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.

Insize 4190-17H32, CERAMIC STANDARD BALLS, 17/32", 6940561969788
Dynabrade 82429 5" Dia. x 100 Grit A/O Hook Non-Vacuum Film-Backed DynaCut Disc, 100/Box
Dynabrade 78709 3/8" x 3/4"-B52 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 82564 1/4" W x 18" L 120 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 78488 3" Dia. x 1-1/2", 1/4-20 Female Center Thread, A/O, 180 Grit, 10-Ply J-DynaCut Cross Pad, 100/pack
Dynabrade 01548 Gasket
Dynabrade 79032 1/2" W x 18" L 80 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 94892 25' Max Flow 5/16" I.D. Air Hose Assembly, Female (1/4") / Male (1/4") Fitting Ends Included
Dynabrade 52440 Drop-In Motor
Dynabrade 15336 Rubber Drive Wheel
Dynabrade 92847 3" Dia. x 2-1/4" W Standard Dynacushion Pneumatic Wheel
Dynabrade 01427 Drop-In Motor 
