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.

Standard Abrasives 827620, Buff and Blend HP Power Pad, 6 in x 9 in, A VFN, 7010310293, 50 ea/Case
Standard Abrasives 725002, Buff and Blend Cross Buff GP, A/O VFN, 1-1/2 in x 1/2 in x 2 Ply x 8-32, 7010368694
Standard Abrasives 725004, Buff and Blend Cross Buff GP, A/O Coarse, 1-1/2 in x 1/2 in x 2 Ply x 8-32, 7000047136
3M 92296, Drywall Hand Sander DRHS-0011, 3-5/16 in x 9-1/4 in, 7010371095
Dynabrade 15101 Tension Arm (for Mini Dynafile II)
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
Standard Abrasives 724276, Buff and Blend Circle Buff GP, 2 in x 2 Ply x 8-32 A MED, 7010330371
Standard Abrasives 725006, Buff and Blend Cross Buff HP, A/O VFN, 1-1/2 in x 1/2 in x 3 Ply x 8-32, 7000046827
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 51430 5" Dia. 7 Degree Offset Rotary Buffer, .4 hp, 3,200 RPM, Rear Exhaust, 3/8"-24 Spindle Thread
3M 14270, Disc Pad Face Plate, 4-1/2 in Hard Black, 7000144144
Dynabrade 22090 2-3/4" x 5" Hand Sanding Block
3M 71346, 675L, 1" X 120", 125u, Diamond Microfinishing Film Belts, 7010534823
3M 64933, Scotch-Brite Pro Hand Pad, PO-HP, 1 - 6 in x 9 in pad 7447 PRO and 1 - 6 in x 9 in pad 7448 PRO, Multi-pack, 7100033494
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 62816, Adhesive Sealant 760 UV, White, 600 mL Sausage Pack, 7000046609, 12/Case
Dynabrade 78237 Polishing Compound (Blue)
Dynabrade 95727 Glaze 4oz.
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
3M 05207, Hookit Sanding Block D/F, 70MM x 127MM, 7100007814
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 47201, Polyurethane Sealant 540, Black, 600 mL Sausage Pack, 7100198009, 12/Case
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 08024, Adhesive Sealant 740 UV, Black, 290 mL Cartridge, 7100115542, 12 per case 
