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CULMINAL®
for tile cement
Aqualon, a Division of Hercules Incorporated
2
Aqualon, a division of Hercules Incorporated with 2000 employees, is a major
producer of cellulose ethers. In this product segment Aqualon is one of the world’s
leading suppliers and has the widest range of cellulose ethers available.
Aqualon is a truly global company with worldwide production facilities and sales
representations. In Europe Aqualon has three manufacturing sites: in The
Netherlands, Belgium and France. Sales offices are located in Rijswijk,
The Netherlands; Düsseldorf, Germany; Pendlebury, England; Rueil, France;
Bologna, Italy; Tarragona, Spain; Moscow, Russia; Warsaw, Poland and Prague,
Czech Republic. In addition, Aqualon has agents and distributors in many
countries. Invisible to the eye, and yet indispensable, each Aqualon product stands
for performance and functionality.
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CULMINAL® for tile cement
CULMINAL products are widely used to improve the application properties of building
materials based on cement, gypsum and lime. In tile cements they improve water retention,
correction time and open time, and decrease skin formation, slip and sagging.
The straight CULMINAL products are series of methylcellulose mixed ethers (MHEC and
MHPC) with varying viscosity. CULMINAL-C series are modifications in which additives
enhance specific properties as required by special application conditions.
Physically the products are white to off-white powders, that dissolve in cold water.
CULMINAL has a good compatibility with electrolytes like salts, and is stable over a wide
pH range.
We recognize that our products are required to be perfect in every respect,
available at the right time, at the right place and in a perfect condition.
To continuously achieve this, Aqualon declared ‘Total Quality’ one of the highest
priorities throughout the entire organization. In 1994 all Aqualon entities in Europe
received ISO 9001 status, an essential milestone in the divisions pursuit of
achieving business excellence. Quality is no static condition, neither it is some-
thing that springs up by itself.
All Aqualon employees follow regular and intensive training in the use of problem
solving techniques and participate in improvement projects.
Total Quality is a matter of priority at all levels of the company; this is why the
combination of product value and service level offered by Aqualon is of the highest
calibre. For Aqualon quality is a matter of continuous attention.
INFLUENCE OF CULMINAL® ON THE PROPERTIES OF TILE CEMENT
4 100
Figure 1 - Water retention
98
Water retention of tile cement as
a function of the concentration CULMINAL products strongly increase the
96
of the CULMINAL water retention capacity of tile cements.
Waterretention, %
94
They inhibit too fast a loss of water from the
mortar into the substrate and the dry tile.
92 As a consequence sufficient water is kept
available to allow the cement to fully
90 harden and to develop full strength
0 0,1 0,2 0,3 0,4 0,5
properties. Figure 1 shows the retention of
Culminal concentration, % water in a tile cement in relation to the
quantity of cellulose ether added.
Additionally, the improved plasticity of the
mortar facilitates workability and increases
the contact area between the combed
mortar and the tile.
0,5
Figure 2 - Correction time
Correction time of tile cement as 0,45
a function of CULMINAL The correction time is the time during
0,4
concentration. which the position of the tiles in the wet
Culminal addition, %
0,35 mortar layer can be corrected without
significant loss of adhesive strength.
0,3
0,25 Substrates and tiles with very high capillary
action decrease correction time. The high
0,2
0 5 10 15 20 25 water retention capacity of CULMINAL
inhibits such rapid water loss, and thus
Correction time, min
increases correction time, as shown in
figure 2.
There is more to quality than a good product and satisfied customers.
In Aqualon’s view quality is also reflected in our attitude towards the environment.
To minimize environmental impact as much as possible during a product’s life-
cycle, it is Aqualon’s objective to achieve ISO 14001 certification for its three
European production units.
Aqualon focuses on its core activity: producing cellulose ethers in many varieties
and perfecting these to meet current and future requirements of its customers.
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Skin formation Slip and sagging
Skinning is the formation of a skin with Slip and sagging are flow characteristics of a
insufficient adhesion on the wet surface of freshly applied layer of mortar on a vertical
a freshly applied tile cement. This process surface under the weight of a tile, see figure 4.
is caused by evaporation or hardening. Anti-sagging additives in CULMINAL
The time between the application of the special products improve this undesired
mortar layer and the formation of a skin is characteristic of tile cements to such extent,
called the ‘open-time’ of a tile cement. that even heavy, non-porous tiles applied
Additives in the CULMINAL® special types on a vertical surface, hardly slip downward.
retard the skin formation and thus extend As a consequence such modified cellulose
the open time of the tile cement. ethers are very well suitable for tile cements
This allows for a more rational use of it. that do not contain fibers.
Figure 4 -
Tile cements with bad and good sagresistance.
Tensile strength Testmethod: DIN 18 156.
The addition of CULMINAL in the
recommended concentrations improves the
strength development of cement based tile
adhesives.
Figure 3 -
Tile cements with slow and fast skin formation.
Testmethod: DIN 18 156.
Aqualon polymers play a minor though crucial role in hundreds of products, for
example cosmetics, pharmaceuticals, paper, cement and gypsum products, food-
stuffs, emulsion polymers and paints. Aqualon is an open company that seeks
communication with its customers. Direct communication leads to better products
and services.
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Addition level
In function of the requirements on the tile
cements the recommended concentration
of CULMINAL® on dry matter is between
0,3 and 0,5 %.
Example
Starting formulation of a tile cement for
professional use.
Portland cement 35,00 Pbw *
Lime 2,00 Pbw
Silica sand 0,1 - 0,4 mm 61,05 Pbw
Polymer powder 1,50 Pbw
CULMINAL C8114 0,45 Pbw
Skin formation, min. 30
Contact area, % 85
Slip, mm 0
2
Tensile strength, N/mm
after dry storage, 1,18
after wet storage, 1,05
after warm storage, 1,15
after freeze/thaw 0,94
* parts by weight
Aqualon invites customers to share their wishes and ideas, to suggest product
refinement on the basis of their own practical experience and, in this manner, to
optimize the performance of their products. Technical support based on an
in-depth application knowledge and experience in the industry is offered by
Aqualon’s specialists, who have excellent research facilities at their disposal.
Our aim is to totally meet the customer’s demands. Additional information is
provided through extensive documentation and research reports, as well as
through seminars and workshops. We recognize that there is a clear need for this,
not only for the benefit of new staff at Aqualon’s customers, but also for those who
regularly handle Aqualon products.
Last, but not least, the sales and logistic organization of Aqualon maintains
representations and stockpoints in most countries of the world.
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Products
Type of tile cement CULMINAL® Chemical Viscosity Special characteristics
type basis type
Standard quality with MHEC 40.000 P MHEC very high for universal use;
fibers MHPC 20.000 P MHPC high long open time; good anti-sagging
Standard quality without or C9103 MHPC very high for universal use;
with small quantity of C8564 MHEC high very high water retention;
fibers long open time; very long correction time;
C9115 MHEC extra high for lowest dosage
Standard quality without C9101 MHPC very high high water retention; long correction time
fibers good anti-sagging, long open time,
easy workability
Standard quality without fibers, C8114 MHEC very high high water retention; good anti-sagging;
with redispersible PVA powder, C8555 MHPC high long open time; easy workability; suitable
fast setting for combination with other types
of CULMINAL
Flexible tile cement with high C9111 MHPC medium for heavy tiles; good anti-sagging;
content of redispersible C8121 MHPC high long open time; compatible with nearly
powder all redispersible powders
For further information please
contact any of the following
offices:
Hercules GmbH, Hercules Incorporated
Aqualon Division Aqualon Division
Paul-Thomas-Strasse 56/58 Hercules Plaza
D-40599 Düsseldorf 1313 North Market Street
P.O. Box 130125 Wilmington, DE 19894-0001
D-40551 Düsseldorf U.S.A.
GERMANY Tel.: +1 302-594 5000
8 Tel.: +49 211-749 10 Fax: +1 302-995 4778
Fax : +49 211-749 1200
Hercules Ltd., Hercules Italia S.p.A.,
Aqualon Division Aqualon Division
Langley Road Via Bondanello 15
Salford, Lancashire M6 6JU P.O. Box 1726
UNITED KINGDOM I-40013 Castelmaggiore (Bologna)
Tel.: +44 161-925 8737 ITALY
Fax : +44 161-737 4513 Tel.: +39 51-715 333
Fax: +39 51-714 734
Aqualon France S.A., Hércules Química S.A.,
3, rue Eugène et Armand Peugeot Aqualon Division
F-92508 Rueil Malmaison Cedex Carretera de Valencia, 5/9
FRANCE P.O. Box 32
Tel.: +33 1-471 02400 E-43080 Tarragona
Fax : +33 1-477 70614 SPAIN
Tel.: +34 977-558 800
Fax: +34 977-558 814
Hercules Polska Sp.zo.o Hercules International Limited
ul. Migdalowa 4 Aqualon Division
PL-02-796 Warsaw Veraartlaan 8
POLAND NL-2288 GM Rijswijk
Tel.: +48 22 645 1286/7 P.O. Box 5822
Fax : +48 22 645 1289 NL-2280 HV Rijswijk
THE NETHERLANDS
Tel.: +31 70-413 4341
Fax: +31 70-319 1187
Hercules CZ spol s.r.o Hercules Moscow
´
Na Vyspe 22 1-st Tverskaya-Yamskaya, 23
CZ-14700 Prague 4 Business Centre "Parus"
CZECH REPUBLIC 125047 Moscow
Tel.: +42 2 472 9622 RUSSIA
Fax : +42 2 663 12438 Tel.: +7 095 931 9547 (-49)
Fax: +7 095 931 9546
Hercules does not recommend any use of
its products that would violate any patent
or other rights.
62.015-E3
09/98
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