3M™ Polyurethane Sealant 540 is a single-component, moisture-curing, polyurethane sealant used to bond a wide variety of materials, including plastics, fiberglass reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal and wood. It exhibits high tensile strength, good UV resistance, low Shore A hardness and low modulus to maintain its functionality in a wide range of extreme service environments.

Features:

• Multi-purpose bonding and long lasting seals
• Permanently elastic to allow joint movement
• Good UV resistance
• Bonds dissimilar materials for increased design flexibility
• Gap filling capability