---
product_id: 13277246
title: "Leak Stopper Rubber Flexx Liquid Rubber Coating - Seal & Waterproof Protection – for Boats, Roof, Tents, Machinery, Buildings, Interior, Exterior – 1 Quart Black"
brand: "leak stopper"
price: "15.56 OMR"
currency: OMR
in_stock: true
reviews_count: 8
category: "Leak Stopper"
url: https://www.desertcart.com.om/products/13277246-leak-stopper-rubber-flexx-liquid-rubber-coating-seal-and-waterproof
store_origin: OM
region: Oman
---

# flexible rubber formula brush-on easy application 100% waterproof sealant Leak Stopper Rubber Flexx Liquid Rubber Coating - Seal & Waterproof Protection – for Boats, Roof, Tents, Machinery, Buildings, Interior, Exterior – 1 Quart Black

**Brand:** leak stopper
**Price:** 15.56 OMR
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with Leak Stopper – because leaks don’t wait!

## Quick Answers

- **What is this?** Leak Stopper Rubber Flexx Liquid Rubber Coating - Seal & Waterproof Protection – for Boats, Roof, Tents, Machinery, Buildings, Interior, Exterior – 1 Quart Black by leak stopper
- **How much does it cost?** 15.56 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/13277246-leak-stopper-rubber-flexx-liquid-rubber-coating-seal-and-waterproof)

## Best For

- leak stopper enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Application:** Perfect for interior and exterior use on multiple surfaces including machinery and buildings.
- • **Effortless Brush-On Use:** Goopy, brush-applied formula for precise sealing around vents and tricky spots.
- • **Flexible Rubber Technology:** Adapts to surface movement without cracking or peeling, ensuring long-lasting protection.
- • **Ultimate Waterproof Shield:** Creates a durable, watertight barrier for roofs, boats, tents, and more.
- • **Trusted Industrial Strength:** Ranked top 100 in Industrial Coatings with a 4.3-star rating from professionals.

## Overview

Leak Stopper Rubber Flexx is a premium 1-quart liquid rubber coating designed to provide a flexible, waterproof seal on a variety of surfaces including roofs, boats, tents, and machinery. Its brush-on formula ensures precise application, creating a durable protective layer that resists cracking and peeling. Highly rated and industrial-grade, it’s the go-to solution for professionals seeking reliable, long-lasting leak protection.

## Description

Leak Stopper Rubber Flexx Liquid Rubber Coating - Seal & Waterproof Protection – for Boats, Roof, Tents, Machinery, Buildings, Interior, Exterior – 1 Quart Black

Review: Worked great..... - It worked perfectly for my sister's roof repairs that I made around her roof vents etc. it's really goohy and won't be useful using a roller. You'll need a paint brush to apply it.
Review: Roof coating - Good product

## Features

- Leak Stopper Rubber Flexx Liquid Rubber Coating - Seal & Waterproof Protection – for Boats, Roof, Tents, Machinery, Buildings, Interior, Exterior – 1 Quart Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003ZHWMFQ |
| Best Sellers Rank | #64,400 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #86 in Industrial Coatings |
| Brand Name | Leak Stopper |
| Color | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (152) |
| Date First Available | August 13, 2010 |
| Included Components | Leak Stopper Rubber Flexx Liquid |
| Item Dimensions LxWxH | 17.5 x 13 x 6 inches |
| Item Package Dimensions L x W x H | 5.04 x 4.65 x 4.29 inches |
| Manufacturer | Leak Stopper |
| Material | Plastic |
| Model Name | Leak Stopper Rubber Flexx Liquid |
| Number of Items | 1 |
| Package Weight | 0.98 Kilograms |
| Part Number | Gardner-Gibson |
| Size | 1qt |
| Style | Protection |
| Suggested Users | unisex-adult |
| Warranty Description | Warranty |

## Product Details

- **Material:** Rubber
- **Brand:** Leak Stopper
- **Style:** Protection
- **Item dimensions L x W x H:** 17.5 x 13 x 6 inches
- **Compatible Material:** Wood, Metal, Rubber

## Images

![Leak Stopper Rubber Flexx Liquid Rubber Coating - Seal & Waterproof Protection – for Boats, Roof, Tents, Machinery, Buildings, Interior, Exterior – 1 Quart Black - Image 1](https://m.media-amazon.com/images/I/71ceyqD6gQL.jpg)

## Questions & Answers

**Q: how long does it take to fully dry/cure?**
A: Give it 24 hours

**Q: what colors does it come in?**
A: This come only in black.

**Q: Can it be used on a stove pipe?**
A: No

**Q: Does this "dry" or does it stay sticky once applied?**
A: Its like a tar. Will dry eventually. Works well. I reapply after about a year or so.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked great.....
*by L***I on March 25, 2025*

It worked perfectly for my sister's roof repairs that I made around her roof vents etc. it's really goohy and won't be useful using a roller. You'll need a paint brush to apply it.

### ⭐⭐⭐⭐⭐ Roof coating
*by R***N on October 31, 2025*

Good product

### ⭐⭐⭐⭐ Works well, but messy
*by S***V on May 3, 2025*

I used this on near-flat roof flashing between a steep roof and turret intersection. Smells like diesel and or kerosene, so for outdoor use only IMHO. Very messy - must have disposable, durable gloves and disposable putty knife or similar. Okay, so you could clean it up with mineral spirits, but it is very gooey and sticky, which makes it great for hard-to-see flashing/roof applications where water and leaks are a problem. But I'd be hard pressed to use it in a place where aesthetics are important - or with tools and equipment that I wanted to re-use. Definitely fixed the leak where there was a nail penetrating the flashing and water tended to pool. You just need to be prepared with a small drop cloth/cardboard/plastic; mineral spirits if you get it on your skin or someplace you don't want it; and the willingness to dispose of any equipment it touches. I re-sealed it and it kept well for 6 months when I used the remainder.

## Frequently Bought Together

- Leak Stopper Rubber Flexx Liquid Rubber Coating - Seal & Waterproof Protection – for Boats, Roof, Tents, Machinery, Buildings, Interior, Exterior – 1 Quart Black
- Red Devil 4718 3-Piece Plastic Putty Knife Set, Scraper Tool, Spackle & Paint, 1-Pack
- Saint-Gobain FibaTape ADFORS Roof Repair Fabric - 6 inches x 25 feet - Black

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**Shop now:** [https://www.desertcart.com.om/products/13277246-leak-stopper-rubber-flexx-liquid-rubber-coating-seal-and-waterproof](https://www.desertcart.com.om/products/13277246-leak-stopper-rubber-flexx-liquid-rubber-coating-seal-and-waterproof)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-10*