---
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: "$50.31"
currency: USD
in_stock: true
reviews_count: 13
category: "Flex Seal Liquid"
url: https://www.desertcart.us/products/24980581-flex-seal-liquid-rubber-coating-sealant-waterproof-flexible-breathable-uv
store_origin: US
region: United States of America
---

# UV Resistant Coating 100% Waterproof Seal Flexible & Durable Rubber 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:** $50.31
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal it, protect it, flex it — the ultimate liquid armor for your gear!

## 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?** $50.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/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

- • **Versatile Application:** Perfect for roofs, RVs, marine gear, basements, and more—one product, endless fixes.
- • **UV Shield for Longevity:** Protect your surfaces from sun damage with a coating that stays strong and vibrant.
- • **Rust & Corrosion Defense:** Chemical resistant formula that prevents rust and extends the life of your projects.
- • **Fast-Drying, Glossy Finish:** Dries quickly to a sleek, glossy texture that looks professional and lasts.
- • **Seamless Waterproof Barrier:** Brush, roll, or pour on a watertight rubberized shield that stops leaks instantly.

## Overview

Flex Seal Liquid is a 16 oz black rubber coating that creates a flexible, breathable, and UV-resistant waterproof seal. Ideal for roof repairs, basements, RVs, marine applications, and more, it dries fast to a glossy finish and protects against rust, corrosion, and moisture damage.

## Description

Product description Stops leaks fast. Starts out as a thick liquid and dries to a super strong, flexible, watertight, rubberized coating. Seeps into cracks and holes. Blocks out air, water, and moisture for a superior seal, virtually anywhere. Prevents rust and corrosion. Extends the life of patio furniture, pool pumps, RV and shed roofs, and more. Stands up to extreme weather changes. Expands, contracts, flexes and stretches. Resists rain, snow, sun, and hail. Exceptional adhesion. Works on all types of surfaces, even challenging ones, like metal and glass. UV and chemical resistant. Use indoors and outdoors for basement waterproofing, foundation fixes, roof repairs, and more. DIRECTIONS Fully clean and dry the surface for best results. Etch the surface to help with adhesion if needed. For the best application, use a standard disposable paint roller or paint brush. Apply several even, thin coats and wait 24 - 48 hours for each layer to fully dry before adding the next. Always place the lid back on the container after each use. If drying occurs, remove any skin before using product.

Review: Love this stuff!! - Love this stuff! Was able to use it to help seal various different parts on my 69 Dodge Dart Project. Has a nice glossy texture and dries pretty quickly. Helps protect my components in my car and keeps them from cracking. It is a good texture for most any projects. I have used it on other applications too. It's nice that it's a versatile project that I can use for almost anything!
Review: Worked great - This did what I expected. I have a 1976 Volkswagen Beetle convert. that I am fixing up. The rubber on the running boards was dried out and discolored, along with some splits in the rubber showing bare metal underneath. It was going to cost well over two hundred dollars each to replace them, so I thought I'd try Flex Seal. After cleaning and drying the running boards I applied the product with a small paintbrush. It went on easily,covered really well, and small "oops" we're easily wiped up with a cleaning cloth. I allowed a drying time of 24 hours and just now went out and filled in the split areas with a little more product and smoothed it out with the brush. It looks fantastic! I took a couple pictures which don't do it justice. It dried really shiny, and looks wet although it's dry and looks and feels like rubber. Some tips: I first stirred it very well because I could tell it was thick at the bottom of the can. It was easy to stir up though. When I was finished with the project yesterday, I replaced the can lid and tapped it on tightly. My brush I wanted to use again for today's touch up, so I sealed it in tin foil. When I opened the can again today it was ready to go but is tired it again anyway. There was no "skin" on top, and no lumps. My brush was only slightly stiff and I was able to use it again. I used about half a can of the product to do both running boards and am very pleased with how they look!

## 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 | #5,557 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 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 2,208 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 | 16.0 Fluid Ounces |
| Warranty Description | 1 |
| 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:** 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)

## 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

### ⭐⭐⭐⭐⭐ Love this stuff!!
*by T***G on October 21, 2025*

Love this stuff! Was able to use it to help seal various different parts on my 69 Dodge Dart Project. Has a nice glossy texture and dries pretty quickly. Helps protect my components in my car and keeps them from cracking. It is a good texture for most any projects. I have used it on other applications too. It's nice that it's a versatile project that I can use for almost anything!

### ⭐⭐⭐⭐⭐ Worked great
*by F***R on September 16, 2016*

This did what I expected. I have a 1976 Volkswagen Beetle convert. that I am fixing up. The rubber on the running boards was dried out and discolored, along with some splits in the rubber showing bare metal underneath. It was going to cost well over two hundred dollars each to replace them, so I thought I'd try Flex Seal. After cleaning and drying the running boards I applied the product with a small paintbrush. It went on easily,covered really well, and small "oops" we're easily wiped up with a cleaning cloth. I allowed a drying time of 24 hours and just now went out and filled in the split areas with a little more product and smoothed it out with the brush. It looks fantastic! I took a couple pictures which don't do it justice. It dried really shiny, and looks wet although it's dry and looks and feels like rubber. Some tips: I first stirred it very well because I could tell it was thick at the bottom of the can. It was easy to stir up though. When I was finished with the project yesterday, I replaced the can lid and tapped it on tightly. My brush I wanted to use again for today's touch up, so I sealed it in tin foil. When I opened the can again today it was ready to go but is tired it again anyway. There was no "skin" on top, and no lumps. My brush was only slightly stiff and I was able to use it again. I used about half a can of the product to do both running boards and am very pleased with how they look!

### ⭐⭐⭐⭐ 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

---

## 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.us/products/24980581-flex-seal-liquid-rubber-coating-sealant-waterproof-flexible-breathable-uv](https://www.desertcart.us/products/24980581-flex-seal-liquid-rubber-coating-sealant-waterproof-flexible-breathable-uv)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-13*