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 11254 Contact Arm Ass'y, 4-3/4" Dia. x 1/2" W
3M 76625, Roloc Disc 777F, 80 YF-weight, TR, 1 in, Die R100N, 7000045621
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Dynabrade 51301 .5 hp Straight-Line Die Grinder
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 80751, Scotch Super Glue Liquid AD114, 4-Pack of Single-Use Tubes, .017 oz, 7000047643
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 62607, Scotch-Weld Threadlocker TL42, Blue, 250 mL Bottle, 7100039192, 2/case
3M 16325, PPS Lid & Liner Kit, Large (28 fl oz), 125 Micron Full
Diameter Filter, 25 Lids & Liners per kit, 7100003284
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 29842, Sanding Screen, 180 Grit, 16 in x NH, 7100160822
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 16578, Accuspray ONE Spray Gun Kit, 7100096182
Dynabrade 94993 1/4" Male Composite-Style Coupler with 1/4" Female Plug Assembly
3M 14343, Marine Adhesive Sealant 4000 UV, Black, 600 mL Sausage Pack, 7010309931, 12/Case
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 20279, Disc Pad Holder 947TH, 7 in x 1 in x 5/8-11 Internal Black T Hook, 7000118602
3M 92768, Heavy Duty Stripping Tool 10110NA-PT, 3 Coarse, One, Open Stock, 3.375 in. x 5 in. Handle and Pad, 7010292604
ACS CX1250 Diamond Belts, 1/2" X 24" 45u
Dynabrade 15420 Dynafile III Abrasive Belt Tool
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
3M 04229, Scotch-Brite Hand Pad 7447B, HP-HP, A/O Very Fine, 6 in x 9 in, 7000027560, 60 ea/Case
3M 08374, MSP Sprayable Seam Sealer, Gray, 10.5 FL OZ Cartridge, 7000148239, 6 per case
Standard Abrasives 725004, Buff and Blend Cross Buff GP, A/O Coarse, 1-1/2 in x 1/2 in x 2 Ply x 8-32, 7000047136
3M 26583, Accuspray Refill Pack for PPS Series 2.0, Green, 1.3 mm, 7100152953
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Dynabrade 92585 3-1/2" Dia. x Medium Hook-Face Surface Conditioning DynaBrite Disc, 10/pack
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
Dynabrade 78423 4-1/2" Dia. x 3/8" Very Fine DynaBrite Surface Conditioning Disc, 25/pack
3M 87147, PSA Cloth Disc 777F, 5 x NH, 36 YF-weightt, 7010308524
3M 29848, Sanding Screen, 180 Grit, 15 in x NH, 7100160815
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
Dynabrade 95677 1/4" Male Plug with 1/4" NPT Female Thread
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 98907, 3M Hand Tape Applicator 25 mm, 1 per case, 7010376216
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 00570, DynatronAuto Seam Sealer Caulk, 570, White, 12 oz, 7000125070, 12 per case 
