3M™ Polyurethane Sealant 540, Gray, 600 mL Sausage Pack, 12/Case
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3M™ Polyurethane Sealant 540, Gray, 600 mL Sausage Pack, 12/Case

Multi Purpose Sealant with Good UV Resistance
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. Available in cartridge, sausage pack, pail and drum volumes to meet your application needs.
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
 
Details
- 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
 
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.
