WACKER® FA
WACKER® FA is a one-part, acid-curing,low-modulus silicone sealant with outstanding adhesion and long shelf life for construction,glazing and window application as well as sanitary applications.
WACKER® FA cures at room temperature under the action of atmospheric moisture to give a permanently flexible silicone rubber.
Properties
• Non-sag
• Suitable for use in sanitary areas
• 100% silicone
• Low shrinkage on curing
• Ready gunnability at low (+5 °C) and high (+40°C) temperatures
• Flexible at low (-40°C) and high temperatures (+180°C)
• Rapid crosslinking: quickly becomes tack-free
• Adheres excellently to glass, vitrified surfaces, ceramic tiles, many plastics, and most paints
• Excellent tooling properties
• Long shelf life
Data sheets
Application
• glass and windows construction
• glass and windows construction
• sealing of joints between glazing and supporting structure (frame, transoms, mullions)
• sealing of joints exposed to high levels of moisture, e.g. sanitary field
• industrial application as sealant in the automotive, aircraft and shipbuilding industries
Restrictions on use
WACKER® FA should not be used on substrates such as marble, concrete, fibrous cement and mortar, as the product releases acetic acid during vulcanization.
WACKER® FA should not be used in contact with metals such as lead, copper, brass or zinc due to corrosion.
WACKER® FA may be discolored in contact with prestresses polyacrylate elements as it may cause stress cracking.
WACKER® FA may be discolored in contact with some organic elastomers, e.g. EPDM, APTK and neoprene.
WACKER® FA must not be used for sealing of aquaria.
WACKER® FA is not recommended for use on natural stone, such as marble, granite, quartzite, as it can cause staining.
WACKER® FA is not recommended for structural glazing bonding.
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
WACKER® FA 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
Storage
WACKER® FA has a shelf life of at least 18 months when stored at a cool dry place (below 25°C).
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
13494 Bundang-gu, Seongnam-si
Korea
+82 31 697-7209 (Fax)
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Distributors
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