Sealing heating, ventilating or air conditioning duct work
Seal cracks or gaps around windows, vents, ducts, fixtures and lights
Seal leaks in gutters, downspouts, ducts and piping
Seal cracks in interior walls and ceilings, door joints and fixtures
Seal electrical connections and boxes to waterproof
Bond gaskets in heating and refrigeration units
BOSS® 380 Contractor’s Silicone is a one-part acetoxy cure adhesive sealant that is suitable for general construction sealing and adhesive applications
This product will adhere to clean metal, glass, many types of wood, silicone resins, vulcanized silicone rubber, ceramics and plastic surfaces
A primer may be required for optimum adhesion to some substrates