Withstands Harsh Marine Environments
Providing a high-quality seal, 3Mâ„¢ Marine Grade Silicone Sealant is a one-component cure, silicone sealant engineered to withstand the harsh marine environment. This weather-resistant sealant is formulated to resist mildew and form a non-yellowing seal for above waterline applications. In addition, this marine sealant is high-temperature resistant and remains flexible even after years of exposure. The non-shrinking and non-sagging properties of this product offer simple and efficient application. This marine-grade sealant adheres to bare and painted metal, fiberglass, glass, non-oily woods, plastics and abraded rubbers.
Recommended Applications
- Electrical hatch sealing
- Dashboard components
- Port lights
- Above the waterline interior/exterior sealing
Designed to Endure Marine Environments
3Mâ„¢ Marine Grade Silicone Sealant is a part of a broad range of adhesive sealants uniquely formulated for the marine market. 3Mâ„¢ Marine Grade Silicone Sealant is designed for reliable sealing performance in harsh marine environments.
Understanding Adhesive Sealants
Adhesive sealants provide strong, flexible durable elastomeric bonds that seal against the elements. These sealants excel in challenging industrial, transportation and construction applications. Choose a 3M Manual or Pneumatic Applicator for dispensing 3M adhesives sealant cartridges.
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.

Norton 66260311778, Flexible Diamond Disc 2" K-Loc TR 60/70M, 12 Each
ACS CX1250 Diamond Belt, 1/2" X 24" 30u
ACS 2" Diamond Roloc Disc, 100 Mesh, W/ Plastic Button
Dynabrade 55242 Vane Set (4pk)
ACS 2" Diamond Roloc Disc, 800 Mesh, W/ Plastic Button
3M 14725, Foam and Fabric Spray Adhesive 24, Orange, 16 fl oz Can (Net Wt 13.8 oz), 7100179450, 12/Case
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
3M 62812, Adhesive Sealant 740 UV, White, 290 mL Cartridge, 7100116448, 12 per case 
