3M™ Polyurethane Sealant 540

3M™ Polyurethane Sealant 540 is an all-purpose, single-component, moisture-curing, gap-filling polyurethane that creates permanently elastic seals and bonds in a wide variety of service environments.

TYPICAL APPLICATIONS

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.

Recommended Applications: Vertical and horizontal panel bonding and joint sealing, Aluminum curtain walls and storefronts, Transportation manufacturing (bus, rail, truck, trailer), Replacement of mechanical fasteners in many situations.

FEATURES & BENEFITS

• Multi-purpose bonding and long lasting seals
• Permanently elastic to allow joint movement
• 60-90 skin time; paintable, once skin forms
• Good UV resistance
• One component, moisture-curing sealant simplifies production
• Bonds dissimilar materials for increased design flexibility
• Gap filling capability