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.

Dynabrade 78424 4-1/2" Dia. x 3/8" Medium DynaBrite Surface Conditioning Disc, 25/pack
Dynabrade 78128 3" Dia. Coarse NWN VT DynaBrite Locking-Type Disc, 25/pack
Dynabrade 78176 2" Dia. Medium NWN VT DynaBrite TR Locking-Type Disc, 25/pack
Norton 66261013403 - 3" X 1/2" Extra Coarse Grade Silicon Carbide Bear-Tex Rapid Strip TR Stripping Disc, 10 Each
Norton 66261014897 2" x 1/4" Bear-Tex NEX Rapid Blend AO Medium Grit TR (Type III) Non-Woven Wheel, 60 Each
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
Standard Abrasives 701656, Cartridge RoII Mandrel, 3/16 in x 2 in x 1/4 in x 1-1/4 in x 4 in CM-18, 7010368730
Standard Abrasives 882173, A/O Unitized Wheel, 821, 6 in x 1/4 in x 1/2 in, 7010330323
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
Dynabrade 51622 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 35,000 RPM, 3mm Collet
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Standard Abrasives 713638, Cartridge RoII Mandrel, 3/32 in x 3/4 in x 1/8 in x 1 in x 2-3/4 in CM-2B, 7010294964
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 50010, VentureClad Insulation Jacketing Tape 1577CW-WME, White, 99 mm x 13.7 m, 7010379907
Dynabrade 50303 4-1/2"- 5" (114 mm-127 mm) Dia. Vertical Depressed Center Wheel Grinder, 1.2 HP, 12,000 RPM, 5/8"-11 Spindle
Dynabrade 95676 1/4" Female Coupler with 1/4" Male Plug Assembly
Dynabrade 61420 Raptor Vac Electric Portable Vacuum System
3M 29832, Sanding Screen, 150 Grit, 18 in x NH, 7100160831
3M 33446, Cubitron II File Belt, 80+, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100033186, 10 belts per carton, 5 cartons per case
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 51301 .5 hp Straight-Line Die Grinder
ACS Diamond Cloth Belt, CX1250 3" X 30" 60M/250U
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663
Dynabrade 54430 4" Dia. Extended Right Angle Disc Sander, Steel Housing, Rear Exhaust, .7 HP, 12,000 RPM, 3/8"-24 Thread
3M 35827, Hookit Dust Extraction Flexible Sanding Block, 273 mm x 67 mm, 7100256623
Insize 0110-1125, ANEMOMETER, 6974029776595
Dynabrade 93351 Carbide Burr 12-Piece Burr Kit, 1/8" Shank
3M 07466, Scotch-Brite Roloc+ Clean and Strip Disc 7466, 4 in x 1/2 in S XCS, 7000120779, 10/case
Dynabrade Rebel Series 53290 - 7" Type 41 Cut-Off Wheel Grinder
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 47195, Polyurethane Construction Sealant 525, Gray, 600 mL Sausage Pack, 7100198003, 12/Case 
