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 51750 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
Dynabrade 51393 6"-8" Dia. Right Angle Two-Hand Rotary Buffer, 1 hp, 4,500 RPM, Rear Exhaust, 5/8"-11 Thread
3M 05674, Disc Pad Holder, 914, 4 in x 1/8 in x 3/8 in 5/8-11 Internal, 7000120888
Insize 7262-200, OUTSIDE SPRING CALIPER, 8", 6928640319679
Dynabrade 52373 4" (102 mm) Dia. Straight-Line Type 1 Wheel Grinder, 1 HP, 12,000 RPM, 3/8"-24 Spindle
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Norton 66623335427, 2" Dia Vortex Rapid Prep Quick-Change Non-Woven Abrasive Disc, Medium Grade, 50 Each
3M 94714, Cubitron ll Cloth Belt 947A, 120+ X-weight, 3/4 in x 20-1/2 in, Fabri-lok, Single-flex, 7010307700, 200 per case
3M 00254, Scotch-Brite Clean and Finish Roll, 12" x 30ft, CF-RL, Talc, 7000045859
3M 16199, PPS Disposable Lids, Standard and Large, 125 Micron Full
Diameter Filter, 25 lids per case, 7000119821
Dynabrade 51301 .5 hp Straight-Line Die Grinder
3M 65056, Scotch-Brite Blending Hand Pad 7446, HP-HP, SiC Medium, 6 in x 9 in, 7100082599, 40/Case
Dynabrade 93650 5" Dia. x 3/4" CH 40/50 Grit Side Spoked Diamond Cut-Off Wheel
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 51811 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 1/16" Collet
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M 65055, Scotch-Brite Heavy Duty Hand Pad 7440, HP-HP, A/O Medium, 6 in x 9 in, 7100080459, 40/Case
3M 30289, Trizact Hookit Finishing Foam Sheet, 5000, 2-3/4 in x 5-1/2 in, 7000120135, 15 Sheets/Carton
3M 27513, Cubitron II Cloth Belt 984F, 36+ YF-weight, 8 in x 132 in, Film-lok, Single-flex, 7010300123, 10 per case
Dynabrade 52380 4" (102 mm) Dia. Straight-Line Type 1 Extension Wheel Grinder, 1 HP, 15,000 RPM, 3/8"-24 Spindle
Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 92207 1/8" W x 12" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 51753 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 50,000 RPM, 1/8" Collet 
