DOWSIL 832 Multi-Surface Adhesive Sealant Black is a one component, non-slumping silicone paste that is used for protecting, sealing, and bonding a variety of materials such as concrete, glass, plastics, metals, and rubber. It is recommending for marine equipment, assembly equipment, roof penetrations, concrete floor seams, and windows. It offers unprimed adhesion, low odor, neutral cure, flexibility, and is non-corrosive. 300 mL Cartridge. 2 Pack