---
product_id: 428454630
title: "SEMCO Liquid Membrane - Waterproofing Membrane - Multi-Surface Leak and Crack Repair Interior and Exterior Coating, Water-Based, Easy to Apply, 1 Quart (Brown Slate)"
brand: "semco liquid membrane"
price: "$195.17"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/428454630-semco-liquid-membrane-waterproofing-membrane-multi-surface-leak-and-crack
store_origin: EC
region: Ecuador
---

# Eco-Friendly Waterproofing Flexible Repair SEMCO Liquid Membrane - Waterproofing Membrane - Multi-Surface Leak and Crack Repair Interior and Exterior Coating, Water-Based, Easy to Apply, 1 Quart (Brown Slate)

**Brand:** semco liquid membrane
**Price:** $195.17
**Availability:** ✅ In Stock

## Summary

> Seal the Deal! 🛡️

## Quick Answers

- **What is this?** SEMCO Liquid Membrane - Waterproofing Membrane - Multi-Surface Leak and Crack Repair Interior and Exterior Coating, Water-Based, Easy to Apply, 1 Quart (Brown Slate) by semco liquid membrane
- **How much does it cost?** $195.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/428454630-semco-liquid-membrane-waterproofing-membrane-multi-surface-leak-and-crack)

## Best For

- semco liquid membrane enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Sustainable:** Water-based and free from harmful chemicals, making it safe for your family and the planet.
- • **Ultimate Protection:** Defend your spaces from moisture with a robust waterproofing solution.
- • **Unmatched Flexibility:** With a 1300% elongation rate, it adapts to cracks and movements effortlessly.
- • **User-Friendly Formula:** No complicated mixing—just open, apply, and seal your surfaces like a pro!
- • **Versatile Application:** Perfect for various surfaces, from concrete to metal, ensuring no corner is left unsealed.

## Overview

SEMCO Liquid Membrane is a versatile, water-based waterproofing solution designed for both interior and exterior applications. It offers exceptional flexibility, allowing it to bridge cracks and protect various substrates from moisture damage. With its eco-friendly formulation, it’s safe for indoor use and easy to apply, making it the go-to choice for homeowners and professionals alike.

## Description

Easy to Apply Professional Grade Waterproofing!The SEMCO Liquid Membrane™️ is a ready to use COAT | COLOR | SEAL waterproofing and anti-fracture membrane in ONE. Its hybrid elastomer blend enables easy application while providing excellent bridging, and waterproofing capabilities.Ready to use waterproofing and crack bridging membraneCoverage of 200-250 sq ft per gallon ( 2 coats at 0.015 inches thickness/coat)Easy to apply : with 1/2" woven nap roller, brush or spray applicationUV-Stable : Suitable for exterior applicationsAvailable in 14 colors to choose fromSuitable For Different SubstratesWood : No matter if it pressure treated wood or normal timber, SEMCO Liquid Membrane can be applied on any wooden substrate to protect it from weathering and moisture damage. Since it can withstand foot traffic, it is the perfect coating for your wood deck.Concrete : Can be used for concrete foundations or concrete subfloors as a primary waterproofing.Pools : Old leaking fiberglass, concrete or gunite pools can be coated by yourself with SEMCO Liquid Membrane in order to not only waterproof it but also give it a new color. For fully submerged applications 3 coats at a minimum of 45 mil (0,045 inches) total thickness is required. We do not recommend using the Semi-Clear for submerged applications.Metal & Aluminium : Ideal for fixing roof leaks or waterproofing roofs as a precaution. Since it is UV-Stable SEMCO Liquid Membrane is ideal for roofing applications.Basement & Below Grade Application : Leaking basements are often a problem after heavy rainfalls where excess water in the soil gets pushed through the walls. SEMCO Liquid Membrane can withstand hydrostatic pressure of up to 10 PSI. It can be applied on the inside of your basement walls in order to stop water coming in.

## Features

- Exterior and Interior Waterproofing - Suitable for interior and exterior applications, fully submerged in water and below grade applications. SEMCO Liquid Membrane can be used as a primary waterproofing under tiles in a shower to protect substrate from moisture damage or it can be used as finish sealer. With SEMCO Liquid Membrane being UV stable, it works great for exterior deck, as a roof sealant and basement wall and floor to seal it off from penetrating moisture.
- Suitable For Different Substrates - Can be applied on different substrates such as concrete, wood, interior/exterior cladding, metal and aluminium, Drywall boards, brick ,exterior stucco, RV roofs and metal roofs.
- Highly Flexible and Durable - SEMCO Liquid Membrane Waterproof Sealant has an elongation of 1300% once cured and is therefore ideal for crack repairs or crack bridging. For cracks wider than 1/4" use SEMCO Fabric Reinforcement for added durability and preventing cracks from transferring into your finish.
- Environmental Friendly - The SEMCO Liquid Membrane 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
- Easy Application - Open the container and start using. You can close the container and use later if you have left over material. No pot life or working time like 2 component products. Apply by Brush, Roller or High Quality Piston Paint Sprayer. Basically just like paint application!

## Product Details

- **Material:** Elastomer Blend
- **Brand:** SEMCO Liquid Membrane
- **Style:** Compact
- **Water Resistance Level:** Waterproof
- **Item Form:** Liquid

## Images

![SEMCO Liquid Membrane - Waterproofing Membrane - Multi-Surface Leak and Crack Repair Interior and Exterior Coating, Water-Based, Easy to Apply, 1 Quart (Brown Slate) - Image 1](https://m.media-amazon.com/images/I/51EpFX2Pf-L.jpg)
![SEMCO Liquid Membrane - Waterproofing Membrane - Multi-Surface Leak and Crack Repair Interior and Exterior Coating, Water-Based, Easy to Apply, 1 Quart (Brown Slate) - Image 2](https://m.media-amazon.com/images/I/71zmKxrcWXL.jpg)
![SEMCO Liquid Membrane - Waterproofing Membrane - Multi-Surface Leak and Crack Repair Interior and Exterior Coating, Water-Based, Easy to Apply, 1 Quart (Brown Slate) - Image 3](https://m.media-amazon.com/images/I/511vv-Z5s7L.jpg)
![SEMCO Liquid Membrane - Waterproofing Membrane - Multi-Surface Leak and Crack Repair Interior and Exterior Coating, Water-Based, Easy to Apply, 1 Quart (Brown Slate) - Image 4](https://m.media-amazon.com/images/I/71UBkFk70SL.jpg)
![SEMCO Liquid Membrane - Waterproofing Membrane - Multi-Surface Leak and Crack Repair Interior and Exterior Coating, Water-Based, Easy to Apply, 1 Quart (Brown Slate) - Image 5](https://m.media-amazon.com/images/I/61fpXHKJSTL.jpg)

## Available Options

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

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-20*