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.

3M 26129, PPS Series 2.0 Adapter, Type S34, 3/8 Female, 18 Thread NPS, 7100135938
Standard Abrasives 725017, Buff and Blend Cross Buff GP, A/O Fine, 3/4 in x 3/8 in x 2 Ply x 8-32, 7010330367
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 76680, Cloth Belt 777F, 60 YF-weight, 2-1/2 in x 60 in, Film-lok, Single-flex, 7010299927, 50 per case
Standard Abrasives 882141, A/O Unitized Wheel, 821, 3 in x 1/2 in x 3/8 in, 7010367108
3M 14750, Scotch-Brite EXL Unitized Wheel, XL-UW, 2S Fine, 3 in x 1/4 in x 3/8 in, 7000000699
3M 92023, Repulpable Splittable Flying Splice Tape R5348, Blue, 37.5 mm x 33,m, 5 mil, 24 rolls per case, 7010374532
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male
3M 15118, Scotch-Brite EXL Unitized Wheel, XL-UW, 6A Medium, 3 in x 1/4 in x 3/8 in, 7000000703
Dynabrade 14360 Pneumatic Pipe Belt Finisher
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 26005, PPS Series 2.0 Adapter, Type S4, 12 mm Female, 1.0 mmThread, 7100135830
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
ACS CX1250 Diamond Belt, 1/2" X 24" 30u
Standard Abrasives 722809, PSA A/O Extra Disc, 5 in x NH, 60, 7010368721
Dynabrade 95544 Gear Grease, 2.5oz. Tube
Dynabrade 14000 Dynafile Abrasive Belt Tool
Standard Abrasives 725007, Buff and Blend Cross Buff HS, A/O Medium, 1 in x 3/8 in x 2 Ply x 8-32, 7000046828
3M™ 07011, Supplied Air Respirator Hose W-9435-50/07011(AAD), 7000005373, 1 EA/Case
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943 
