy resin, polyurethane,       suitable for carrying out small repairs.
adhesives for the construction of wind          and vinylester resin-based adhesives.         AEROSIL® 200 and AEROSIL® 300 are
turbines.                                       Furthermore, very good storage stability      the primarily used thixotropic agents for
                                                can be achieved with the latter adhesives     methacrylate-based adhesives.
Wind turbines must be able to provide           when AEROSIL® R 202 is used; the              AEROSIL® R 711 and AEROSIL® R 7200
twenty years of service without requiring       viscosity builds up again even after high     are two new AEROSIL® grades that have
large-scale repairs. High demands are           shear forces are applied, ensuring good       methacrylate functional groups attached
placed on the durability behavior of the        stability of the adhesive. The more           to their surface. AEROSIL® R 711 has a
rotor blades, especially in large units with    compacted AEROSIL® R 202 VV 90                thixotropic effect, while AEROSIL® R 7200
power outputs of 2.5 and 5 MW. The              grade offers the following advantages         demonstrates a low thickening effect in
quality of a rotor blade is determined by       over the standard AEROSIL® R 202: less        adhesive systems, thus enabling higher
the reliability of its many adhesive bonds.     development of dust during processing,        levels of loading.
The use of systems with a high degree           shorter incorporation times, better
of thixotropy is necessary to prevent           wetting into the adhesive, and also a         The use of AEROSIL® R 7200, in
the sagging of the adhesive on sloping          higher bulk density. This offers advantages   particular, makes it possible to improve
or vertical walls during processing. The        when planning the installation and also       the mechanical properties and the age
special hydrophobic AEROSIL® grades             with regard to logistics. Due to the high     resistance of radical curing adhesives or
are particulary well suited for this            shear forces that prevail during the          gel coats. This is an advantage for units
purpose. Currently, there are adhesives         dispersion of AEROSIL® fumed silica in        built close to the coast or at sea, since the
based on epoxy resin, polyurethane,             the adhesive, the levels of viscosity         environmental conditions there are
vinylester/polyester resin, and                 attainable with AEROSIL® R 202 VV 90          harsher.
methacrylates available for this application.   are almost the same as those of

Printed circuit board with electronic components

 SMD Adhesives

                                                                    SMD component


                     wired component

SMD adhesives attach the electronic device to the circuit board before
the completed circuit boards are turned upside down for immersion in the soldering bath

AEROSIL® – Advantages in Adhesives
for Electronic Components
AEROSIL® helps the electronics industry in sticky situations

For decades now, the electronics industry                before the completed circuit boards are       C
                                                                                                    •    onstant drop profile and volume
has been the fastest growing and fastest                 flipped for immersion in the soldering        H
                                                                                                    •    igh green strength
changing industry worldwide. Adhesives                   bath. The adhesive is dispensed from a        H
                                                                                                    •    igh cure strength 
are used in the electronics industry to                  cartridge; this requires the adhesive to      R
                                                                                                    •    apid cure rate
adhere electronic components to printed                  have a suitable drop profile. The volume      G
                                                                                                    •    uaranteed rapid application 
circuit boards and to seal electronic                    applied must be sufficient to bridge the      of very small drops
components (e.g. relays). Miniaturization                gap between the circuit board and the         B
                                                                                                    •    ubble-free application, low 
is the main trend in the development of                  SMD components. The diameter of the           moisture adsorption
circuit boards and in manufacturing                      glue spot must remain within the space
technology. The introduction of SMD                      between the solder spots, without          Both epoxy resin and acrylate-based
technology (Surface Mounted Device)                      inadvertently wetting the connection       adhesives are available for use as SMD
in the 1980s, replacing the then standard                spots with glue. The drop profile of the   adhesives. The hydrophobic grades
wired elements, made it possible to                      adhesive is defined by the thixotropy,     AEROSIL® R 972, AEROSIL® R 202, and
achieve further miniaturization of the                   the viscosity in a state of resting, and   AEROSIL® R 805 are very effective
components and a higher degree of                        the surface tension. Furthermore, the      thixotropic agents for these adhesives.
rationalization during fabrication. The                  adhesive has to fulfill additional high    SMD adhesives can be adjusted using
SMD process involves the direct soldering                requirements during application:           AEROSIL® R 972, AEROSIL® R 202, and
of the device contacts onto solder spots                                                            AEROSIL® R 805, to fulfill the demands
located on the surface of the circuit board.                T
                                                         •    hixotropic flow behavior,             for thixotropic flow behavior, high 
SMD adhesives play an important role in                     high viscosity in resting state         viscosity in resting state, high drop
the mounting of circuit boards with                         S
                                                         •    ag-resistance during the              profile, and anti-sagging during the curing
subsequent soldering. They attach the                       curing process                          process.
electronic devices to the circuit board                     H
                                                         •    igh drop profile, no strings

Anchoring of signs and lighting fixtures
in tunnel constructions with chemical anchors

 How a chemical plug functions:

       drill hole                             glass
       screen case                            reaction
       containing                             steel pin
       reaction                               or bolt
       resin                                                                         nut

AEROSIL® – Advantages for Chemical Bonding
AEROSIL® provides the construction industry with the strength to hang in there

Chemical plugs are composite anchor           second smaller glass cylinder containing         precise drill hole cannot be made, or if
cartridges which have the following           the hardener. In order to anchor steel pins      an irregular drill hole already exists.
advantages over mechanical plugs and          used in the construction of bridges, the
dowels:                                       glass cartridge is placed into the drill hole    Vinylester resins, epoxy resins, or
                                              inside a screen case, and is then broken         polyester resins make up these synthetic
•    daptation to uneven drill holes
   A                                          open with a drill or hammer. The steel pin       resins. The hydrophobic grade
•    igh break resistance due to elasticity
   H                                          is fixed directly into the reaction resin        AEROSIL® R 202 is especially suitable for
•    imple handling at building site
   S                                          which is now beginning to cure. Improved         providing vinyl resins and epoxy resins
•    orrosion inhibiting effect
   C                                          bonding strength is achieved between             with an effective thixotropy, whereas the
                                              the concrete, the adhesive, and the steel        hydrophilic AEROSIL® 200 is used in
Chemical plugs are available for use in       rod. Due to its elasticity, the system is less   polyester resin applications.
concrete applications, hollow block and       likely to crack than classical plugs,
aerated concrete constructions. They are      especially as a result of expansion within      During the exothermal curing, the high
used, for example, in the construction of     the concrete.                                   degree of thixotropy and high yield value
tunnels to attach signs, lighting fixtures,                                                   of the reaction resins prevent sagging
or ventilators. One- and two-component        Finally, there are also two-component           on sloping and vertical surfaces during
systems are commercially available for        systems available as flexible foil cartridges,  application. Both AEROSIL® grades
different applications. A standard one-       so-called “side-by-side” cartridges, which function additionally as anti-settling
component system consists of a glass          require the resin and hardener to be mixed agent and prevent the settling of fillers
cartridge containing a special synthetic      with a static mixer prior to application.       in the cartridges during storage.
resin, fillers, thixotropic agents, and a     These systems are advantageous if a

Typical bag packaging                                               AEROSIL® fumed silica in the new bulk product container
of Evonik AEROSIL® fumed silica                                     (FIBC: Flexible Intermediate Bulk Container)

Technical Handling Service of AEROSIL®
enables compact solutions
Working with AEROSIL®

The handling of AEROSIL® fumed silica is receiving increased        Handling
attention at a time when automation, rationalization, industrial    The term handling is used to describe the
hygiene for the protection of employees, and environmental          techniques required to move AEROSIL®
regulations are all becoming more and more important. Parallel      products within a customer’s plant. The
to these developments, the Business Line Aerosil has been           following topics should be regarded as
expanding its activities in this field for more than ten years.     the main priorities:

The planning of dust-free, automatic plants for AEROSIL® fumed         E
                                                                    •    mptying of packaging units
silica requires a fundamental knowledge of the products, together      S
                                                                    •    ilo storage
with experience in process engineering when handling fumed             I
                                                                    •   nternal conveying 
oxides. We combine our experience in this field with the specific      D
                                                                    •    osage 
know-how of our customers and the know-how of the                      I
                                                                    •   ntroduction of the material into the 
manufacturers of conveying, dosage, and production units.              processing machinery
This enables us to develop joint concepts which facilitate the
handling of AEROSIL® products at our customers’ plants.             In addition to these points, the term
                                                                    handling also includes topics essential to
                                                                    putting the above steps into practice.
                                                                    More detailed information about the
                                                                    offering of this service is available from
                                                                    the customer service agent in your area.

Dust-free, automatic filling unit

Packaging                                     Storage Stability
AEROSIL® fumed silica in powder form          AEROSIL® fumed silica is chemically inert
is available in three different packaging     to a large extent and shows no chemical
units. The standard packaging is the          changes after long periods of storage,
multi-layer paper bag, with an additional     provided it is stored under suitable
polyethylene liner for certain products.      conditions. Nevertheless, it should be
The weight of the bags range from 10 lb.,     noted that a small number of substances
20 lb. to 10 kg in the US and from 10 to      do react with silicon dioxide. Due to its
20 kg in all other regions, and depends on    high specific surface, volatile substances
the AEROSIL® grade and its set tapped         may be adsorbed on the AEROSIL® fumed
density. Evonik also offers AEROSIL®          silica surface. This adsorption is reversible
fumed silica in a new kind of packaging in    in the case of moisture. The adsorption of
the semi-bulk range – the FIBC (Flexible      moisture is significantly reduced by the
Intermediate Bulk Container). Depending       organic modification of the hydrophobic
on the product and its densification ratio,   AEROSIL® grades.
the weights of the filled FIBC’s also vary.
Large-scale users may also have the           It is possible that prolonged periods of
product delivered by silo truck, which        storage may cause the AEROSIL®
requires a corresponding storage silo         products to become slightly compacted.
at the customer’s location. AEROSIL®          This can lead to a minimal rise in the
dispersions, known as AERODISP®, are          tapped density, which might slightly
delivered in 60 kg cans, 220 kg barrels       affect correlated product properties.
and 1.000 kg IBC’s (Intermediate Bulk

    AEROSIL® fumed silica around the
    world: More than 100 sales offices
    in 95 countries, production sites on
    three continents, and applied
    technology service centers in
    Asia, America, and Europe

The Advantage of a Global Enterprise –
Local Proximity

    Size usually creates distance – but not at   delivery service. With a total of more than
    Evonik. As a leading specialty chemicals     1200 motivated employees and more than
    company Evonik relies on the business        100 service offices in 95 countries, we
    philosophy: ”as decentralized as possible,   also offer our customers the biggest
    as centralized as necessary“.                service network of all suppliers on the
    The decentralized organization at all        market.
    levels and in all divisions of the company
    is tailored to operative units which can     The combination of highest product
    respond to the market quickly, flexibly      quality and a marked focus on service and
    and on a customer-oriented basis. As a       consulting is a major cornerstone of the
    brand operating worldwide, AEROSIL®          AEROSIL® strategy. As a brand that is
    uses production facilities, application-     active worldwide we also want to
    related service centers, research centers,   combine with partners to form a strong,
    and commercial and technical service         international network in which we
    offices in all regions of the world.         concentrate our areas of expertise.

    The mere fact that we produce on             A functioning globality, which our
    3 continents represents a decisive           customers experience on a local level.
    advantage for us and our customers when
    it comes to an effective worldwide           Always close by.

                                   Detailed information
                                   regarding our technical literature
                                   can be obtained from:

                                   Evonik Degussa GmbH
                                   Inorganic Materials
                                   Weißfrauenstr. 9
                                   60287 Frankfurt/Main, Germany

                                   Phone +49 69 218-2613
                                   Fax +49 69 218-62613


     Product overview
     and technical literature

          Technical Bulletin Pigments No. 11           Technical Bulletin Pigments No. 63
          •    asic Characteristics of AEROSIL®
             B                                            S
                                                       •    ynthetic Silicas for Sealants

          Technical Bulletin Pigments No. 27           Industrial Information No. 2123
          •    EROSIL® for Solvent-free Epoxy 
             A                                            A
                                                       •    EROSIL® in Adhesives and Sealants
                                                       Product Overview
          Technical Bulletin Pigments No. 28
          •    andling of Synthetic Silicas and 

          Technical Bulletin Pigments No. 54
          •    EROSIL® for Unsaturated Polyester 
             Resins and Vinylester Resins

AEROSIL® for Adhesives                                               AEROSIL® for Sealants
System                 AEROSIL® Grade     Effect                     System          AEROSIL® Grade       Effect

Epoxy                  AEROSIL® 200       Thixotropy,                1-Component     AEROSIL® 130         Thixotropy,
                       AEROSIL® 380       Thickening,                Silicone        AEROSIL® 150         Thickening,
                       AEROSIL® R 202     Anti-settling,             (RTV-1)         AEROSIL® R 972       Reinforcing, Anti-Sag,
                       AEROSIL® R 805     Anti-Sag                                   AEROSIL® R 974       Improved transparency
                                                                                     AEROSIL® R 106       (R 106, R 812 S),
Polyurethane           AEROSIL® 200       Thixotropy,                                AEROSIL® R 812 S     Self-levelling (R 8200),
                       AEROSIL® R 972     Thickening,                                AEROSIL® R 8200      Improvement of
                       AEROSIL® R 974     Anti-settling,                             AEROXIDE® TiO2 P25   thermal stability
                       AEROSIL® R 202     Anti-Sag                                                        (AEROXIDE® TiO2 P25)

MS/SMP/SPU             AEROSIL® R 974     Anti-Sag, Thixotropy,      2-Component     AEROSIL® R 9200      Reinforcing, Anti-Sag,
                       AEROSIL® R 202     Reinforcing,               Silicone        AEROSIL® R 8200      Improvement of
                       AEROSIL® R 812 S   Transparent                (RTV-2)         AEROXIDE® TiO2       thermal stability
                                                                                                          (AEROXIDE® TiO2),
Acrylate/              AEROSIL® 200       Thixotropy,                                                     Self-leveling
Methacrylate           AEROSIL® 300       Thickening,
                       AEROSIL® COK 84    Anti-settling, Anti-Sag,   1-Component     AEROSIL® R 202       Thixotropy,
                       AEROSIL® R 711     improved hardness          Polyurethane    AEROSIL® R 972       Thickening,
                       AEROSIL® R 7200    and scratch resistance                     AEROSIL® R 974       Reinforcing, Anti-Sag
                                          (R 7200)
                                                                     Polyacrylate    AEROSIL® 200         Thixotropy,
Unsaturated            AEROSIL® 200       Thixotropy,                                AEROSIL® R 972       Thickening,
Polyester              AEROSIL® 300       Thickening,                                AEROSIL® R 974       Reinforcing, Anti-Sag
                       AEROSIL® 380       Anti-settling, Anti-Sag,                   AEROSIL® R 805
                       AEROSIL® R 7200    improved hardness
                                          (R 7200)                   Polysulfide     AEROSIL® 200         Thixotropy,
                                                                                     AEROSIL® R 972       Thickening,
Vinylester             AEROSIL® R 202     Thixotropy,                                AEROSIL® R 202       Reinforcing, Anti-Sag
                       AEROSIL® R 812 S   Thickening,
                       AEROSIL® R 7200    Anti-settling, Anti-Sag,   Butyl           AEROSIL® 200         Thixotropy,
                                          improved hardness                          AEROSIL® R 972       Thickening,
                                          (R 7200)                                                        Reinforcing, Anti-Sag

Silicone               AEROSIL® 200       Thixotropy,                MS/SMP/SPU      AEROSIL® R 972       Thixotropy,
                       AEROSIL® R 972     Thickening,                                AEROSIL® R 974       Thickening,
                       AEROSIL® R 812 S   Anti-settling, Anti-Sag,                   AEROSIL® R 8200      Reinforcing, Anti-Sag
                       AEROSIL® R 8200    Reinforcing                                AEROSIL® R 9200

Polychloroprene        AEROSIL® 200       Thixotropy,                PVC-Plastisol   AEROSIL® 200         Thixotropy,
                       VP AdNano® ZnO     Thickening, Prevention                     AEROSIL® 300         Thickening,
                                          of string formation,                       AEROSIL® 380         Anti-Sag
                                          Anti-Sag, Stabilizing

Polyvinyl Chloride     AEROSIL® 200       Thixotropy,
                                          Prevention of string
                                          formation, Anti-Sag

Pressure Sensitive     AEROSIL® 200       Thixotropy,
water-based            AEROSIL® R 972     Thickening, Prevention
                       AERODISP® W 7520   of bleed-through,
                                          Reinforcement, Shear
                                          adhesion, Clarity

Hotmelts (Polyester,   AEROSIL® 200       Anti-Sag, Reinforcing,
Polyamide,             AEROSIL® R 972     Thixotropy, Thickening
Polyurethane)          AEROSIL® R 8200

Polychloroprene,       AEROSIL® 200       Thixotropy,
water-based            AEROXIDE® Alu C    Thickening,
                       VP AdNano® ZnO     Reinforcing, Stabilizing

Ethylene Vinyl       AEROXIDE® Alu C      Thixotropy,
Acetate, water-based                      Thickening,
                                          Reinforcing, Anti-Sag,
                                          Pigment suspension

Polyurethane,          AEROSIL® COK 84    Thixotropy,
water-based            AEROSIL® R 974     Thickening,
                       AEROXIDE® Alu C    Improved water
                                          resistance, Anti-Sag

Acrylate,              AEROSIL® 200       Thixotropy,
water-based            AEROSIL® COK 84    Thickening, Improved
                       AEROSIL® R 974     water resistance, Anti-
                       AERODISP® W 7520   Sag, Shear adhesion,

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                           Latin America                    are based on Evonik’s present knowledge and
                           Evonik Degussa GmbH              experience. However, Evonik assumes no liability for
                           Inorganic Materials              such information or advice, including the extent to
                           Weißfrauenstr. 9                 which such information or advice may relate to third
                           60287 Frankfurt am Main          party intellectual property rights. Evonik reserves the
                           Germany                          right to make any changes to information or advice at
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                                                            IMPLIED, AND SHALL HAVE NO LIABILITY FOR,
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                           Evonik Degussa Corporation       FITNESS FOR A PARTICULAR PURPOSE (EVEN
                           Inorganic Materials              IF EVONIK IS AWARE OF SUCH PURPOSE),
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                           P.O. Box 377                     RESPONSIBLE FOR CONSEQUENTIAL, INDIRECT
                           Parsippany, NJ 07054-0677        OR INCIDENTAL DAMAGES (INCLUDING LOSS
                           USA                              OF PROFITS) OF ANY KIND.
                           Phone +1 888 745-4227            It is the customer’s sole responsibility to arrange
                           Fax +1 732 981-5310              for inspection and testing of all products by
                           e-mail   qualified experts. Reference to trade names used
                                                            by other companies is neither a recommendation
                           Asia-Pacific                     nor an endorsement of the corresponding product,
                           Evonik Degussa (SEA) Pte. Ltd.   and does not imply that similar products could not
                           Inorganic Materials              be used.
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                           Singapore 609927
                           Phone +65 6 890-6031
                           Fax +65 6 890-6872


Evonik Degussa GmbH
Inorganic Materials
Weissfrauenstr. 9
60287 Frankfurt am Main
Phone +49 69 218-2613
Fax +49 69 218-62613

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