Marine Sealant and Adhesive, Waterproof Marine Grade Caulk, High Temp Water Sealant for Boat, Auto, RV, Without Silicone - 1 Tube, White, 10 oz
Condition: New
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Availability:
In Stock.
Arrives
Sunday, Nov 9
Color: White
Features
- HEAVY-DUTY ELASTOMERIC SEALANT: Waterproof long-lasting superior strength above & below waterline to repair seams and stop leaks. Seal ports, wind-shields and more. Remains Flexible and can twist, bend, expand and contract with weather conditions.
- FLEXIBLE PERMANENT BOND UV LIGHT AND SALTWATER RESISTANT: One-part sealant that forms a tough yet flexible permanent bond resistant to sunlight, rain, fresh & salt-water. Fast cure formula cures white then can be sanded and painted unlike silicone.
- SEALS & ADHERES TO MULTIPLE SURFACES: Marine Adhesive works with fiberglass, glass, plastic, metal & wood. Safely and securely repairs windshields, joints, hardware, aluminum boats, pool decks, aquarium sealent , pool caulking , RV and Auto repairs.
- MADE IN THE USA & EXCEPTIONAL QUALITY: Made by boaters for boaters, our waterproof sealant and other products are made to strict, tested, trade-secret standards and you will find this premium marine sealant is no exception.
- WHY BETTER BOAT: An American company with a line of premium quality boat detailing supplies. We offer the tools and products needed to make caring for your boat easier so you can spend more time on the water.
Color: White
Brand: Better Boat
Item Weight: 10 Ounces
Liquid Volume: 1E+1 Fluid Ounces
Item Form: Liquid
Package Dimensions : 11.5 x 1.9 x 1.9 inches; 10 ounces
Item model number : BB-MRSL-WHT
Date First Available : September 30, 2019
Manufacturer : Better Boat
Best Sellers Rank: #70,772 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #77 in Silicone Caulk #592 in Industrial Sealants #61,470 in Hardware
#77 in Silicone Caulk:
#592 in Industrial Sealants:
#61,470 in Hardware:
Customer Reviews: 4.3 4.3 out of 5 stars 684 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Nov 9
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: Clear
Very nice and so far working great Only negative is the applying tube was bent about 45 degrees. Package was not damaged at all. I bent it back straight and was able to use
Reviewed in the United States on September 14, 2025 by Larry W Summitt
Color: White
It worked for me
Reviewed in the United States on September 7, 2025 by Roy Robertson
Color: Black
This sealant does work very well! Just be sure to give it time to cure!!! I did not give it enough time the first use “8days” and so my seal failed… ya live and ya learn!..
Reviewed in the United States on August 24, 2023 by Michael k.
Color: White
I should send it all BACK. First off, the design of the tube is ridiculous. Try as I might, I couldn't get it to fit a standard caulking gun. Never in my life have I EVER had trouble with any other product not immediately fitting a caulking gun. It should drop in at once with NO hassle and be ready to use. NOT THIS STUFF! It was a complete and expensive waste costing 20 bucks a tube. I'm going to back to DICOR and other products I've used for years when resealing my two camping trailers. I threw this junk into a box in my shed where it'll likely remain for the rest of my life. I don't give a damn how good the product's supposed to be when you can't even get the damned tube into a caulking gun! Buyer beware. If there were a way to rate this stuff as a -50, I'd damn well DO IT. Save your money and your sanity and stick with the far better known and much easier to use other products that have been around for years long than this crap. If they can't even design a standard, ready to use tube, I wouldn't put much faith in the product, either.
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Reviewed in the United States on August 17, 2021 by Ken
Color: Gray
i don't know what people are crying about .. its sealant and works great flow is nice , tapeoff your areas where you dont want sealant , flaten it out with your finger and pull the tape off after ... plus it comes in colors i used grey
Reviewed in the United States on November 16, 2024 by joel
Color: Clear
It worked good for my application (garage siding contact with my concrete). Applied easily and good sealing. It skinned over in about 30 minutes to an hour so I had time to work with it but it takes 7 to 10 days to cure depending on temperature, humidity and quantity used and customer service said that a 100 percent cure may take up to 30 days. It did get relatively hard in 5 days and did repel rain after it skinned over. I wanted a clear caulk/sealant and I would use it again where cure times are not critical. The end cap ring on a few tubes was oversized - so it was a tight fit getting it in and out of the caulking gun and the end cap ring came off when I took the tube out of the caulking gun - I had to pry the end cap ring out of the caulking gun which wasn't too hard to do but with the end cap ring off now it would be easier to get the tube back into the caulking gun next time and it didn't affect the operation of the tube.
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Reviewed in the United States on September 25, 2022 by Dan Ullberg
Color: Gray
Very nice stuff to work with , high quality. At first I was thinking it was a little expensive, but after using it I can see why it was a little more than the other guys . Very nice stuff people, keep up the good work !! Oh yeah and it’s made in the USA.
Reviewed in the United States on January 6, 2024 by Inch
Color: Gray
We used this product to caulk a keel guard in. It never went on smooth in the first place. Plus the boat was a total rebuild so it's still being redone and five months later it's peeling off yet it's never been in any sort of water. 100% waste of money. Buy life seal and don't worry about matching the color.
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Reviewed in the United States on September 4, 2025 by Amy Amy