WACKER® GF - COLORFUL GAP FILLER 2
WACKER® GF is a one-part, neutral-curing, low-modulus DIY silicone sealant with outstanding adhesion, long shelf life and excellent tooling characteristics.
WACKER® GF cures at room temperature under the action of atmospheric moisture to give a permanently flexible silicone rubber.
Properties
• Non-sag
• Ready gunnability at low (+5°C) and high (+40°C) temperature
• Flexible at low (-40°C) and high temperatures (+150°C)
• Excellent weatherablity
• Almost odorless
• Excellent tooling characteristics for professional use
• Non-corrosive to metals
• Suitable for alkaline substrates such as concrete, mortar, fibrous cement
Documents
Application details
Applications
• DIY applications
• Sealing of connecting and expansion joints in the building industry
• Sealing of joints between glazing and supporting structure
Restrictions on use
- may be discolored in contact with some organic elastomers, e.g. EPDM, APTK and neoprene
- is not recommended for use on natural stone, such as marble, granite, quartzite, as it can cause staining
- must not be used for sealing of auqaria
- is not recommended for structural glazing bonding
- The curing time can be extended at lower temperature, lower humidity or by low volume of air exchange.
Preparation
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.
Adhesion
It 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.
Packaging & Storage
Storage
It has a shelf life of at least 12 months when stored at a cool dry place.
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.
Material list
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Sales and support
Distributors
WACKER has a global network of specialist distributors at its disposal. Please select an application so that we can suggest suitable contacts.