WACKER® OS - OXIME SEALANT Light Colors
WACKER® OS TRANS is a one-part, neutral-curing, low modulus silicone sealant with good adhesion for the construction and glazing industry.
WACKER® OS TRANS 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 TRANS may be discolored in contact with some organic elastomers, e.g. EPDM, APTK and neoprene.
WACKER® OS TRANS is not recommended for use on natural stone, such as marble, granite, quartzite, as it can cause staining.
WACKER® OS TRANS is not recommended for sealing of aquaria.
WACKER® OS TRANS 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.
WACKER® OS TRANS has a shelf life of at least 12 months when stored in a cool (below 25°C), dry place in moisture-tight original container. 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.
WACKER has a global network of specialist distributors at its disposal. Please select an application so that we can suggest suitable contacts.