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Better Boat

Marine Sealant and Adhesive, Waterproof Marine Grade Caulk, High-Temperature Water Sealant for Boat, Auto, and RV, Silicone-Free, White, 1 Tube, 10 Oz

    • Based on 661 reviews
Condition: New
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$25.99 Why this price?
Save $5.20 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 Monday, Apr 7
Order within 12 hours and 26 minutes
Available payment plans shown during checkout

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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 4.45 x 1.81 inches; 10 ounces


Item model number ‏ : ‎ BB-MRSL-WHT


Date First Available ‏ : ‎ September 30, 2019


Manufacturer ‏ : ‎ Better Boat


Best Sellers Rank: #26,786 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #33 in Silicone Caulk #339 in Industrial Sealants #35,055 in Hardware


#33 in Silicone Caulk:


#339 in Industrial Sealants:


#35,055 in Hardware:


Customer Reviews: 4.4 4.4 out of 5 stars 661 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Apr 7

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
    • Very reliable, if not in stock, it will show up
Color: White
Excellent service
Reviewed in the United States on February 27, 2025 by Henry
    • It works well
Color: White
It’s a good product
Reviewed in the United States on May 21, 2024 by ed j kollman
    • Delivered very quickly
Product was exactly what was needed to address problem with boat
Reviewed in the United States on February 19, 2025 by Jackie Smith
    • 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
    • Good
Good
Reviewed in the United States on February 9, 2025 by HH928
    • 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
    • Sealing leaks
Product was just as expected ! Used it on my boat to make sure seams were sealed , well worth the cost !
Reviewed in the United States on March 8, 2024 by U.P. Yooper

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