Works on a Wide Variety of Similar and Dissimilar Substrates
3M™ Polyurethane Adhesive Sealant 550 Fast Cure is part of our 500 Series one-component, moisture-curing, urethane adhesives. These adhesives create a permanently elastic bond and bond strongly a variety of substrates such as wood, fiber reinforced plastic (FRP) and many other plastics to themselves, to metal and to glass. Our moisture-curing formula cures by reacting with moisture in the air or the substrate. In addition to spraying, they can also be extruded from hand held or bench mounted applicators and are primarily dispensed with bulk application equipment_. Our one-part polyurethane adhesives work well for bonding a wide variety of plastics including polystyrene and polyacrylic. They are also effective on a wide variety of other substrates – from aluminum and glass to plastic and wood.
Recommended Applications
- Marine deck to hull bonding
- Vertical and horizontal expansion joint applications
- Concrete and masonry control joints
- Aluminum curtain wall and storefronts
- Door and window frame perimeters
Paintable after Skin Forms for Improved Appearance
3M™ Polyurethane Adhesive Sealant 550 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?F/-40?C to 194?F/90?C. Once skin forms (60-90 minutes), the sealant can be painted to improve the final finish.
Understanding Polyurethane Sealants
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. Choose a 3M Manual or Pneumatic Applicator for dispensing 3M adhesives sealant cartridges and 400ml/600ml sausage packs.
Bringing Better Ideas to the Surface through Science and Innovation
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.

Norton 66261126299 - 2" X 50 Yard 80 Grit Metalite™ Aluminum Oxide Cloth Roll, 1 Each
3M 86992, Diamond Disc, 3" Roloc, 674W, 120 Mesh, TR, 7100143477, Box of 5
Standard Abrasives 713297, Aluminum Oxide Handy Roll, P120 J-weight, 2 in x 50 yd, 7100031623
3M 08916 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Medium, 2 in x 60 in, 7010309628
3M 17534 Scotch-Brite Surface Conditioning Low Stretch Belt, SC-BL, A/O Medium, 2-1/2 in x 60 in, 7010366042
Standard Abrasives 712149, Aluminum Oxide Handy Roll, P100 J-weight, 1-1/2 in x 50 yd, 7010295370
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
Standard Abrasives 707195, Aluminum Oxide Handy Roll, P80 J-weight, 2 in x 50 yd, 7100031626
3M 20967, Portable Utility Cloth Roll 314D, P240 J-weight, 1 in x 20 yd, 7010290604
3M 05009, Utility Cloth Roll 211K, 100 J-weight, 1 in x 50 yd, Full-flex, 7100016843
3M 17528 Scotch-Brite Surface Conditioning Low Stretch Belt, SC-BL, A/O Very Fine, 1-1/2 in x 60 in, 7010292405
3M 19765, Utility Cloth Sheet 314D, 9 in x 11 in P280 J-weight, 7000000353
3M 19766, Utility Cloth Sheet 314D, 9 in x 11 in P240 J-weight, 7000000354
3M 35124, Grippy Sanding Cloth Trial Kit, 7100230957
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
Dynabrade 58441 5" Dia. Two-Hand Gear-Driven Sander, Non-Vacuum, .45 HP, 900 RPM, Hook-Face Pad
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 00254, Scotch-Brite Clean and Finish Roll, 12" x 30ft, CF-RL, Talc, 7000045859 
