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 18592 Exhaust Bushing
Dynabrade 45309 Housing Assembly, Throttle Body
Dynabrade 82489 6" Dia. x 100 Grit A/O Vacuum PSA Filmbac DynaCut Disc, 100/Pack
Dynabrade 79004 1/8" W x 12" L 80 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 52200 .4 hp Straight-Line Die Grinder, Front Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 01794 Rubber Drive Wheel
Dynabrade 96425 Screws For Vacuum Shroud (57737)
Dynabrade 91316 11-1/4" Dia. x 60 Grit A/O Non-Vacuum Hook-Face DynaCut Disc, 10/Box
Dynabrade 59380 Rotor/Vane Set
Dynabrade 10844 DynaPen Reciprocating Tool Filer Kit, 14,000 SPM, 1/8" Collet 
