---
product_id: 256348929
title: "Flex Seal, 14 oz, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More"
brand: "flex seal"
price: "R$520"
currency: BRL
in_stock: true
reviews_count: 6
category: "Flex Seal"
url: https://www.desertcart.com.br/products/256348929-flex-seal-14-oz-black-stop-leaks-instantly-waterproof-rubber
store_origin: BR
region: Brazil
---

# Instant waterproof seal Durable weatherproof coating 14 oz powerful spray Flex Seal, 14 oz, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More

**Brand:** flex seal
**Price:** R$520
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Flex Seal, 14 oz, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More by flex seal
- **How much does it cost?** R$520 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/256348929-flex-seal-14-oz-black-stop-leaks-instantly-waterproof-rubber)

## 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

- • **Compact & Portable:** 14 oz can fits easily in your toolkit for on-the-go emergency repairs.
- • **Trusted by DIY Pros:** Ranked #140 in Hardware Sealers, join thousands who rely on Flex Seal for fast fixes.
- • **Spray & Seal in Seconds:** Effortlessly stops leaks with a quick spray-on application.
- • **Weatherproof & Flexible:** Creates a rubberized, waterproof barrier that flexes with surfaces to prevent cracks.
- • **Versatile Surface Compatibility:** Perfect for gutters, wood, RVs, roofs, skylights, and windows—one product, endless fixes.

## Overview

Flex Seal is a 14-ounce black rubber spray sealant designed to instantly stop leaks and waterproof a variety of surfaces including gutters, wood, RVs, roofs, skylights, and windows. Its durable, flexible coating withstands weather conditions, making it a trusted choice for quick, reliable home and outdoor repairs.

## Description

Flex Seal Spray Rubber Sealant Coating, 14-oz, Black (1 Pack)

Review: Poor prodect - Not useable
Review: Good

## Features

- manufacturer: Generic
- Item Trademark: GENERIC
- Item Weight: ounces, pounds, 0.875000, 14.00
- Item Category: Beauty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00CD9FGNW |
| Best Sellers Rank | #25,650 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #140 in Hardware Sealers |
| Department | Caulks & Sealants |
| Item model number | FLEX SEAL - FSR20 |
| Manufacturer | Swift Response, LLC |
| Product Dimensions | 24.13 x 6.35 x 6.35 cm; 396.89 g |

## Product Details

- **Brand:** Flex Seal
- **Item dimensions L x W x H:** 24.1 x 6.4 x 6.4 centimeters
- **Item weight:** 14 Ounces
- **Material:** Plastic
- **Style:** Black, 14 oz, 1-Pack

## Images

![Flex Seal, 14 oz, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More - Image 1](https://m.media-amazon.com/images/I/714CsyAzCZL.jpg)

## Available Options

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

## Questions & Answers

**Q: The grout throughout the rim area between the glass and the metal frame of my glass windows has deteriorated and leaks.  Will it seal this?**
A: Hello, thank you for reaching out! Many people have had success using https://www.amazon.com/dp/B00OX6OU5S to seal their grout.

**Q: I have a leak on my shower drain, would this work to seal the leak on PVC pipe?**
A: Yes many people have had great success sealing their pipes with Flex Seal.

**Q: Will flex seal work on concrete? I have a leak in my koi pond, would flex seal hold the leak while being underwater?**
A: Yes many people have had great success using Flex Seal on concrete.  We recommend using Flex Seal Liquid on your koi pond though since it is plant and animal safe.  Flex Seal in the aerosol can is not animal safe.

**Q: I have a couple of cracks in a  plastic pond shell.  Around 100 gallon pond.  Would this seal them?**
A: the tape might do the job--I sprayed on to a faux leather chair -- it's peeling off--I might get more  tape seal..

## Customer Reviews

### ⭐ Poor prodect
*by A***F on 18 June 2021*

Not useable

### ⭐⭐⭐⭐⭐ Review
*by D***L on 27 December 2023*

Good

### ⭐⭐⭐⭐⭐ Review
*by S***O on 7 April 2021*

Produto resolveu um problema entre a calha e a parede evitando escorrimento de água da chuva mostrou-se mais eficiente que o veda calha. Esperar para ver a durabilidade do produto sob as intempéries.

## Frequently Bought Together

- Flex Seal, 14 oz, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More
- Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Black, 4 in x 5 ft, Pack of 1

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**Shop now:** [https://www.desertcart.com.br/products/256348929-flex-seal-14-oz-black-stop-leaks-instantly-waterproof-rubber](https://www.desertcart.com.br/products/256348929-flex-seal-14-oz-black-stop-leaks-instantly-waterproof-rubber)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-28*