Pure silicone sealant is a specially formulated, neutral-cure, 100% silicone sealant for a variety of substrates such as ceramic tile, slate, wood, metal, glass, fiberglass, laminate and plastic. For use as a flexible barrier between horizontal and vertical surfaces or any other changes in plane such as expansion joints in non-traffic areas, fixtures, tub surrounds, sinks, toilets, vanities, electrical plumbing penetrations, floors, walls and ceilings. Pure silicone is designed for use in interior, exterior, intermittent wet and dry installations. Pure silicone has superior elongation and flexibility for use in change of plane joint applications.