---
product_id: 469106591
title: "Marine Sealant and Adhesive, Waterproof Marine Grade Caulk, High Temp Water Sealant for Boat, Auto, RV, Without Silicone - 1 Tube, Black, 10 oz"
brand: "better boat"
price: "303 Lei"
currency: RON
in_stock: true
reviews_count: 13
url: https://www.desertcart.ro/products/469106591-marine-sealant-and-adhesive-waterproof-marine-grade-caulk-high-temp
store_origin: RO
region: Romania
---

# Marine Grade Waterproof Multi-Surface Marine Sealant and Adhesive, Waterproof Marine Grade Caulk, High Temp Water Sealant for Boat, Auto, RV, Without Silicone - 1 Tube, Black, 10 oz

**Brand:** better boat
**Price:** 303 Lei
**Availability:** ✅ In Stock

## Summary

> 🚤 Seal Your Adventure with Confidence!

## Quick Answers

- **What is this?** Marine Sealant and Adhesive, Waterproof Marine Grade Caulk, High Temp Water Sealant for Boat, Auto, RV, Without Silicone - 1 Tube, Black, 10 oz by better boat
- **How much does it cost?** 303 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/469106591-marine-sealant-and-adhesive-waterproof-marine-grade-caulk-high-temp)

## Best For

- better boat enthusiasts

## Why This Product

- Trusted better boat brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seal the Deal:** Heavy-duty elastomeric sealant for superior strength above & below waterline.
- • **Proudly American:** Crafted by boaters for boaters, ensuring exceptional quality and performance.
- • **Fast & Functional:** Quick cure formula that can be sanded and painted, unlike traditional silicone.
- • **Versatile Adhesion:** Adheres to fiberglass, glass, plastic, metal, and wood for all your repair needs.
- • **Flexibility Meets Durability:** Remains flexible, expanding and contracting with weather conditions.

## Overview

This Marine Sealant and Adhesive is a high-performance, waterproof caulk designed for boat, auto, and RV applications. With a 10oz tube of black sealant, it offers superior strength and flexibility, making it ideal for repairing seams and stopping leaks in various conditions. Made in the USA, this product is perfect for those who demand quality and reliability in their marine repairs.

## Description

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

## 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 black 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.

## Images

![Marine Sealant and Adhesive, Waterproof Marine Grade Caulk, High Temp Water Sealant for Boat, Auto, RV, Without Silicone - 1 Tube, Black, 10 oz - Image 1](https://m.media-amazon.com/images/I/81qY7VYnRBL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: What color is this when cured?**
A: This is white.  Hope that helps and thanks for your interest in our marine sealant.

**Q: can I use this to repair a crack in my hot tub? Is it safe for continual underwater use?**
A: Yes it is safe for continued underwater use but you will want to make sure it completely cures and dries prior to submerging it.  Hope that helps and thanks for your interest in Better Boat

**Q: How many Ounces is in a container**
A: Don’t have it in front of me, but it is the size of a normal tube of caulk and will fit into a standard caulk gun.

**Q: Will this work around my stainless steel fuel tank filler neck**
A: Yes our marine sealant will absolutely seal and adhere to your stainless steel neck. Thanks so much for your interest in our marine sealant.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    This really works!
  

*by E***E on Reviewed in the United States on September 9, 2024*

I needed to seal the joints on a leaking stock tank. I've tried other products and nothing every worked.. This is working well.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Good stuff
  

*by D***  on Reviewed in the United States on October 2, 2024*

Good for sealing rv roof seams, will buy again.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Leaky boat
  

*by C***Y on Reviewed in the United States on May 31, 2024*

Works well on my 10ft. “Tiny Tanic”;

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**Shop now:** [https://www.desertcart.ro/products/469106591-marine-sealant-and-adhesive-waterproof-marine-grade-caulk-high-temp](https://www.desertcart.ro/products/469106591-marine-sealant-and-adhesive-waterproof-marine-grade-caulk-high-temp)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-07*