3M polyurethane adhesive sealant 540 is an all purpose, single component, moisture curing, gap filling polyurethane adhesive that creates permanently elastic seals and bonds in a wide variety of service environments. Commonly used in panel bonding and joint sealing applications. 3M polyurethane adhesive 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. 3M polyurethane adhesive sealant 540 offers an alternative to mechanical fasteners and can replace rivets in some applications. It will bond dissimilar substrates and a wide selection of materials. This adhesive will perform in temperatures ranging from -40 to 194 deg F. Once skin forms (60 to 90 min), the sealant can be painted to improve the final finish. Polyurethane sealants provide strong, flexible durable elastomeric bonds that seal against the elements. These sealants excel in challenging industrial, transportation and construction applications. Polyurethane sealants are available in a wide variety of shore A hardness, open time and colors to meet many application needs. In our 3M industrial adhesives and tapes division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.