---
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: "S$49"
currency: SGD
in_stock: true
category: "Leak Stopper"
url: https://www.desertcart.sg/products/13277246-leak-stopper-rubber-flexx-liquid-rubber-coating-seal-and-waterproof
store_origin: SG
region: Singapore
---

# Sleek Black Finish Multi-Surface Compatibility Waterproof Sealant Power 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:** S$49
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it, shield it, own it — waterproof protection that means business!

## 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?** S$49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/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 Surface Mastery:** Seamlessly bonds to metal, wood, rubber—interior or exterior applications.
- • **Flexible & Durable Coating:** Expands and contracts with surfaces to prevent cracks and leaks.
- • **Ultimate Waterproof Shield:** Protect boats, roofs, tents & more with a durable liquid rubber barrier.
- • **Professional Grade Protection:** Trusted by industrial pros with a 4.4-star rating and top 100 rank in coatings.
- • **Easy Application, Long-Lasting:** One quart covers large areas with a smooth, resilient finish that stands the test of time.

## Overview

Leak Stopper Rubber Flexx is a premium liquid rubber coating designed to provide a flexible, waterproof seal on a variety of surfaces including boats, roofs, tents, machinery, and buildings. Its black, durable formula adheres to metal, wood, and rubber, offering long-lasting protection against leaks and weather damage for both interior and exterior use.

## Description

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

## 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 | #64,035 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #92 in Industrial Coatings |
| Brand Name | Leak Stopper |
| Color | Black |
| Compatible Material | Metal, Rubber, Wood |
| Customer Reviews | 4.4 4.4 out of 5 stars (181) |
| Included Components | Leak Stopper Rubber Flexx Liquid |
| Item Dimensions | 17.5 x 13 x 6 inches |
| Item Form | Liquid |
| Item Type Name | Leak Stopper Rubber Flexx Liquid Rubber Coating - Seal & Waterproof Protection – for Boats, Roof, Tents, Machinery, Buildings, Interior, Exterior – 1 Quart Black |
| Manufacturer | Leak Stopper |
| Material Type | Plastic |
| Model | Gardner-Gibson |
| Number of Items | 1 |
| Part Number | Gardner-Gibson |
| Style Name | Protection |
| Surface Recommendation | Walls,Roof |
| UPC | 025056031808 |
| Unit Count | 12 Count |
| Warranty Description | Warranty |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Leak Stopper
- **Item dimensions L x W x H:** 17.5 x 13 x 6 inches
- **Material:** Plastic
- **Style:** Protection
- **Water Resistance Level:** Waterproof

## 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.

## Frequently Bought Together

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

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-08-30*