---
product_id: 34430165
title: "Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz"
brand: "flex seal liquid"
price: "¥7306"
currency: JPY
in_stock: true
reviews_count: 11
category: "Flex Seal Liquid"
url: https://www.desertcart.jp/products/34430165-rubber-coating-sealant-waterproof-flexible-breathable-and-uv-resistant-roof
store_origin: JP
region: Japan
---

# UV Resistant for Outdoor Durability 100% Waterproof Seal Brush, Roll, Dip or Pour Application Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz

**Brand:** flex seal liquid
**Price:** ¥7306
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it, shield it, and flex your fix like a pro!

## Quick Answers

- **What is this?** Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz by flex seal liquid
- **How much does it cost?** ¥7306 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/34430165-rubber-coating-sealant-waterproof-flexible-breathable-and-uv-resistant-roof)

## Best For

- flex seal liquid enthusiasts

## Why This Product

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

## Key Features

- • **UV & Chemical Shield:** Protect surfaces from sun damage, rust, and corrosive elements with confidence.
- • **Multi-Surface Mastery:** Ideal for roofs, basements, RVs, marine gear, masonry, and more—one can, endless fixes.
- • **Fast-Drying Flexibility:** Dries quickly to a durable, rubberized finish that flexes with your surfaces.
- • **Seamless Waterproof Barrier:** Create a flexible, watertight rubber shield that stops leaks cold.
- • **Versatile Application Modes:** Brush, roll, dip, or pour—customize your repair style effortlessly.

## Overview

Flex Seal Liquid is a 16 oz gray rubberized coating that provides a waterproof, flexible, breathable, and UV-resistant seal. Perfect for quick roof repairs, basements, RVs, marine applications, and masonry, it applies smoothly by brush, roller, dip, or pour and dries fast to form a durable, chemical-resistant barrier that prevents rust and corrosion.

## Description

Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz: desertcart.com: Tools & Home Improvement

Review: works better than expect as put on with a brush - Works great and seems of good quality and can be layered to the thickness you want. As dries quick so buy extra brushes or rollers. Update 7-25 I needed this stuff to think out as using more like a paint where if you use it otherwise it kind of runs. Mineral spirits from rust oleum is what I used to thin it. Manufacture says you can't but you can and it still dries like normal as I first tested in a jar and solidified like a hard rubber surface. Just so you know nothing sticks to this stuff as paint and other type of rubber coatings unless it is of the same chemistry as why I had to thin this stuff out and use with a fine brush but dries fast like starts in minutes and then really unusable in about 15-20 minutes for the same effect.
Review: $aved Big Buck$ - Seals almost anything. Just restored my split-seam $350 golf cart roof for just $42 total...

## Features

- Flex Seal Liquid is liquid rubber in a can! Now you can brush, roll, dip or pour it on!
- Use anywhere you need a watertight, flexible rubberized coating
- Goes on smooth and covers fast, sealing out water, air and moisture
- UV Resistant
- Prevents rust and corrosion. Chemical resistant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01GFY9X3E |
| Best Sellers Rank | #60,928 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #170 in Hardware Sealers |
| Brand | Flex Seal Liquid |
| Color | Gray |
| Date First Available | June 1, 2016 |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00853517006375 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 1 pounds |
| Item dimensions L x W x H | 4 x 3.4 x 3.4 inches |
| Item model number | FLEX SEAL - LFSGRYR16 - GRAY |
| Manufacturer | Flex Seal Liquid |
| Material | Rubber |
| Number of Items | 1 |
| Product Dimensions | 4 x 3.4 x 3.4 inches |
| Style | Custom |
| Surface Recommendation | Roof |
| UPC | 853517006375 |
| Unit Count | 16.0 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Flex Seal Liquid
- **Item Weight:** 1 Pounds
- **Item dimensions L x W x H:** 4 x 3.4 x 3.4 inches
- **Material:** Rubber
- **Style:** Custom

## Images

![Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz - Image 1](https://m.media-amazon.com/images/I/81lNLOVq9kL.jpg)
![Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz - Image 2](https://m.media-amazon.com/images/I/81I7sI2P-hL.jpg)
![Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz - Image 3](https://m.media-amazon.com/images/I/811na5wm+CL.jpg)
![Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz - Image 4](https://m.media-amazon.com/images/I/91-nBSzSjHL.jpg)
![Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz - Image 5](https://m.media-amazon.com/images/I/91rN4QERjML.jpg)

## Questions & Answers

**Q: Can it be painted once dried?**
A: Yes Flex Seal Liquid can be painted.

**Q: how easy is clean-up**
A: Not easy.  Some utensils can be cleaned by just wiping off with a rag.  Use gloves as it is hard to get off skin. We discarded rollers and brushes.

**Q: Is this  mold resistant?**
A: Flex Seal Liquid is mildew resistant.

**Q: can this be used as a sill seal,  i am building a shed on a concrete slab and want to seal the shed frame to the concrete**
A: can I use Flex seal on my shower floor

## Customer Reviews

### ⭐⭐⭐⭐⭐ works better than expect as put on with a brush
*by A***N on June 8, 2023*

Works great and seems of good quality and can be layered to the thickness you want. As dries quick so buy extra brushes or rollers. Update 7-25 I needed this stuff to think out as using more like a paint where if you use it otherwise it kind of runs. Mineral spirits from rust oleum is what I used to thin it. Manufacture says you can't but you can and it still dries like normal as I first tested in a jar and solidified like a hard rubber surface. Just so you know nothing sticks to this stuff as paint and other type of rubber coatings unless it is of the same chemistry as why I had to thin this stuff out and use with a fine brush but dries fast like starts in minutes and then really unusable in about 15-20 minutes for the same effect.

### ⭐⭐⭐⭐⭐ $aved Big Buck$
*by B***R on November 12, 2025*

Seals almost anything. Just restored my split-seam $350 golf cart roof for just $42 total...

### ⭐⭐⭐⭐ Good Sealer
*by A***A on August 9, 2019*

I used this product to seal a retaining wall. Seems to work well, resists water and looks good. Must admit that cleanup is difficult. I used a cheap brush and threw it out when the project was complete.

## Frequently Bought Together

- Flex Seal Liquid, 16 oz, Gray, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry
- Pro Grade, Paint Brushes, 5-Piece, Paint Brush Set: Flat & Angle Brushes for Latex and Oil Paints, Stains, Interior & Exterior Home Improvement
- Flex Seal Liquid, 16 oz, Black, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry

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**Shop now:** [https://www.desertcart.jp/products/34430165-rubber-coating-sealant-waterproof-flexible-breathable-and-uv-resistant-roof](https://www.desertcart.jp/products/34430165-rubber-coating-sealant-waterproof-flexible-breathable-and-uv-resistant-roof)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-04*