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Better Boat

Marine Sealant and Adhesive Waterproof Marine Grade Sealant Caulk High Temp Caulking Water Sealant for Boat Auto and RV Without Silicone - 1 Tube White 10oz

    • Based on 646 reviews
Condition: New
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$25.99 Why this price?
Holiday Deal · 17% off was $31.19

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Non-returnable. Transportation of this item is subject to hazardous materials regulation

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Dec 24
Order within 7 hours and 45 minutes
Available payment plans shown during checkout

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 ‏ : ‎ 11.22 x 1.93 x 1.89 inches; 10 ounces


Item model number ‏ : ‎ BB-MRSL-WHT


Date First Available ‏ : ‎ September 30, 2019


Manufacturer ‏ : ‎ Better Boat


Best Sellers Rank: #47,125 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #50 in Silicone Caulk #356 in Industrial Sealants #41,828 in Hardware


#50 in Silicone Caulk:


#356 in Industrial Sealants:


#41,828 in Hardware:


Customer Reviews: 4.4 4.4 out of 5 stars 646 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 24

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • works great
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
    • Good stuff
Color: Clear
Good for sealing rv roof seams, will buy again.
Reviewed in the United States on October 2, 2024 by david
    • Leaky boat
Color: White
Works well on my 10ft. “Tiny Tanic”;
Reviewed in the United States on May 31, 2024 by charles murray
    • This really works!
Color: White
I needed to seal the joints on a leaking stock tank. I've tried other products and nothing every worked.. This is working well.
Reviewed in the United States on September 9, 2024 by ernie
    • Marine glue
Color: Gray
So far so good easy to apply . Working time about 15 mins.
Reviewed in the United States on July 18, 2024 by steve
    • Quality product
Color: Clear
The quality was there but the add was mis leading it shows 5 tubes in the picture but you get one,didn’t like the price for 1 tube.
Reviewed in the United States on July 26, 2024 by Kenneth Blanton
    • For The Cost, I'm NOT Impressed!
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. ... show more
Reviewed in the United States on August 17, 2021 by Ken
    • Waste of money
Color: Gray
Should have paid closer attention to the reviews. Stem came out with only a small amount of side pressure. Waste of money.
Reviewed in the United States on July 19, 2024 by John J Scott

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