LANXESS GLASS FIBER
LANXESS is one of the world’s leading manufacturers of engineering ther-
moplastics. In addition to production plants for polymer base resins, mono-
mers, compounds and blends, LANXESS operates a glass fiber producti-
on facility in Antwerp (Belgium) with state-of-the-art manufacturing and
environmental protection technology. Research and development and tech-
nical service departments are located both at the production site and at our
headquarters in Germany.
The LANXESS Antwerp plant produces exclusively E-glass fibers. This
glass is defined by DIN 1259 as an aluminum borosilicate glass with an
alkali content of less than 2% by weight.
The use of glass fibers as reinforcement in thermoplastic polymers like
polyamides, polyesters and polypropylene yields materials with very attrac-
tive properties. Glass fiber-containing thermoplastic compounds show high
strength and stiffness while maintaining a high level of impact strength.
Combined with their low specific weight, ease of processing and tailor-
made properties, these materials find widespread use in automotive appli-
cations, household and electronic appliances.
Coating the glass fibers with a suitable composition called “size” is of vital
importance to the production, processing and end use of glass fibers. At
LANXESS, the development of sizing systems benefits not only from a
dedicated product development team, but also from the company’s wealth
of experience in polymer chemistry, as well as the valuable technical input
provided by other LANXESS business units.
Our range of glass fibers comprises a broad spectrum of grades which dif-
fer with respect to the type of size used (surface treatment), and their form
(diameter and strand length).
LANXESS glass fibers for the reinforcement of thermoplastics, polyuretha-
nes and thermosets are supplied in different forms for specific purposes.
The two basic forms are:
CHOPPED STRANDS (CS)
MILLED FIBERS (MF)
Directly after the application of size, the continuous glass fiber strand is
cut into chopped strands. With different diameters and sizes the glass
fibers are used mainly to reinforce thermoplastic and thermoset resins.
Characteristics such as integrity, flowability, compatibility, etc. differ
depending on the application, e.g. PA, PC, PP, PBT and PPS.
Chopped strands are subjected to an additional specific milling operati-
on to yield milled fibers. Through this treatment the fibers are reduced to
different lengths. Milled fibers are used mainly for the reinforcement of
thermoplastic resins, polyurethanes and some special applications like
HOW ARE GLASS FIBERS MANUFACTURED?
E-glass is fused from quartz sand, kaolin and other ingredients at
approximately 1,400 °C in a furnace lined with highly refractory brick,
refined for several days and then fed in liquid form to the bushings
through a system of channels known as the fore-hearth.
These bushings, made of a platinum alloy, are heated to such a tempe-
rature that the glass flows slowly out of the nozzle-like holes (orifices)
on the underside.
By stretching the viscous monofilaments with the aid of a high speed
chopper, they are reduced to the required diameter and at the same time
drawn out to many times their original length. During this operation the
threads are cooled by water and immediately coated with a dedicated
SIZES FOR GLASS FIBER
The mechanical properties of glass fiber reinforced thermoplastics
depend heavily on the sizing system applied to the glass fiber surface.
The sizing system determines the compatibility, and thus the bonding bet-
ween the glass fiber and the polymer matrix. Because of their diverse
chemical nature, each different polymer matrix needs a specific sizing
The size not only has an enormous positive impact on the mechanical
properties of the compound, but has a function to perform even during
the spinning process. Its lubricating action protects the wet strand
against friction and breakage. During the subsequent drying process, it
bonds together the individual monofilaments in the strand.
The size also has the function of imparting product properties like strand
integrity and free-flowing behavior, depending on the intended applicati-
on. It is also important for the automated handling of LANXESS glass Glass fiber embedded in a polymer-matrix
fibers, e.g. in pneumatic conveyance systems or weighing hoppers.
Worldwide HSEQ management makes sure that LANXESS does not
compromise safety at work, minimizes waste and emissions into the
environment, maximizes the ecological compatibility of its products and
meets the highest standards of quality and product stewardship.
HSEQ stands for Health, Safety, Environmental Protection and Quality.
Our global activities are governed by the principles of sustainable
That means we give equal priority to economic growth, ecological
compatibility and social aspects.
In line with this philosophy, LANXESS supports the international
Responsible Care initiative, which it sees as an indispensable basis for
its corporate culture.
DETERMINES HOW WE ACT -
TO PROTECT OUR EMPLOYEES,
THE ENVIRONMENT AND
SOCIETY AS A WHOLE.
SUPPLY CHAIN/ PACKAGING
LANXESS offers a comprehensive range of different packaging con-
cepts, from 20 kg cardboard boxes, octa-bins, and big bags up to bulk
delivery in 20,000 kg containers. Moreover we run an open IT- landsca-
pe which enables us to offer individual e-business solutions, e.g. EDI and
internet-based marketplaces, where customers can order on demand
and easily monitor the progress of their product. Qualified technical and
commercial service ensures the fulfillment of individual customer needs.
C O M PA N Y
LANXESS - A NEW GLOBAL PRESENCE
LANXESS is an internationally active chemical company with customers
in every corner of the world. We are a strategic source for high quality
chemicals, synthetic rubber, synthetic fibers and plastics, providing sup-
port for the development and implementation of success-focused pro-
duct system solutions.
We have a strong profile.
A chemical company with a long tradition.
A flexible global player with strong roots.
A reliable partner with state-of-the-art know-how.
We offer solutions.
From commodities to high-tech systems solutions.
From multifunctional fibers to specialty rubber.
We meet our goals.
Through focus on our core business.
Through efficient structures.
Through active portfolio management.
We look ahead.
Strategic, organizational and cost-saving measures are the key to a
bright and successful future.
C O M PA N Y
The strong roots of LANXESS serve as the foundation for the future.
LANXESS operations have a long history with a rich tradition of research
and discovery. Our roots go back to 1863, the year Bayer was founded.
In 2004, Bayer AG combined most of its chemical activities and
approximately one third of its polymer activities into a new company,
LANXESS Deutschland GmbH.
Phone: +49 (0)700 glassfiber
+49 (0)700 45 27 73 42
This news release contains forward-looking statements based on current assumptions and fore-
casts made by LANXESS Deutschland GmbH management. Various known and unknown risks,
uncertainties and other factors could lead to material differences between the actual future consol-
idated results, financial situation, development or performance of the company, and the estimates
given here. The company assumes no liability to update such forward-looking statements or to
adapt to future events or development.
This information and our technical advice – whether verbal, in writing or by way of trials – are given
in good faith but without warranty, and this also applies where proprietary rights of third parties are
involved. Our advice does not release you from the obligation to verify the information currently pro-
vided – especially that contained in our safety data and technical information sheets – and to test
our products as to their suitability for the intended processes and uses. The application, use and
processing of our products and the products manufactured by you on the basis of our technical
advice are beyond our control and, therefore, entirely your own responsibility. Our products are
sold in accordance with the current version of our General Conditions of Sale and Delivery.
LANXESS DEUTSCHLAND GMBH | D-51369 LEVERKUSEN | WWW.LANXESS.COM