Silicone Weather proofing Sealant is a one part, neutral cure, architectural grade sealant designed for architectural weather sealing. It has excellent movement capability and un-primed adhesion to most building materials. It easily extrudes in any weather and produces a durable, flexible silicone rubber seal. Applications Sealing of joint between ACP Sheets. Sealing of joint between Glass Panels. Sealing of concrete or Brick joints. Sealing of Wood, UPVC joints etc.