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.

3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
Standard Abrasives 863198, Quick Change TR A/O Unitized Wheel, 631, 3 in x 1/4 in, 7010330152
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
3M 20230, Scotch-Seal Metal Sealant 2084, Silver, 5 Gallon Drum (Pail), 7000046344
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943
3M 76622, Roloc Disc 777F, 36 YF-weight, TR, 1 in, Die R100N, 7000045618
3M 29859, Sanding Screen, 100 grit, 12 in x 18 in, 7100160861
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M 15913, Scotch-Brite Roloc Disc High Strength, TR, 2 in X NH A Medium, 7000000710
Standard Abrasives 873273, S/C Unitized Wheel, 732, 6 in x 1/4 in x 1/2 in, 7010301203
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 26580, Accuspray ONE Spray Gun System with PPS Series 2.0 Spray Cup System, 7100163226
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
3M 36880, Self-Stick Liquid Protection Fabric, Blue, 36 in x 300 ft, 7100169352
ACS CX1250 Diamond Belts, 1/2" X 24" 200u
3M 62610, Scotch-Weld Threadlocker TL62, Red, 50 mL Bottle, 7100039196, 10/case
Standard Abrasives 708751, PSA A/O Disc, 12 in x NH, 60, 7010370081
3M 19674, Scotch-Seal Industrial Sealant 800, Reddish Brown, 5 oz Tube, 7000000792, 36/Case
3M 86734, Wetordry Finesse-it Paper Disc Roll 401Q, 3000 A-weight, 1-3/8 in x NH, Scallop, Die 143S, 7010327213, 1000 discs per roll
3M 20227, Scotch-Seal Metal Sealant 2084, Silver, 5 oz Tube, 7000046343, 36/Case
3M 21762, Stikit Cloth Disc Roll 341D, 60 X-weight, 6 in x NH, Die 600Z, 7000118780
ACS Diamond Cloth Belt, CX1250 1" X 42" 200U
Standard Abrasives 43247, Zirconia GP Type 27 Flap Disc, 645926, 4-1/2 in x 7/8 in 120, 7010331256
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M 08301, Ultrapro Autobody Sealant, 08301, Tan, 5 oz Tube, 7100142901, 6 per case 
