





🛥️ Seal the deal with 3M’s marine-grade magic – because your gear deserves the best!
3M Marine Grade Silicone Sealant is a premium, mildew-resistant, and non-yellowing silicone designed specifically for the demanding marine environment. It offers long-lasting flexibility and water resistance, ensuring durable, clean seals on boats, campers, and outdoor equipment. Packaged in a convenient 3 oz tube, it prevents curing inside the container for easy use and minimal waste.






































| ASIN | B000H8W9V8 |
| Are batteries included? | No |
| Best Sellers Rank | #137,198 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #222 in Silicone Adhesives |
| Brand | 3M |
| Colour | As shown in the image |
| Country of Origin | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,064) |
| Date First Available | 6 August 2012 |
| Included Components | 1 |
| Item Dimensions LxWxH | 15.2 x 10.2 x 10.2 Centimeters |
| Item Form | Liquid |
| Item Height | 4 Inches |
| Item Weight | 59 g |
| Item Width | 4 Inches |
| Item dimensions L x W x H | 15.2 x 10.2 x 10.2 Centimeters |
| Item model number | MG Sil |
| Manufacturer | 3M |
| Material | Silicone |
| Model number | MG Sil |
| Net Quantity | 88 Milliliters |
| Number of Items | 1 |
| Product Dimensions | 15.24 x 10.16 x 10.16 cm; 58.97 g |
| Style | Compact |
| Water Resistance Level | Water Resistant |
J**F
Needed some marine grade silicone for some fittings on my camper and this worked perfectly. Put the cap on after you're done and the product doesn't cure in the tube and become a solid mess like some other products. The only thing which doesn't work well is the threaded screw-on dispenser cap. The thread will strip with too much lateral pressure, which always happens to me. Also, do yourself a favor and purchase one of those metal tube keys that help you squish material out of a metal tube. It will save your fingers from exessive squishing, lol.
P**W
If it does everything it claims it’s a great product. But….its hard to work with. It starts getting hard after about 5 minutes of opening it. Cut your hole large to help with the squeezing.
J**S
Strong material ...follow instructions
J**T
Good stuff
A**B
Writing this prior to using the product because when I read the directions, it said that the complete contents have to be used within 24 hours of opening the tube. What I had hoped for was an adhesive I could keep on hand and repair trim pieces inside our Airstream. Ridiculous that it has to all be used within 24 hours.
Trustpilot
2 months ago
2 weeks ago