WACKER® GA is a one-part, neutral-curing, silicone sealant with outstanding adhesion, excellent tooling characteristics for construction, perimeter sealing and glazing.

WACKER® GA cures at room temperature under the action of atmospheric moisture to give a permanently flexible silicone rubber.


•  Non-sag

•  Ready gunnability at low (+5°C) and high (+40°C) temperature

•  Flexible at low (-40°C) and high temperatures (+120°C)

•  Excellent weatherablity

•  Excellent tooling characteristics for professional use

•  Non-corrosive to metals

•  Low shrinkage during curing



•   DIY applications (cars, boat, caravan, house)

•   Sealing of connecting and expansion joints in the building industry

•  Sealing of joints between glazing and supporting structure (frame, transmos, mllions).


Restrictions on use


WACKER® GA may be discolored in contact with some organic elastomers, e.g., EPDM, APTK and neoprene.

WACKER® GA is not recommended for use on natural stone, such as marble, granite, quartzite, as it can cause staining.

WACKER® GA must not be used for sealing of auqaria.

WACKER®GA is not recommended for structural glazing bonding.




The substrate areas that will be in contact with the sealant must be clean, dry and free of all loose material, dust, dirt, rust, oil and other contaminants. Non-porous substrates should be cleaned with a solvent and a clean, lint-free, cotton cloth. Wipe dry immediately with another such cloth before the solvent evaporates from the surface.




WACKER®GA exhibits excellent primerless adhesion to most non-porous siliceous material, e.g. glass, tiles, ceramics, enamel, glazed tiles and clinker; impregnated, varnished or painted wood; and some plastics.

Users must carry out their own tests due to the great variety of substances.

The adhesion can be improved in many cases by pretreatment of the substrates with a primer.

If adhesion difficulties arise please contact our technical service.



WACKER® GA is usually supplied in standard size cartridges that fit all standard caulking guns


The "Best use before end" date of each batch is shown on the product label.

Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Sales and support

Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397
United States
+1  888  922-5374 (Phone)

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