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 25208 Housing Ass'y for Model 52639
Dynabrade 78672 5/8" Dia. x 1-1/2" W x 1/8" Center Hole, Tapered Cartridge Rolls, A/O, 120 Grit, 100/pack
Dynabrade 31968 Conductive Y Adapter
Dynabrade X51S 5" Dia. Non-Vacuum Dynorbital_ Extreme Random Orbital Sander, PSA W/ Speed Regulator
Dynabrade 52675 1 hp Straight-Line 6" (152 mm) Extension Die Grinder, Rear Exhaust, 9,000 RPM, 1/4" Collet
Dynabrade 81005 2" W x 42" L 80 Grit A/O DynaCut Belt, 10/pack
Dynabrade 48360 .4 hp Straight-Line Die Grinder, Rear Exhaust, 20,000 RPM, 1/4" Collet
Dynabrade 13501 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 1,800 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 56182 6" Dia. Non-Vacuum Disc Pad, Hook-Face Short Nap
Dynabrade 13507 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 4,500 RPM, 1/2" (13 mm) Dia. Arbor
Dynabrade 93338 Carbide Burr, 3/32" Dia., SA-42 D/C Burr, Cylinder, 7/16" Flute L, 1/8" Shank
Dynabrade 15336 Rubber Drive Wheel
Dynabrade 64985 Replacement Pre-Filter Blanket
Dynabrade 93172 4" Dia. X 1/4" Dia. Shank, 320 Grit, A/O, Spindle-Mount Sanding Star
Dynabrade 98271 1/2" NPT Male Plug
Dynabrade 15006 Mini-Dynafile II Abrasive Belt Tool Versatility Kit
Dynabrade 96353 Punch Set (8 Pc) 
