WACKER® OS - OXIME SEALANT Semi Transparent
WACKER® OS-Semi Transparent is a one-part, neutral-curing, low modulus silicone sealant with good adhesion for the construction and glazing industry.
WACKER® OS-Semi Transparent cures at room temperature under the action of atmospheric moisture to give a permanently flexible silicone rubber.
• Ready Gunnability at low (+5°C) and high (+40°C) temperatures
• Flexible at low (-40°C) and high temperatures (+100°C)
• Low shrinkage during vulcanization
• Good tooling characteristics
• Non-corrosive to metals
• Sealing of joints between glazing and supporting structure (frame, transoms, mullions)
• Sealing of connecting and expansion joints in the building industry
Restrictions on use
WACKER® OS-Semi Transparent may be discolored in contact with some organic elastomers, e.g. EPDM, APTK and neoprene.
WACKER® OS-Semi Transparent is not recommended for use on natural stone, such as marble, granite, quartzite, as it can cause staining.
WACKER® OS-Semi Transparent is not recommended for sealing of aquaria.
WACKER® OS-Semi Transparent exhibits excellent primerless adhesion to many substrates, e.g. glass, tiles, ceramics, enamel, glazed tiles and clinker; metals, e.g. aluminium, steel, zinc or copper; impregnated, varnished or painted wood, and many 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.
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.
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.
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