---
product_id: 24980581
title: "Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 16 oz"
brand: "flex seal liquid"
price: "¥7791"
currency: JPY
in_stock: true
reviews_count: 13
category: "Flex Seal Liquid"
url: https://www.desertcart.jp/products/24980581-flex-seal-liquid-rubber-coating-sealant-waterproof-flexible-breathable-uv
store_origin: JP
region: Japan
---

# UV Resistant for Longevity 100% Waterproof Seal Flexible Rubber Coating Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 16 oz

**Brand:** flex seal liquid
**Price:** ¥7791
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal the deal with Flex Seal Liquid — the ultimate waterproof armor for your projects!

## Quick Answers

- **What is this?** Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 16 oz by flex seal liquid
- **How much does it cost?** ¥7791 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/24980581-flex-seal-liquid-rubber-coating-sealant-waterproof-flexible-breathable-uv)

## 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

- • **Rust & Corrosion Defense:** Chemical resistant coating that shields metal and masonry from damage and decay.
- • **Built to Last Under the Sun:** UV resistant formula ensures your repairs stay strong and fade-free, no matter the weather.
- • **Flexible & Breathable Rubber:** Adapts to surfaces without cracking, maintaining a durable, airtight seal over time.
- • **Versatile Industrial Strength:** Perfect for roofs, basements, RVs, campers, trailers, marine gear, and more—your all-in-one fix-it solution.
- • **Watertight Protection Anywhere:** Brush, roll, dip, or pour for a seamless waterproof barrier that stops leaks fast.

## Overview

Flex Seal Liquid is a 16 oz black rubberized sealant designed for professional-grade waterproofing and protection. Its flexible, breathable, and UV resistant formula creates a durable barrier against water, air, rust, and corrosion. Ideal for diverse applications including roofs, basements, RVs, marine equipment, and masonry, it offers a fast, easy-to-apply solution that adapts to various surfaces and withstands harsh conditions.

## Description

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

Review: great product - works great
Review: Flex seal - Works great, used it to seal the cab on my mini excavator, rolled it on with a small roller, satisfied.

## 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 | B019PFO4KM |
| Best Sellers Rank | #7,614 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #29 in Hardware Sealers |
| Brand | Flex Seal Liquid |
| Brand Name | Flex Seal Liquid |
| Color | Black |
| Compatible Material | Metal, Paper |
| Customer Reviews | 4.5 out of 5 stars 2,251 Reviews |
| Global Trade Identification Number | 00853517006283 |
| Included Components | 16oz Flex Seal Liquid |
| Item Dimensions | 4 x 3.4 x 3.4 inches |
| Item Form | Liquid |
| Item Type Name | As Seen On TV, 16 OZ, Black, Flex Seal Liquid |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 4 x 3.4 x 3.4 inches |
| Manufacturer | Swift Response, LLC |
| Material | Rubber |
| Material Type | Rubber |
| Model | LFSBLKR16 |
| Number of Items | 1 |
| Part Number | LFSBLKR16 |
| Style | Industrial |
| Style Name | Industrial |
| Surface Recommendation | Roof |
| UPC | 853517006283 |
| Unit Count | 16 Fluid Ounces |
| Warranty Description | 1 |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Flex Seal Liquid
- **Item Weight:** 16 ounces
- **Item dimensions L x W x H:** 4 x 3.4 x 3.4 inches
- **Material:** Rubber
- **Style:** Industrial

## Images

![Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 16 oz - Image 1](https://m.media-amazon.com/images/I/81UvT2V36QL.jpg)
![Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 16 oz - Image 2](https://m.media-amazon.com/images/I/819eckqGlrL.jpg)
![Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 16 oz - Image 3](https://m.media-amazon.com/images/I/81NuCA9-PJL.jpg)
![Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 16 oz - Image 4](https://m.media-amazon.com/images/I/9183UZlUo7L.jpg)
![Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 16 oz - Image 5](https://m.media-amazon.com/images/I/81f+kGOurzL.jpg)

## Available Options

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

## Questions & Answers

**Q: Could I dip wooden chair legs in this to prevent them from scratching a wood floor?**
A: Yes, you can dip wooden chair legs but as you use the chairs the bottom will wear off. If they were my chairs I would use felt pads that you can find in any hardware store.

**Q: Would a metal surface become insulated electrically after this was applied? Thinking of a tight car battery compartment...**
A: Not enough to protect the battery from eventually shorting out. I would recommend securing a thick piece of rubber between the battery terminal and the metal close to it.

**Q: How long dose this take to dry**
A: It takes at least 24-48 hours for Flex Seal Liquid to dry based on the thickness of your application.

**Q: My child has a basketball post with a plastic base that holds water.  The base has a leak. Is this product suggested? If so, any prep suggested?**
A: Anything works better with a little prep., sandpaper and clean.  It should do well.  Also as a add the new tape would probably work better.

## Customer Reviews

### ⭐⭐⭐⭐⭐ great product
*by H***K on July 16, 2026*

works great

### ⭐⭐⭐⭐⭐ Flex seal
*by I***T on June 25, 2026*

Works great, used it to seal the cab on my mini excavator, rolled it on with a small roller, satisfied.

### ⭐⭐⭐⭐ A little expensive, but it does the job.
*by G***R on April 6, 2026*

I used this on a steel trash can that I store bird seed in. The top had a gash in it and no matter what I did, water would get in and ruin the seed. I hated to throw it away since that was the only problem. A can of this, and the problem was solved. It's a little spendy for the amount you get which is why I removed 1 star. But there's no question it works good. My only other gripe is that it takes a long time to set up and dry. So if you can keep your project level and dry for 24 hours, that will go a long way to helping it cure. I just used a disposable paint brush to apply it and I kept the now hard brush for future applications. It's fairly durable depending on what you're trying to accomplish. I tried using it on the feet of my deck chairs hoping it would save wear and tear on my deck? Not a good idea, it just fell off after a couple of uses. But for sealing, this is a good product.

## Frequently Bought Together

- 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
- Flex Seal 2-Pack Black 17oz Stop Leaks Instantly, Waterproof Sealant Coating For Gutters, RV, Roof, Skylights, Windows

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**Shop now:** [https://www.desertcart.jp/products/24980581-flex-seal-liquid-rubber-coating-sealant-waterproof-flexible-breathable-uv](https://www.desertcart.jp/products/24980581-flex-seal-liquid-rubber-coating-sealant-waterproof-flexible-breathable-uv)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-03*