---
product_id: 30925555
title: "Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon"
brand: "liquid rubber"
price: "R14194"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Liquid Rubber"
url: https://www.desertcart.co.za/products/30925555-liquid-rubber-waterproof-sealant-diy-leak-repair-coating-for-flat
store_origin: ZA
region: South Africa
---

# UV resistant & weatherproof for long-term durability 950% elongation for ultimate flexibility Covers up to 30 sq ft per gallon on vertical surfaces Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon

**Brand:** liquid rubber
**Price:** R14194
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal the deal with Liquid Rubber — where durability meets flexibility!

## Quick Answers

- **What is this?** Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon by liquid rubber
- **How much does it cost?** R14194 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/30925555-liquid-rubber-waterproof-sealant-diy-leak-repair-coating-for-flat)

## Best For

- liquid rubber enthusiasts

## Why This Product

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

## Key Features

- • **Flex & Resist:** Withstands building movement and temperature swings without cracking or peeling—perfect for dynamic structures.
- • **Eco-Smart Formula:** Water-based, VOC-free, odorless sealant safe for indoor/outdoor use and sensitive materials.
- • **Pro-Level Coverage:** Brush, roll, or spray application with precise coverage specs for flat roofs, gutters, and foundations.
- • **Trusted by Pros & DIYers:** Millions of gallons sold—join the community of savvy property managers and contractors who rely on Liquid Rubber.
- • **Seamless Waterproof Shield:** Industrial-strength bitumen formula creates a durable, flexible membrane that outperforms traditional tar.

## Overview

Liquid Rubber Waterproof Sealant is a premium, water-based bitumen coating designed for flat, metal, and low slope roofs, foundations, and gutters. Offering over 950% elongation, superior adhesion, and UV resistance, it forms a flexible, seamless membrane that resists cracking and water infiltration. Ideal for both professional contractors and DIYers, this 5-gallon kit covers up to 30 sq ft per gallon on vertical surfaces and is VOC-free for safe indoor/outdoor use.

## Description

Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon - desertcart.com

Review: Tough, Reliable sealant - If you want a sealant that can handle high water temperature and last the test of time, you found it. I used this to seal my homemade solar water heater tank back in early 2022. Today it still hasn't leaked although the tank has reached 130 degrees in summer. Four years of abuse and still reliable is a solid proof of its quality.
Review: Worked for Me but one minor complaint - I did give it a 5 despite one issue- The positive first - Had a leaky flat roof (slightly racked) over my garage - Was going to have it done professionally for over $5000 ish. To replace the existing membrane. Well Liquid Rubber has a help line email so I asked them if this product would work well - and gave them details of my roof etc. - I got an immediate response and then ordered 10 gallons, based on the surface area etc. This was my bad - but to do I believe the recommended 5 coats it took about 6 gallons - since this stuff is bit pricey I could have ordered 5 gallons and 1 gallon and saved $. Good news is the roof did not leak anymore, and looked good. Here was the complaint- I had left a black rubber garden hose on top of the garage months after applying the sealant- maybe it was up there in the middle of August for 3 weeks- Well when I went to remove the hose it was stuck to the roof - It was not that hard to pry it away but it actually left kind of a stain on the roof. So my bad for leaving the hose there but I did not expect that. I have to check but I will have to do this again at some point-

## Features

- INDUSTRIAL STRENGTH BITUMEN FORMULA - Create a seamless waterproof membrane on flat roofs, metal roofs, low slope roofs, foundations, gutters, concrete surfaces, planter boxes, and more. Our premium liquid rubber forms a durable barrier against water infiltration where other sealants fail. Superior alternative to traditional roof tar or patch products
- SUPERIOR FLEXIBILITY & DURABILITY - With over 950% elongation, this waterproof sealant maintains adhesion even with building movement and temperature changes. Our sealant is designed to resist cracking, peeling, and UV damage. Creates a flexible rubberized coating that delivers long-lasting protection
- PROFESSIONAL COVERAGE SPECIFICATIONS - Brush, roll or spray on - For flat/low slope roofs & standing water surfaces: 1 gallon covers 15 sq ft (3-4 heavy coats to achieve 60-80 mil membrane). For vertical surfaces like foundations: 1 gallon covers 30 sq ft (2-3 heavy coats for 30 mil membrane). Ideal for both roof repair and preventative maintenance applications
- WATER-BASED ADVANCED FORMULA - Unlike harsh roof tar or solvent-based products, our water-based formula contains no VOCs or harmful odors, making it perfect for indoor and outdoor use. Doesn't damage foam insulation or sensitive materials. Perfect for waterproofing projects in confined spaces
- ENGINEERED WATERPROOFING SYSTEM - For maximum protection, use with Liquid Rubber Seam Tape or Geo-Textile to bridge joints, seams, vents, skylights, and protrusions where movement may occur. Creates a comprehensive waterproofing system for long-lasting leak repair and prevention on your roof, basement, or foundation
- USED BY PROFESSIONALS & DIYers ALIKE - With millions of gallons sold, Liquid Rubber is the go-to choice for contractors, property managers, and homeowners tackling projects from roof leak fixes to basement waterproofing. Our high-performance formula delivers professional results whether you're an experienced pro or a first-time DIYer
- PREMIUM ADHESION TECHNOLOGY - Superior adhesion to most building materials including metal, concrete, wood, and more. This hardware sealer can remain tacky after curing - NOT suitable for walking surfaces such as walkways, patios or decks. Use for waterproofing applications where foot traffic where foot traffic is minimal or not needed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00YYKJDEQ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #10,044 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 in Hardware Sealers |
| Brand | Liquid Rubber |
| Color | Original Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,996) |
| Date First Available | April 21, 2016 |
| Included Components | 5 Gallon |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 44 pounds |
| Item dimensions L x W x H | 12 x 12 x 16 inches |
| Item model number | 22602 |
| Manufacturer | Liquid Rubber USA |
| Material | Polymer |
| Number of Handles | 1 |
| Number of Items | 1 |
| Part Number | 22602 |
| Product Dimensions | 12 x 12 x 16 inches |
| Size | 5 Gallon |
| Special Features | Waterproof |
| Style | 5 Gallon |
| Surface Recommendation | Roof, Vent |
| UPC | 628421226023 |
| Unit Count | 640 Fluid Ounces |
| Usage | Commercial/Residential |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Liquid Rubber
- **Item Weight:** 44 Pounds
- **Item dimensions L x W x H:** 12 x 12 x 16 inches
- **Material:** Polymer
- **Style:** 5 Gallon

## Images

![Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon - Image 1](https://m.media-amazon.com/images/I/61v0Gb8OTWL.jpg)
![Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon - Image 2](https://m.media-amazon.com/images/I/71W8eXNuD3L.jpg)
![Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon - Image 3](https://m.media-amazon.com/images/I/71IENRsvC2L.jpg)
![Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon - Image 4](https://m.media-amazon.com/images/I/71PMAjm8fnL.jpg)
![Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon - Image 5](https://m.media-amazon.com/images/I/61Gp0vcV3UL.jpg)

## Available Options

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

## Questions & Answers

**Q: How long does new concrete need to cure before applying liquid rubber?  We are sealing our new concrete pond with this product = will not have fish in**
A: New concrete needs to cure as per the installation instructions.  Applying any of the Liquid Rubber products or most waterproofing products prior to a full cure may compromise the curing process of the concrete.

**Q: I have a black plastic pond i got from home depot. will it adhere to that material?**
A: Yes, put a few coats on. Let each coat dry well (24)hrs . You can spray on inside of pond. I used a undercoating product used for undercoating cars for the outside of pond. I put 3 coats on. I let each coat dry for 2 days before applying the next coat. All worked great my pond is like new and no leaks and all of my goldfish are fat and happy! Good luck! Take your time and cover every spot even sides. Make sure the pond is very clean before u start applications. I used a ruff kitchen pot scrubber to scrub clean.

**Q: Does this project leave much of an odor after it has set?**
A: Haven't smelled any odor. When putting it on there is a usual rubber smell like a basketball, but it doesn't seem to last very long. And it  smells just like putting rubber on, which wasn't bad. It works for me.

**Q: what color is it when it dries?**
A: The product is brown when it is wet and black when it dries.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tough, Reliable sealant
*by S***G on February 6, 2026*

If you want a sealant that can handle high water temperature and last the test of time, you found it. I used this to seal my homemade solar water heater tank back in early 2022. Today it still hasn't leaked although the tank has reached 130 degrees in summer. Four years of abuse and still reliable is a solid proof of its quality.

### ⭐⭐⭐⭐⭐ Worked for Me but one minor complaint
*by W***R on December 17, 2025*

I did give it a 5 despite one issue- The positive first - Had a leaky flat roof (slightly racked) over my garage - Was going to have it done professionally for over $5000 ish. To replace the existing membrane. Well Liquid Rubber has a help line email so I asked them if this product would work well - and gave them details of my roof etc. - I got an immediate response and then ordered 10 gallons, based on the surface area etc. This was my bad - but to do I believe the recommended 5 coats it took about 6 gallons - since this stuff is bit pricey I could have ordered 5 gallons and 1 gallon and saved $. Good news is the roof did not leak anymore, and looked good. Here was the complaint- I had left a black rubber garden hose on top of the garage months after applying the sealant- maybe it was up there in the middle of August for 3 weeks- Well when I went to remove the hose it was stuck to the roof - It was not that hard to pry it away but it actually left kind of a stain on the roof. So my bad for leaving the hose there but I did not expect that. I have to check but I will have to do this again at some point-

### ⭐⭐⭐⭐⭐ High quality and price point.
*by R***E on October 11, 2025*

The odor is low, it applies easily with a brush, and builds up well making a nice waterproofing on wood, synthetic decking, and metal roof. Dries quickly. It's expensive but it works.

## Frequently Bought Together

- Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 5 Gallon
- Liquid Rubber Geo-Textile - Fix Leaks - Repair and Restore - Easy to Use, 4 Inch x 160 Foot Roll
- Liquid Rubber Caulk - Hybrid Adhesive and Protective Sealant, White, 4 Pack

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**Shop now:** [https://www.desertcart.co.za/products/30925555-liquid-rubber-waterproof-sealant-diy-leak-repair-coating-for-flat](https://www.desertcart.co.za/products/30925555-liquid-rubber-waterproof-sealant-diy-leak-repair-coating-for-flat)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-05*