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🛠️ Seal the deal with marine-grade confidence!
3M Marine Grade Silicone Sealant is a premium, mildew-resistant, and non-yellowing silicone designed specifically for harsh marine environments. It offers long-lasting flexibility and water resistance, bonding effectively to a wide range of materials including wood, metal, glass, and plastics. Packaged in a compact 88ml tube, it’s the trusted choice for professionals seeking durable, high-performance sealing solutions.







| ASIN | B000H8W9V8 |
| Best Sellers Rank | #107,523 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #187 in Silicone Adhesives |
| Brand | 3M |
| Brand Name | 3M |
| Colour | As shown in the image |
| Compatible Material | Wood, Metal, Glass, Plastics, Other Materials |
| Country of Publication | USA |
| Customer Reviews | 4.6 out of 5 stars 1,076 Reviews |
| Included Components | 1 |
| Item Dimensions | 15.2 x 10.2 x 10.2 Centimeters |
| Item Form | Liquid |
| Item Weight | 0.3 Pounds |
| Item dimensions L x W x H | 15.2 x 10.2 x 10.2 Centimeters |
| Manufacturer | 3M |
| Manufacturer Part Number | B000H8W9V8 |
| Material | Silicone |
| Material Type | Silicone |
| Model | MG Sil |
| Number of Items | 1 |
| Style | Compact |
| Style Name | Compact |
| Unit Count | 88 Milliliters |
| Warranty Description | no warranty available |
| Water Resistance Level | Water Resistant |
J**F
Good marine grade silicone
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
Hard to squeeze the product from tube
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.
W**I
As advertised
This product, works completely as advertised. Nothing adheres any better, above or below the Waterline. My only complaint (why I gave value for money only 4 stars) is that they don't make it in any smaller quantities. Often times, you just don't need 3 fl ozs. And once you open the tube, and the air hits the end, you can't put the genie back in the bottle. It's all going to harden, used on the project, or left in the tube :-(
J**S
just the Material I Needed
Strong material ...follow instructions
A**B
BE AWARE!!
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
3 weeks ago
3 weeks ago