Bostik Car Silicone Sealant - Black

Benefits

• 100% Waterproof
• Permanently Flexible
• Low Shrinkage
• Excellent Colour Fastness

Limitations

• Not suitable for cylinder head gaskets or for parts permanently exposed to fuel.
• Not suitable for alkaline surfaces such as concrete, fibrous cement, asbestos, plaster and marble.
• Not suitable for some metals i.e. mild steel, lead, copper, tin, galvanized iron, brass or zinc as it may cause corrosion.
• CANNOT be over-painted.
• May become discoloured in contact with some organic elastomers, which tend to bleed oil or solvents into the silicone, e.g. EPDM, APTK, Neoprene and Bituminous surfaces.
• Not suitable for mirrors as it will de-silver the mirror backing, affecting the front appearance of the mirror.
• Not suitable for contact with natural stone i.e. marble, granite, quartzite as it may discolour the surfaces.
• Will not adhere to some plastics such as polyethene, polypropylene and Teflon.
• NOT SUITABLE FOR FISH TANKS (contains a fungicide).
• Do not apply sealant when relative humidity is below 10% - cure rate will be affected.

Cleaning

• Uncured silicone can be removed from the hands or tools using a clean solvent-soaked cloth, e.g. turpentine or
• paraffin. If removing uncured silicone from clothing, check fabric colour fastness before applying solvents.
• Cured sealant must be removed mechanically with a sharp knife or chemically with Bostik Silicone Stripper.