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 14000 Dynafile Abrasive Belt Tool
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
3M 28216, Cubitron II Roloc Disc 984F, 36+ YF-weight, TR, 3 in, Die R300V, 7010361117
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 90874 2" Dia. Very Fine NWN DynaBrite Locking-Type Disc, 25/pack
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Dynabrade 92032 3" Dia. x 80 Grit Ceramic Non-Vacuum DynaCut Locking-Type Disc, 25/pack
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 14360 Pneumatic Pipe Belt Finisher
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
3M 08360, Urethane Seam Sealer, White, 310 mL Foil Pack, 7000036353, 6 per case
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 78402 2" Dia. x 1/2", Dyna Premium Rapid Strip TR Disc, 25/pack
Dynabrade 78423 4-1/2" Dia. x 3/8" Very Fine DynaBrite Surface Conditioning Disc, 25/pack
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 95544 Gear Grease, 2.5oz. Tube
3M 08022, Adhesive Sealant 740 UV, Gray, 600 mL Sausage Pack, 7100057386, 12/Case 
