Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.
⚓ Seal your adventure with confidence—marine-grade strength that lasts!
3M Marine Grade Silicone Sealant (08019) is a clear, 3 fl oz tube of professional-grade, moisture-curing silicone designed specifically for above-waterline sealing on boats and RVs. It offers fast curing in 24 hours, exceptional flexibility, and long-lasting water resistance without yellowing, bonding effectively to a wide range of materials including metal, glass, fiberglass, and wood. Ideal for marine environments, it ensures durable, watertight seals that keep your watercraft looking pristine.
| ASIN | B000H8W9V8 |
| Best Sellers Rank | #3,483 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Silicone Adhesives |
| Brand | 3M |
| Brand Name | 3M |
| Color | Clear |
| Compatible Material | Concrete |
| Customer Reviews | 4.7 out of 5 stars 1,883 Reviews |
| Included Components | 3M 08019 Marine Grade Silicone Sealant, 3 oz, Clear |
| Item Dimensions | 6 x 4 x 4 inches |
| Item Form | Liquid |
| Item Type Name | 3M Marine Grade Silicone Sealant, 08019, For Boats and RVs, Above the Waterline Interior/Exterior Sealing, Moisture Curing, Clear, 3 fl oz Tube |
| Item Weight | 4.8 ounces |
| Item dimensions L x W x H | 6 x 4 x 4 inches |
| Manufacturer | 3M |
| Material | Plastic |
| Material Type | Plastic |
| Model | MG Sil |
| Number of Items | 1 |
| Part Number | B000H8W9V8 |
| Style | 3 fl oz (Tube) |
| Style Name | 3 fl oz (Tube) |
| Surface Recommendation | Wall |
| Unit Count | 3.0 Fluid Ounces |
| Water Resistance Level | Water Repellent |
M**C
great sealant, holds up on the water
Used this for sealing some fittings on my boat and it worked exactly as expected, no leaks at all and it's held up through sun and water exposure without cracking or pulling away. The cap seals well so the tube doesn't cure between uses which is a huge deal with silicone products since they can dry out fast. Only minor thing is the dispenser cap threads can be a little finicky if you push sideways on them but that's pretty minor overall. Solid marine silicone from a brand you can trust and I'd buy it again.
R**R
Great product!
Great product!
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.
A**S
Great product! Works great! Highly recommend!
Great product! Works great! Highly recommend!
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.
D**E
3M marine grade silicone
Great stuff for my boat on installing new equipment
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
Trustpilot
3 weeks ago
2 days ago