---
product_id: 224209221
title: "Liquid Rubber Waterproof Sealant - Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Black, 3.78 Litres"
brand: "liquid rubber"
price: "R5027"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Liquid Rubber"
url: https://www.desertcart.co.za/products/224209221-liquid-rubber-waterproof-sealant-leak-repair-indoor-and-outdoor-coating
store_origin: ZA
region: South Africa
---

# Water-based, eco-friendly & odorless 1000% elongation for ultimate flexibility UV stable to resist sun damage Liquid Rubber Waterproof Sealant - Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Black, 3.78 Litres

**Brand:** liquid rubber
**Price:** R5027
**Availability:** ✅ In Stock

## Summary

> 💧 Seal the deal with Liquid Rubber – flexible, durable, and leak-proof!

## Quick Answers

- **What is this?** Liquid Rubber Waterproof Sealant - Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Black, 3.78 Litres by liquid rubber
- **How much does it cost?** R5027 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/224209221-liquid-rubber-waterproof-sealant-leak-repair-indoor-and-outdoor-coating)

## 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

- • **Sunproof Seal:** UV stable formula keeps your repairs intact under harsh sunlight
- • **Eco-Smart Formula:** Water-based and VOC-free for safe indoor/outdoor use
- • **Unmatched Flexibility:** Stretches over 10x its size to prevent cracks and leaks
- • **Versatile Leak Repair:** Perfect for garages, roofs, and more—stop leaks before they start
- • **Fast & Easy Application:** Brush on a dry surface, cures in 24-48 hours—no special gear needed

## Overview

Liquid Rubber Waterproof Sealant is a 3.78-litre, water-based, black coating designed for indoor and outdoor leak repairs. It offers over 1000% elongation for superior flexibility, UV stability to prevent sun damage, and an eco-friendly, odorless formula safe for humans and pets. Easy to apply with a brush on dry surfaces, it cures within 24-48 hours, providing a durable, waterproof membrane ideal for commercial and residential use.

## Description

Liquid Rubber Waterproof Sealant - Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Black, 3.78 Litres : desertcart.co.uk: DIY & Tools

Review: Stopped the leaks - Used this around my garage around the bottom edge where the cement fillets are as I was getting water come through when it rained heavy. Brilliant stuff, just paint it on use an brush but it does come off with white spirit.
Review: Really good stuff - Really good stuff for cheap roof repair. I’d probably only use it as a temporary solution however as it does seem to degrade after a few years

## Features

- HIGHLY FLEXIBLE & DURABLE - Final membrane has over 1000% elongation preventing adhesion failure, and is UV Stable stopping the sun from degrading the product. Product remains tacky - not suitable for walking surfaces
- HIGHLY FLEXIBLE & DURABLE - Final membrane has over 1000% elongation preventing adhesion failure, and is UV Stable stopping the sun from degrading the product
- APPLICATION - Do not apply in wet conditions or within 24 hours of rain. Apply to a dry surface, free loose flaky paint and coatings or anything that would prevent adhesion. Typically cures within 24-48 hours!
- CONVERSION - 1 US Gallon is equal to 0.83 UK Gallons - 5 US Gallons are equal to 4.16 UK Gallons
- ENVIRONMENTALLY FRIENDLY - Liquid Rubber Waterproof Sealant/Coating is water based, containing no solvents, VOC's or harmful odors. Safe for humans and pets alike, can be used indoors and outdoors with no special breathing apparatus
- Packaging may vary

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00NI150Z8 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 29,825 in DIY & Tools ( See Top 100 in DIY & Tools ) 504 in Sealers |
| Colour | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,897) |
| Date First Available | 9 Dec. 2014 |
| Horsepower | 1.00 |
| Included components | 1 Gallon |
| Item Package Quantity | 1 |
| Item Weight | 4.08 kg |
| Item model number | 12602 |
| Manufacturer | Liquid Rubber USA |
| Material | Rubber,Metal |
| Part number | 12602 |
| Product Dimensions | 30.48 x 30.48 x 40.64 cm; 4.08 kg |
| Size | 3.78 Litres |
| Special Features | Waterproof |
| Specific uses | Commercial/Residential |
| Style | Protective |

## Product Details

- **Brand:** Liquid Rubber
- **Item dimensions L x W x H:** 30.5 x 30.5 x 40.6 centimetres
- **Item weight:** 9 Pounds
- **Material:** Rubber,Metal
- **Style:** Protective

## Images

![Liquid Rubber Waterproof Sealant - Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Black, 3.78 Litres - Image 1](https://m.media-amazon.com/images/I/718p80gVGfL.jpg)
![Liquid Rubber Waterproof Sealant - Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Black, 3.78 Litres - Image 2](https://m.media-amazon.com/images/I/818MSHzrPPL.jpg)
![Liquid Rubber Waterproof Sealant - Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Black, 3.78 Litres - Image 3](https://m.media-amazon.com/images/I/911IuZ9JYuL.jpg)
![Liquid Rubber Waterproof Sealant - Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Black, 3.78 Litres - Image 4](https://m.media-amazon.com/images/I/81LJF5fm-HL.jpg)
![Liquid Rubber Waterproof Sealant - Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Black, 3.78 Litres - Image 5](https://m.media-amazon.com/images/I/81plY6RR3EL.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

### ⭐⭐⭐⭐⭐ Stopped the leaks
*by R***O on 2 November 2025*

Used this around my garage around the bottom edge where the cement fillets are as I was getting water come through when it rained heavy. Brilliant stuff, just paint it on use an brush but it does come off with white spirit.

### ⭐⭐⭐⭐⭐ Really good stuff
*by M***N on 15 May 2025*

Really good stuff for cheap roof repair. I’d probably only use it as a temporary solution however as it does seem to degrade after a few years

### ⭐⭐⭐⭐ Easy to apply
*by K***N on 29 August 2023*

Applied 4 coats to my osb timber shed roof within a 2 day period of no rain about a month ago.. We've had some heavy rain since and also some really hot days and so far so good.. have enough left for one more coat. My roof is 3m x 5m.. goes on brown then turns black quickly... Time will tell..

## Frequently Bought Together

- Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 1 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/224209221-liquid-rubber-waterproof-sealant-leak-repair-indoor-and-outdoor-coating](https://www.desertcart.co.za/products/224209221-liquid-rubber-waterproof-sealant-leak-repair-indoor-and-outdoor-coating)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-12*