BT620 Construction Silicone Sealant is a neutral cure, one part, multi- purpose silicone sealant formulate for trades, domestics and decoration usages. the cured sealant exhibits very good physical properties, weathering resistance ,sealing and durability. cured sealant bonds firmly to substrates and give flexible silicone rubber. Typical Uses: For glass, fiberglass, ceramics, tiles, aluminium, metals&steel,most plastics,stones , porous & non-porous substrates; for glazing & caulking , glass & mirror windows & doors ,facades panels , movement joints & waterproofing ,interior sealing & exterior weatherproofing, general building construction usages. Colours: White, Gray, Bronze and Black