---
product_id: 203616078
title: "Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 18.92 Litres"
brand: "liquid rubber"
price: "VT238865"
currency: VUV
in_stock: true
reviews_count: 8
url: https://www.desertcart.vu/products/203616078-concrete-foundation-and-basement-sealant-indoor-and-outdoor-waterproof-coating
store_origin: VU
region: Vanuatu
---

# Water-based, zero VOCs 900% elongation membrane No-mix, brush/roller/sprayer ready Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 18.92 Litres

**Brand:** liquid rubber
**Price:** VT238865
**Availability:** ✅ In Stock

## Summary

> 💪 Seal it once, forget leaks forever!

## Quick Answers

- **What is this?** Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 18.92 Litres by liquid rubber
- **How much does it cost?** VT238865 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/203616078-concrete-foundation-and-basement-sealant-indoor-and-outdoor-waterproof-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

- • **Eco-Smart Sealant:** Water-based formula with zero harmful fumes, safe indoors & out
- • **Ultimate Flexibility:** Stretches over 9x its length for crack-proof protection
- • **Broad Surface Coverage:** Covers up to 100 sq ft per gallon on vertical surfaces
- • **Effortless Application:** No mixing or special tools—just brush, roll, or spray on
- • **Long-Term Watertight Barrier:** Creates a durable 1.5-2mm membrane that resists moisture penetration

## Overview

Liquid Rubber Concrete Foundation and Basement Sealant is a high-performance, water-based waterproof coating designed for indoor and outdoor use. With over 900% elongation, it forms a flexible, durable membrane that protects foundations, basements, and more. Easy to apply with no mixing required, it’s eco-friendly, safe for humans and pets, and covers large areas efficiently, making it the go-to solution for professional-grade waterproofing.

## Description

Liquid Rubber Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 18.92 Litres

## Features

- USE FOR - Foundations, ICF's, basements, shower liners, deck and fence posts, planter boxes, metal, wood, concrete, and more! Highly flexible, the final membrane has over 900% elongation. Product remains tacky - not suitable for walking surfaces
- EASY TO APPLY - No mixing required! Apply by brush, roller or high quality piston paint sprayer. Container can be closed and left over material used later. No pot life or working time like 2 component products
- ENVIRONMENTALLY FRIENDLY - Liquid Rubber Foundation Sealant 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
- COVERAGE - Flat/Ponding Surface: 50 sq ft/G per coat. Apply 3-4 heavy coats to achieve a 60-80 mil. (1.5-2.0mm) membrane. Vertical Surfaces: 100 sq ft/G per coat. Apply 2-3 heavy coats to achieve a 40-60 mil. (1.0-1.5mm) membrane
- CONVERSION - 1 US Gallon is equal to 0.83 UK Gallons - 5 US Gallons are equal to 4.16 UK Gallons
- FOR A WATERTIGHT SYSTEM - Use rubber sealant with Liquid Rubber Geo-Textile on joints and transitions, fill small cracks with Liquid Rubber Sealant & Adhesive, and bridge joints, seams, vents, and protrusions where movement may occur. Scroll down for full application steps

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Liquid Rubber USA |
| Part number | 20602 |
| Item Weight | 19.8 kg |
| Product Dimensions | 30.48 x 30.48 x 40.64 cm; 19.8 kg |
| Item model number | 20602 |
| Size | 5 Gallon |
| Colour | Black |
| Style | Protective |
| Finish | Flat |
| Material | Water Based,Metal,Rubber |
| Horsepower | 0.01 hp |
| Item Package Quantity | 1 |
| Special Features | Waterproof |
| Specific uses | Commercial/Residential |
| Included components | 5 Gallon |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Water Based,Metal,Rubber
- **Brand:** Liquid Rubber
- **Style:** Protective
- **Item weight:** 19.8 Kilograms
- **Item dimensions L x W x H:** 30.5 x 30.5 x 40.6 centimetres

## Images

![Concrete Foundation and Basement Sealant - Indoor & Outdoor Waterproof Coating, Easy to Apply, Black, 18.92 Litres - Image 1](https://m.media-amazon.com/images/I/61FXgbdqhnL.jpg)

## Available Options

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

## Questions & Answers

**Q: will this work on a pond?**
A: Yes, as a matter of fact I just redid my riverbed and the pond with concrete and then applied a couple of good coats of the liquid rubber using the last coat to adhere the rocks and it is beautiful and is holding the water perfectly'

**Q: What's the lowest temperature to apply this product ?**
A: I don't think the temp affects the function of this product as it does not have a " Do not allow to freeze " requirement. It doesn't really dry as it remains pliable like rubber. I would however heed the suppliers advice and try not to apply it below 5c/40f if possible.

**Q: Approximately how many square feet will one 5 gallon bucket cover?**
A: 100-125sq ft at a 60mil thickness. 
 Bought 5, 5gal buckets to do 580sq ft of foundation and had about 1/2 gallon left over at an average of 60mil thickness.

**Q: Question for anyone who sealed their basement from the inside. Has it held up against water leaks?**
A: Yes so far... make sure you get every nook and cranny! I missed a tiny little hole and it leaked.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by U***S on 14 October 2024*

It’s easy to apply and drying quickly so generally good stuff 👍

### ⭐⭐⭐⭐⭐ Horse Box Roof repair
*by P***  on 1 August 2024*

I used this to fix the leaky fiberglass roof of my horse box. Easy to apply, just paint on with a roller, a couple of coats and it is completely waterproof with the added bonus of repairing strips of fiberglass that were sticking up.

### ⭐⭐⭐⭐ Easy to apply
*by T***Y on 10 February 2024*

Basically time will tell! Looks solid when dry. I applied three coats for damp proving a cupboard wall,which was suffering from rising damp. no damp seems to be registering in a damp collector I have put in the cupboard so far. The damp solution dries quite hard. Can’t understand why they call it a rubber coating!Seems to have no or very little flexibility to me. In summary, quite happy with the results thus far.

## Frequently Bought Together

- Liquid Rubber Basement and Foundation Repair Sealant - Waterproof Concrete Sealer & Crack Filler - Flexible Coating for Indoor & Outdoor Use - Waterproofing Paint - 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vu/products/203616078-concrete-foundation-and-basement-sealant-indoor-and-outdoor-waterproof-coating](https://www.desertcart.vu/products/203616078-concrete-foundation-and-basement-sealant-indoor-and-outdoor-waterproof-coating)

---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-06*