Withstands Harsh Marine Environments
Providing a high-quality seal, 3M™ 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
3M™ Marine Grade Silicone Sealant is a part of a broad range of adhesive sealants uniquely formulated for the marine market. 3M™ 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.

Dynabrade 95544 Gear Grease, 2.5oz. Tube
3M 26562, Cloth Belt 341D, 80 X-weight, 2 in x 48 in, Film-lok, Single-flex, 7000118793, 50 per case
3M 08994, Scotch-Weld Epoxy Adhesive DP100, Clear, 48.5 mL Duo-Pak, 7100148763, 12/case
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 15420 Dynafile III Abrasive Belt Tool
3M 19772, Utility Cloth Sheet 314D, 9 in x 11 in P80 J-weight, 7000000359
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 35124, Grippy Sanding Cloth Trial Kit, 7100230957
ACS Diamond Cloth Belt, CX1250 3" X 30" 45U
3M 19769, Utility Cloth Sheet 314D, 9 in x 11 in P150 J-weight, 7000000357
3M 05009, Utility Cloth Roll 211K, 100 J-weight, 1 in x 50 yd, Full-flex, 7100016843
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 87260, Scotch-Weld Epoxy Adhesive DP100, Clear, 200 mL Duo-Pak, 7100075490, 12/case 
