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 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 34672, 641WY, 1/2" X 64", 100 Mesh, Diamond Cloth Belts 7100111364
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
Dynabrade 51301 .5 hp Straight-Line Die Grinder
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943
3M 04726, Adhesive Transfer Tape Extended Liner 920XL, Translucent, 1/2 in x 1000 yd, 1 mil, 7000048424
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 62604, Scotch-Weld Threadlocker TL42, Blue, 1 mL Pipette, 7100064043, 100/case
ACS CX1250 Diamond Belts, 1/2" X 24" 45u
3M Finesse-it Microfinishing Film Disc Roll 268L, 1-7/16 in x NH 7 Micron Scalloped, 7100040582
3M 26024, PPS Series 2.0 Spray Cup System Kit, Large (28 fl oz, 850mL), 200 Micron Filter, 7100134650
3M 76630, Roloc Disc 777F, 50 YF-weight, TR, 2 in, Die R200P, 7000045627
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
Dynabrade 92209 1/8" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle,Straight, 7000031879
3M 03647, Scotch-Brite Edger Disc Pad, 7 in x .875 in, 7000133920
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Norton 66254497067 - 2" X 1/4" 100 - 150 Grit Medium Grade Aluminum Oxide Vortex Rapid Blend Blue TR Non-Woven Abrasive Disc, 25 Each
3M 20227, Scotch-Seal Metal Sealant 2084, Silver, 5 oz Tube, 7000046343, 36/Case
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 35790, 675L, 1" X 120", 74u, Diamond Microfinishing Film Belts, 7010509196
Standard Abrasives 53300, Zirconia HP Type 27 HD Flap Disc, 645948, 4-1/2 in x 7/8 in 40, 7010330743
3M 76790, Roloc Disc 361F, 60 YF-weight, TS, 2 in, Die RS200P, 7010300088
Dynabrade 95544 Gear Grease, 2.5oz. Tube
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
3M 66165, Wind Protection Tape Edge Sealer W2600, 50 ml (1.7 fluid ounce), 7100008766, 12/Case 
