Longer Open Time for Positioning Parts
Designed for more complex applications requiring time for complex alignment, 3Mâ„¢ Polyurethane Adhesive Sealant 551 provides excellent adhesion to concrete, wood, aluminum, most lacquered metals, polyester, glass, and stone. Our versatile formula is good for both above and below the waterline in marine applications and bonding aluminum, FRP, metal, plastic, SMC, steel and wood.
Recommended Applications
- Cosmetic skinning on boats, buses, trailers
- Bonding high-performance applications, such as marine windshields
- Waterproofing joints without primers in concrete, glass, marble, granite and brick
- Bonding and waterproofing modular building panels or bathroom units
Paintable after Skin Forms for Improved Appearance
3M Polyurethane Adhesive Sealant 551 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 08023, Adhesive Sealant 740 UV, White, 600 mL Sausage Pack, 7000000933, 12/Case
3M 05280, Marine Adhesive Sealant 4000 UV, White, 3 oz Tube, 7000121531, 6/Case
3M 06586, Marine, Adhesive, Sealant, 4000, UV, White, 400, mL, milliliter, Sausage, Pack, 7000121532, 12/ case
Dynabrade 91163 3/8" W x 13" L 80 Grit A/O DynaCut Belt, 50/pack
3M DP16, Scotch-Brite Driving Pad, 16 in , White, 7000126477
3M 06580, Marine Adhesive Sealant 4000 UV, White, 295 mL Cartridge, 7000046623, 12/Case
3M 00570, DynatronAuto Seam Sealer Caulk, 570, White, 12 oz, 7000125070, 12 per case
3M 45208, Disc Pad Face Plate, 5 in Soft White, 7000120521
3M 49056, Polyurethane Adhesive Sealant 560, White, 310 mL Cartridge, 7000000945, 12/case
3M 08369, MSP Seam Sealer, White, 310 mL Flexpack, 7000045483, 6 per case 
