

⚓ Seal like a pro, stay leak-free like a legend!
3M Marine Adhesive Sealant delivers a tough, flexible polyurethane bond that’s been the go-to choice for marine professionals for over 50 years. Designed for permanent sealing above and below the waterline, it offers extended working time and reaches handling strength in 48 hours, ensuring reliable, long-lasting protection for your vessel.

| ASIN | B00AZA3DY0 |
| ASIN | B00AZA3DY0 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #84,322 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #458 in Hardware Sealers |
| Color | No Color |
| Customer Reviews | 4.0 4.0 out of 5 stars (357) |
| Customer reviews | 4.0 4.0 out of 5 stars (357) |
| Date First Available | 11 March 2016 |
| Date First Available | 11 March 2016 |
| Department | unisex-adult |
| Included components | 3M 7000000623 Marine Adhesive Sealant - 10 oz., White |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 408 g |
| Item model number | 7000000623 |
| Item model number | 7000000623 |
| Manufacturer | 3M |
| Manufacturer | 3M |
| Material | Polyurethane |
| Part number | 7000000623 |
| Product Dimensions | 30.99 x 4.57 x 4.32 cm; 408.23 g |
| Product Dimensions | 30.99 x 4.57 x 4.32 cm; 408.23 g |
| Size | 10 Fl Oz (Pack of 1) |
| Special Features | Strong |
| Specific uses | Marine |
A**R
Good permanent sealant - takes a day or so to harden but great stuff
I**V
This Marine Adhesive Sealant has good adhesion and feels strong. So far did not fell apart under water.
D**R
Great product if I had an applicator. As other reviewers have noted, received sealant without applicator nozzle so I am unable to use. I figured maybe seller would have corrected this problem but I figured wrong. Tube is in good shape though. MFG date 01/29/24. "Free" returns means a 70 mi round trip to nearest UPS store.
J**K
Folks, if you have something that needs to be waterproof and almost permanently attached, this is the stuff! I worked for years in the boat business, and this is a "can't live without it" kind of product. It sets up and cures underwater and is immediately waterproof. The adhesiveness of this product can't be over-stated; don't stick it if you plan to move the item later. I've patched seats. convertible tops, and mounted thru-hull fittings WHILE IN THE WATER. It can be removed but it won't be easy. No, its not cheap but it does exactly what it says, and the peace of mind is well worth the price.
T**.
Worked great for my boat, definitely worth the price to know it’s sealed correctly.
Trustpilot
1 month ago
1 week ago