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 15420 Dynafile III Abrasive Belt Tool
Norton 66261014921 - 2" X 1/8" 50 - 80 Grit Coarse Grade Aluminum Oxide Bear-Tex Speed-Lok Rapid Blend Gray TR Non-Woven Unified Wheel, 60 Each
ACS Diamond Cloth Belt, CX1250 3" X 30" 125U
Standard Abrasives 32920, PSA A/O Disc, 708027, 6 in x NH, 120, 7100083004
3M 30088, High Performance Industrial Plastic Adhesive 4693H, Light Amber, 5 oz Tube, 7000028594, 36/case
3M 26312, PPS Series 2.0 Spray Cup System Kit, Midi (13.5 oz, 400 mL),
125 Micron Filter, 7100169346
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
3M 37301, Versaflo Painter`s Hood Assembly with Inner Shroud & Premium Head Suspension S-757, 7000052768, 1 EA/Case
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 66757, Combat Arms 4th Generation Probed Test Plugs, Small, 50 Pairs/Box, 393-2018S-50, 7010316609
3M 15938 Scotch-Brite Surface Conditioning Low Stretch Belt, SC-BL, A/O Medium, 1-1/2 in x 60 in, 7010300824
3M 76624, Roloc Disc 777F, 60 YF-weight, TR, 1 in, Die R100N, 7000045620
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
Norton 66261199696 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 7AM U2305, 40 Each
Dynabrade 64219 - 5" Dia. Caster, Rigid
Dynabrade 51702 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 3/32" Collet
Dynabrade 51811 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 1/16" Collet
3M 98242, Marine Adhesive Sealant 3000 UV, Black, 290 mL Cartridge, 7100111111, 12/Case
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 16028, PPS Lid & Liner Kit, Micro (3 fl oz), 200 Micron Full
Diameter Filter, 50 Lids & Liners per kit, 7000045465
Dynabrade 95674 1/4" Female Coupler
3M 16312, PPS Lid & Liner Kit, Midi (13.5 fl oz), 125 Full Diameter
Micron Filter, 50 Lids & Liners per kit, 7100018936
3M 99633, Scotch-Weld Pressure Fit/High Temperature Retaining Compound RT48, Green, 250 mL Bottle, 7100170130, 2/case
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case 
