EUROPEAN COATINGS SHOW 2015: WACKER presenterar högpresterande lim
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Munich, February 4, 2015 – At the European Coatings Show
2015, Munich-based chemical group WACKER will be unveiling
novel, silane-terminated polymers for the formulation of industrial
adhesives and for sealing flat surfaces. Known as
GENIOSIL
®
XT, the new binder makes it possible to produce materials
that are extremely tear-resistant and at the same time
highly elastic. This combination of properties unlocks applications
in automotive and mechanical engineering that were previously
closed to silane-curing polymers. The European Coatings
Show will be held in Nuremberg, Germany, from April 21 to 23.
GENIOSIL
® XT 50 and GENIOSIL®
XT 55 further complement
WACKER’s portfolio of silane-curing binders. Both grades are based
on silane-modified polyethers with a high density of crosslinkable silyl
groups which cure to a tight-mesh network that is very strong but
elastic. Adhesive layers and sealing membranes formulated with
GENIOSIL
®
XT possess high strength. However, they are also highly
ductile and will tear only when subjected to strong forces. Damaged
material exhibits no tendency to tear propagation.
GENIOSIL
®
XT thus represents the first technically equivalent alternative
to conventional polyurethane-based systems. By virtue of their
properties, the new polymers are ideal for applications that repeatedly
subject them to dynamic forces, such as vibrations in vehicles and
washing machines. Up to now, applications of this kind were essentially
the domain of isocyanate-curing polymer systems.
Furthermore, GENIOSIL
®
XT’s low viscosity makes it easy to process
at low temperatures. The binders can be formulated with and without
plasticizers or fillers, and blends can be produced in any color. The
compounds can be formulated for adhesion to many conventional
substrates, such as metals, glass, cement, glazed tiles, wood, polycarbonate,
and polymethyl methacrylate. Priming is unnecessary. As
the polymers are also miscible with all other GENIOSIL
®
silaneterminated
polyethers, compounders can vary the properties over a
wide range of formulations. Typical end products are industrial adhesives,
liquid waterproofing systems, and coatings.
GENIOSIL
®
XT 50 for Liquid Waterproofing Systems
GENIOSIL
®
XT 50 is an alpha-silane-terminated polymer and lends
itself to the production of tin-free adhesives and crack-bridging liquid
waterproofing systems. These can possess tensile strengths of up to
9 N/mm
2
and tear strengths of up to 50 N/mm (measured in accordance
with ASTM D 624 B-91). What is more, GENIOSIL
®
XT 50 can
be formulated without fillers to make transparent, tin-free end products
that have good mechanical properties.
GENIOSIL
®
XT 55 is a gamma-silane-terminated polyether. It can
yield shear strengths of over 5 N/mm
2
combined with elongation at
break of around 700 percent, the exact values depending on the formulation.
Such formulations are also notable for their high tear
strength and high elastic recovery. The polymer is therefore ideal for
the production of high strength, yet extremely flexible industrial adhesives
of the kind used, for example, in direct glazing of windshields in
the automotive industry.
Watch our video clip on GENIOSIL
®
XT at:
http://www.wacker.com/ecs-clips
Visit WACKER at the European Coatings Show 2015 in Hall 1,
Booth 1-510.
För mer information, vänligen kontakta:
Wacker Chemie AG
Media Relations & Information
Florian Degenhart
Tel. 49 89 6279-1601
Fax 49 89 6279-2877
Företaget i överblick: WACKER är en globalt verksam kemikoncern med cirka 16.000 anställda och en årsomsättning på cirka 4,48 miljarder € (2013). WACKER har 25 produktionsanläggningar, 21 technical competence centers och 52 försäljningskontor över hela världen.
WACKER SILICONES Silikonoljor, silikonemulsioner, silikongummi och silikonhartser, silaner, pyrogena kiselsyror, termoplastiska silikonelastomerer
WACKER POLYMERS Polyvinylacetat- och vinylacetat-kopolymerer i form av dispersionspulver, dispersioner och fasthartser som bindemedel för byggkemiska produkter, färger, lim, lacker, putser och fiberdukar samt i polymera material baserade på återvinningsbara resurser.
WACKER BIOSOLUTIONS Bioteknologiska produkter såsom cyklodextriner, cysteiner och biologiska produkter liksom finkemikalier och PVAc fasta hartser
WACKER POLYSILICON Polysilicium för halvledar- och fotovoltaikindustrin
Siltronic Wafers av högrent silicium och enkristaller för halvledarkomponenter.
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