---
product_id: 19609973
title: "Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack"
brand: "flex seal"
price: "¥13813"
currency: JPY
in_stock: true
reviews_count: 13
category: "Flex Seal"
url: https://www.desertcart.jp/products/19609973-flex-seal-spray-rubber-sealant-coating-waterproof-white-14-oz
store_origin: JP
region: Japan
---

# Instant waterproof seal Heat & cold resistant Flexible rubber coating Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack

**Brand:** flex seal
**Price:** ¥13813
**Availability:** ✅ In Stock

## Summary

> 💧 Seal it, forget it — leak-proof your life with Flex Seal!

## Quick Answers

- **What is this?** Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack by flex seal
- **How much does it cost?** ¥13813 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/19609973-flex-seal-spray-rubber-sealant-coating-waterproof-white-14-oz)

## Best For

- flex seal enthusiasts

## Why This Product

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

## Key Features

- • **Paintable Finish:** Dries white and can be painted to match any surface
- • **Flexible & Durable:** Remains pliable for years without cracking or peeling
- • **Seal Leaks Instantly:** Stops leaks fast with a watertight spray-on rubber barrier
- • **Versatile Application:** Perfect for gutters, roofs, RVs, wood, skylights, and more
- • **All-Weather Protection:** Withstands extreme heat and freezing cold without sagging

## Overview

Flex Seal is a 14 oz, 2-pack spray-on rubber sealant that instantly stops leaks by creating a flexible, waterproof coating. Designed for durability, it resists cracking, peeling, and weather extremes, making it ideal for gutters, roofs, RVs, and more. Its paintable white finish blends seamlessly with any project, offering a fast, reliable solution trusted by thousands.

## Description

Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack | Stops leaks fast, seals out water, air, moisture, prevents rust, paintable, flexible, gutters, roof repair, RV, wood, metal - desertcart.com

Review: GOT WATER LEAKS, FLEX SEAL STOPS THE LEAKS !!!!! - I used the Flex Seal on my 21 year old GMC pickup truck where when it rained it would leak the rain water at the driver side of the windshield. I tried taping around the rubber or plastic seal that the glass is set in, but still leaks. Then I saw a Flex Seal commercial on tv and the video up first was sealing a windshield with the "clear" type of Flex seal. After taping all around the windshield with blue painters tape, as you don't want any spray getting on the painted part, I put 3 coats of the "clear" Flex Seal above and below the windshield's rubber seal. Wait about 4 to 6 hours between applying the coats of the Flex Seal. I tested the seal this morning with my water hose...... NO LEAKS ANY WHERE !!!! THIS STUFF WORKS !!!!!! Thank you desertcart FLEX SEAL IS A WINNER !!!!!!
Review: Definetly keeping a can in the camper now - I purchased this 14 oz can of white Flex Seal to repair some cracks on my popup camper’s roof after I accidentally backed into a tree. I was worried about the damage, but this product ended up being the perfect solution for the situation. It went on very easily, and I’ve been impressed with how well it holds up; after 34 days, there are absolutely no signs of peeling or poor adhesion. Most importantly, I haven't seen a single leak from the repaired spot since I applied it. It’s also incredibly discreet, as I can hardly even see where the damage was anymore. It worked perfectly to hide and fix my mistake, and I’m very satisfied with how it turned out.

## Features

- The easy way to coat, seal, protect, and stop leaks fast! Once dry, can be painted any color
- Seeps into cracks and holes. Dries to a watertight, flexible, rubberized coating. Stays flexible and pliable; lasts many years
- Transform and protect virtually everything! Ideal for arts & crafts, projects & hobbies
- Protects surface from corrosion, can be used on wet or dry surfaces
- Will not sag or drip in the Summer heat. Will not crack or peel in the Winter cold
- Perfect for Gutters, Wood, RV, Campers, Roof Repairs, Skylights, Windows, and more

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00W5Y2X36 |
| Best Sellers Rank | #142 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Hardware Sealers |
| Brand | Flex Seal |
| Brand Name | Flex Seal |
| Color | White |
| Compatible Material | Rubber |
| Customer Reviews | 4.4 out of 5 stars 39,676 Reviews |
| Global Trade Identification Number | 00810129871333 |
| Included Components | Flex Seal Spray Rubber Sealant Coating, 14-oz, White (2 Pack) |
| Item Dimensions | 9.5 x 2.5 x 2.5 inches |
| Item Form | Spray |
| Item Weight | 2 pounds |
| Item dimensions L x W x H | 9.5 x 2.5 x 2.5 inches |
| Manufacturer | Swift Response, LLC |
| Material | Rubber |
| Material Type | Rubber |
| Model | FSWHTR20 |
| Number of Items | 2 |
| Number of Packs | 2 |
| Part Number | FSWHTR20 |
| Style | FSWHTR20-A-2PK |
| Style Name | FSWHTR20-A-2PK |
| Surface Recommendation | Roof |
| UPC | 810129871333 |
| Unit Count | 28 Fluid Ounces |
| Warranty Description | As Labeled |
| Water Resistance Level | Waterproof |

## Product Details

- **Material:** Rubber
- **Brand:** Flex Seal
- **Style:** FSWHTR20-A-2PK
- **Item Weight:** 2.3 Pounds
- **Item dimensions L x W x H:** 9.5 x 2.5 x 2.5 inches

## Images

![Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack - Image 1](https://m.media-amazon.com/images/I/81jVN9WiBTL.jpg)
![Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack - Image 2](https://m.media-amazon.com/images/I/81+S7EFgt1L.jpg)
![Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack - Image 3](https://m.media-amazon.com/images/I/81azY31U45L.jpg)
![Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack - Image 4](https://m.media-amazon.com/images/I/81LRFvL+R0L.jpg)
![Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack - Image 5](https://m.media-amazon.com/images/I/71rHDTCIKtL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can you use this Flex seal too caulk around your window frames? (more like a insulation)?, or stop a small draft creeping thru your window pane?**
A: I'm sure you can. I have a waterwheel and trough. I sealed the trough, as it was leaking in several places. Even though water runs rapidly down the trough, I've had no leaking now for 2 years. I also used it to seal a leak on my ATV tir rim. The rim had a slight curve and wouldn't hold air. I sealed the sot that was leaking and it worked perfectly.

**Q: I have a leak in my car trunk, can this be used?**
A: It really depends on why there is a leak, but probably not. If it's the weather stripping around the trunk (that rubber tubing stuff), I doubt that this stuff will replace or repair that. That's the most likely reason you have a leak. The seal needs replacing.

**Q: Can it be used on concrete?**
A: Yes you can use Flex Seal on concrete.

**Q: I would like to use this to refinish and seal up a mobile home bathtub. Does it clean easily? Will it hold up to the constant use of a bathtub?**
A: It will definitely seal and refinish the tub.
I’m not sure about easy clean up as I only used it on a boat but it should clean up nicely as it seems to be self leveling spray and is very smooth when completely cured

## Customer Reviews

### ⭐⭐⭐⭐⭐ GOT WATER LEAKS, FLEX SEAL STOPS THE LEAKS !!!!!
*by H***Y on July 29, 2026*

I used the Flex Seal on my 21 year old GMC pickup truck where when it rained it would leak the rain water at the driver side of the windshield. I tried taping around the rubber or plastic seal that the glass is set in, but still leaks. Then I saw a Flex Seal commercial on tv and the video up first was sealing a windshield with the "clear" type of Flex seal. After taping all around the windshield with blue painters tape, as you don't want any spray getting on the painted part, I put 3 coats of the "clear" Flex Seal above and below the windshield's rubber seal. Wait about 4 to 6 hours between applying the coats of the Flex Seal. I tested the seal this morning with my water hose...... NO LEAKS ANY WHERE !!!! THIS STUFF WORKS !!!!!! Thank you AMAZON FLEX SEAL IS A WINNER !!!!!!

### ⭐⭐⭐⭐⭐ Definetly keeping a can in the camper now
*by D***Y on July 6, 2026*

I purchased this 14 oz can of white Flex Seal to repair some cracks on my popup camper’s roof after I accidentally backed into a tree. I was worried about the damage, but this product ended up being the perfect solution for the situation. It went on very easily, and I’ve been impressed with how well it holds up; after 34 days, there are absolutely no signs of peeling or poor adhesion. Most importantly, I haven't seen a single leak from the repaired spot since I applied it. It’s also incredibly discreet, as I can hardly even see where the damage was anymore. It worked perfectly to hide and fix my mistake, and I’m very satisfied with how it turned out.

### ⭐⭐⭐⭐ For the right job, it's the tool
*by R***K on April 29, 2026*

Left no room for doubt that this is liquefied rubber in an aerosol. Be careful to get the Right Tool for the job. Check their "store" on Amazon- interesting discoveries there. For waterproofing / moisture barrier I would consider this again if a thin layer is adequate. May need to develop some application "technique" in some instances. My unusual situation involved some gaps that were worse than I anticipated. It's thin. Layering onto partially dry base layers to bulk it up did work but it's tricky until you find the way. I should have had silicone caulk on hand too but this seals hairline gaps nicely. With clear version, it's hard to see what's happening & to avoid waste or a running mess. Clogging is not a problem you'll likely have. As you might expect, liquid rubber involves intense solvents. You cannot over ventilate when using this. Plan ahead if using indoors.

## Frequently Bought Together

- Flex Seal, 14 oz, 2-Pack, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More
- Flex Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack
- Flex Paste, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Half-Quart

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-29*