---
product_id: 59865111
title: "Liquid Rubber Foundation Sealant - Basement Waterproof Sealer, Black, 1 Gal | Flexible Elastomeric Coating - Crack Filler, Leak Repair, Basement Waterproofing Solution, Indoor/Outdoor Use, DIY Protection"
brand: "liquid rubber"
price: "€ 203.87"
currency: EUR
in_stock: true
category: "Liquid Rubber"
url: https://www.desertcart.gr/products/59865111-liquid-rubber-foundation-sealant-basement-waterproof-sealer-black-1-gal
store_origin: GR
region: Greece
---

# 50 sq ft/gallon interior coverage 900% elongation for ultimate flexibility Zero VOC, safe indoor use Liquid Rubber Foundation Sealant - Basement Waterproof Sealer, Black, 1 Gal | Flexible Elastomeric Coating - Crack Filler, Leak Repair, Basement Waterproofing Solution, Indoor/Outdoor Use, DIY Protection

**Brand:** liquid rubber
**Price:** € 203.87
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with Liquid Rubber — where leaks meet their match!

## Quick Answers

- **What is this?** Liquid Rubber Foundation Sealant - Basement Waterproof Sealer, Black, 1 Gal | Flexible Elastomeric Coating - Crack Filler, Leak Repair, Basement Waterproofing Solution, Indoor/Outdoor Use, DIY Protection by liquid rubber
- **How much does it cost?** € 203.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/59865111-liquid-rubber-foundation-sealant-basement-waterproof-sealer-black-1-gal)

## 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-Safe & User-Friendly:** Zero VOC formula means safe indoor application with no mixing hassle—DIY made easy.
- • **Professional-Grade Leak Defense:** Creates a permanent, elastomeric membrane that outperforms traditional sealants.
- • **Versatile Surface Compatibility:** Bonds seamlessly to concrete, wood, metal, and masonry for all your repair needs.
- • **Max Coverage, Maximum Protection:** Covers up to 50 sq ft per gallon indoors with multiple coats for a watertight barrier.
- • **Unmatched Waterproof Flexibility:** Stretches up to 9x its size to seal cracks and prevent leaks like no other.

## Overview

Liquid Rubber Foundation Sealant is a professional-grade, flexible elastomeric coating designed for superior basement waterproofing and crack repair. With 900% elongation and zero VOCs, it provides a durable, safe, and versatile waterproof membrane compatible with multiple surfaces, delivering up to 50 sq ft coverage per gallon indoors. Ideal for DIYers seeking a reliable, long-lasting solution to foundation leaks and moisture protection.

## Description

Liquid Rubber Foundation Sealant - Basement Waterproof Sealer, Black, 1 Gal | Flexible Elastomeric Coating - Crack Filler, Leak Repair, Basement Waterproofing Solution, Indoor/Outdoor Use, DIY Protection - desertcart.com

## Features

- SUPERIOR FLEXIBLE SEALANT: Liquid Rubber's foundation sealer creates a permanent waterproof membrane for basement waterproofing, foundation leak repair, shower liners, and planter boxes. This professional-grade sealer delivers unmatched protection with 900% elongation, preventing leaks and water damage more effectively than traditional sealants
- COMPLETE BASEMENT WATERPROOFING SYSTEM: Surpassing basic concrete paint, concrete sealers, and standard waterproof agents, this waterproofing membrane is designed to seal and protect against active leaks and moisture, making it perfect for basement leak and foundation repair. Seamlessly compatible with self leveling concrete applications
- VERSATILE CONCRETE CRACK FILLER: The professional-grade rubber coating and rubber waterproofing technology maintains flexibility in all temperatures, preventing future cracks and damage. This liquid rubber waterproof sealant provides superior adhesion to concrete, masonry, wood, metal, and foundation surfaces, making it an ideal choice for your DIY projects
- MAXIMUM COVERAGE & PERFORMANCE: This high-build basement sealer goes on like waterproof paint - Interior basement surfaces: 50 sq ft/gallon (requires: 2-3 coats), Exterior concrete sealer outdoor surfaces: 20 sq ft/gallon (requires: 3-4 coats). Apply between 50°F-90°F. For complete protection, use the rubber sealant with Liquid Rubber Geo-Textile on joints and transitions
- IMPORTANT USAGE GUIDELINES: Product goes on BROWN but dries Black; The water-based foundation sealer formula contains zero VOCs for safe indoor application. No mixing required! Apply by brush, roller, or professional sprayer as part of your basement waterproofing system. Not suitable for walking surfaces due to tackiness when cured
- 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 |
|---------------|-------|
| ASIN | B071X7VL68 |
| Best Sellers Rank | #12,114 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #50 in Hardware Sealers |
| Brand Name | Liquid Rubber |
| Color | Black |
| Compatible Material | Cement, Concrete, Engineered Wood, Masonry, Wood |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,366) |
| Included Components | 1 Gallon |
| Item Dimensions | 8 x 8 x 8 inches |
| Item Form | Liquid |
| Item Weight | 9 pounds |
| Manufacturer | Liquid Rubber USA |
| Material Type | Liquid-Based Rubber Elastomeric membrane |
| Model | 13 |
| Number of Items | 1 |
| Part Number | 10602 |
| Style Name | Protective |
| Supported Standards | ASTM C-920 |
| Surface Recommendation | Poured concrete, Concrete masonry units (CMUs), Insulated concrete forms (ICF), Pre-cast and permanent wood foundations (PWFs), Wood (with proper priming and preparation) |
| UPC | 628421106028 |
| Unit Count | 128 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Liquid Rubber
- **Item Weight:** 9 pounds
- **Item dimensions L x W x H:** 8 x 8 x 8 inches
- **Material:** Liquid-Based Rubber Elastomeric membrane
- **Style:** Protective

## Images

![Liquid Rubber Foundation Sealant - Basement Waterproof Sealer, Black, 1 Gal | Flexible Elastomeric Coating - Crack Filler, Leak Repair, Basement Waterproofing Solution, Indoor/Outdoor Use, DIY Protection - Image 1](https://m.media-amazon.com/images/I/71Y0KORR55L.jpg)
![Liquid Rubber Foundation Sealant - Basement Waterproof Sealer, Black, 1 Gal | Flexible Elastomeric Coating - Crack Filler, Leak Repair, Basement Waterproofing Solution, Indoor/Outdoor Use, DIY Protection - Image 2](https://m.media-amazon.com/images/I/91HuG3JC3pL.jpg)
![Liquid Rubber Foundation Sealant - Basement Waterproof Sealer, Black, 1 Gal | Flexible Elastomeric Coating - Crack Filler, Leak Repair, Basement Waterproofing Solution, Indoor/Outdoor Use, DIY Protection - Image 3](https://m.media-amazon.com/images/I/91H9T6TRfKL.jpg)
![Liquid Rubber Foundation Sealant - Basement Waterproof Sealer, Black, 1 Gal | Flexible Elastomeric Coating - Crack Filler, Leak Repair, Basement Waterproofing Solution, Indoor/Outdoor Use, DIY Protection - Image 4](https://m.media-amazon.com/images/I/81Jyoj6LE7L.jpg)
![Liquid Rubber Foundation Sealant - Basement Waterproof Sealer, Black, 1 Gal | Flexible Elastomeric Coating - Crack Filler, Leak Repair, Basement Waterproofing Solution, Indoor/Outdoor Use, DIY Protection - Image 5](https://m.media-amazon.com/images/I/81MWu7msR3L.jpg)

## Available Options

This product comes in different **Color, 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: can i use in wood? i want to do wooden pots**
A: Yes, you can use the Liquid Rubber Foundation Sealant in wooden pots or planters.  Please see the Liquid Rubber USA site for more specific application info.

## Frequently Bought Together

- Liquid Rubber Basement and Foundation Repair Sealant - Waterproof Concrete Sealer & Crack Filler - Flexible Coating for Indoor & Outdoor Use - Waterproofing Paint - 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, 1 Pack

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-31*