3M Products Polyurethane Sealant 540

3M Products 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 including plastics, fiberglass reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal, and wood.

Features and benefits:

* Recommended Applications: Vertical and horizontal panel bonding and joint sealing, aluminum curtain walls and storefronts, Transportation manufacturing (bus, rail, truck, trailer), and replacement of mechanical fasteners in many situations
* 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
* Multi-purpose bonding and long-lasting seals
* Permanently elastic to allow joint movement
* 60 to 90 minute skin time; paintable, once skin forms
* Good UV resistance
* One component, moisture-curing sealant simplifies production
* Bonds dissimilar materials for increased design flexibility
* Replacement of mechanical fasteners in many situations
*Available in cartridge, sausage pack, pail, and drum volumes to meet your application needs Show Less