Tough and Flexible to Form Strong Bonds
Forming watertight seals, 3M™ Marine Adhesive Sealant 5200 offers permanent adhesion to wood, gelcoat and fiberglass. In addition, our marine adhesive sealant is flexible and allows for structural movement and dissipation of stress that may be caused by vibration, swelling, shrinking or shock. Available in both cartridge and sausage packs to meet your application requirements.
Recommended Applications
- Fiberglass deck to hull
- Through hull fittings
- Wood to fiberglass
- Portholes and deck fittings
- Motors on fiberglass transoms
- Under moldings
- Hull seams above and below water line
- Deck housing
Combats Vibrations, Swelling, Shrinking and Shock
3M™ Marine Adhesive Sealant 5200 is designed to meet the high demands of the marine environment, making it ideal for creating tough bonds resistant to saltwater and weathering. We formulated our sealant to provide an exceptionally strong solution for marine conditions as well as flexibility that combats vibrations, swelling, shrinking or shock. Once again, despite the barriers of a rough marine environment, 3M looked to science to provide a reliable, durable solution.
Designed to Endure Marine Environments
3M™ Marine Adhesive Sealant 5200 is a part of our broad range of adhesive sealants uniquely formulated for the marine market. Designed for reliable performance, 3M Marine Adhesive Sealant 5200 is the most trusted sealant in the industry for permanent, high strength bonding.
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 45715, Cubitron II Hookit Cloth Disc 947A, 40+ X-weight, 5 in x NH, D/F 5HL, Die 500FH, 7100113110
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 71346, 675L, 1" X 120", 125u, Diamond Microfinishing Film Belts, 7010534823
3M 45038, Wheel Adapter Kit No.3, 5/8-11 External, 7000028423
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
Standard Abrasives 37446, PSA A/O Disc, 700595, 1-1/2 in x NH, 60, 7010331822
3M 95620, Venture Tape Metal Building Facing Tape 1531CW, White, 6 in x 50 yd, 7010313495
ACS CX1250 Diamond Belts, 1/2" X 24" 45u
Standard Abrasives 42631, A/O Flap Wheel 622108, 1-1/2 in x 1/2 in x 1/4-20 in 120, 7010369109, 10 per case
3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
3M 70894, 641WY 1/2" X 24", 100 Mesh Diamond Cloth Belt, 7010533228
3M 16585, Accuspray Atomizing Head, Clear, 1.8 mm, 7100078990
3M 62795, Polyurethane Adhesive Sealant 550FC Fast Cure, Black, 310 mL Cartridge, 7100001803, 12/Case 
