






🛠️ Seal like a pro, sail with confidence!
3M Marine Grade Silicone Sealant (304 mL) is a high-performance, clear silicone designed specifically for demanding marine environments. Its moisture-curing, non-yellowing formula adheres to a wide range of surfaces, providing a flexible, durable seal above the waterline that resists sagging and UV damage. Ideal for professional use, it ensures long-lasting protection and a flawless finish on boats and marine equipment.






































| ASIN | B000H83M4G |
| Best Sellers Rank | #8,712 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #25 in Silicone Adhesives |
| Brand | 3M |
| Color | Clear |
| Date First Available | January 18, 2007 |
| Global Trade Identification Number | 00051135080290 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 8 ounces |
| Item dimensions L x W x H | 2 x 2 x 12 inches |
| Item model number | 08029 |
| Manufacturer | 3M |
| Material | Specialized silicone or synthetic rubber compound |
| Number of Items | 1 |
| Product Dimensions | 2 x 2 x 12 inches |
| Style | 10.3 fl oz |
| Surface Recommendation | Floors,Walls,Wood |
| UPC | 051135080290 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
R**R
Great product!
Great product!
A**S
Great product! Works great! Highly recommend!
Great product! Works great! Highly recommend!
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.
D**E
3M marine grade silicone
Great stuff for my boat on installing new equipment
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.
J**S
just the Material I Needed
Strong material ...follow instructions
J**T
Good product
Good stuff
J**R
As expected, 3M is the best
You can never ho wrong with a 3M product
Trustpilot
1 month ago
2 weeks ago