---
product_id: 11308291
title: "Rubber Flexx – Waterproof Repair & Sealant Spray - Point & Spray to Seal Cracks, Holes, Leaks, Corrosion & More | Black – 1 Bottle 18oz"
brand: "leak stopper"
price: "$44.52"
currency: USD
in_stock: true
reviews_count: 8
category: "Leak Stopper"
url: https://www.desertcart.us/products/11308291-rubber-flexx-waterproof-repair-and-sealant-spray-point-and-spray
store_origin: US
region: United States of America
---

# 18oz waterproof spray flexible rubberized coating temperature resistant - wet/dry Rubber Flexx – Waterproof Repair & Sealant Spray - Point & Spray to Seal Cracks, Holes, Leaks, Corrosion & More | Black – 1 Bottle 18oz

**Brand:** leak stopper
**Price:** $44.52
**Availability:** ✅ In Stock

## Summary

> 💪 Seal it, forget it—leaks don’t stand a chance!

## Quick Answers

- **What is this?** Rubber Flexx – Waterproof Repair & Sealant Spray - Point & Spray to Seal Cracks, Holes, Leaks, Corrosion & More | Black – 1 Bottle 18oz by leak stopper
- **How much does it cost?** $44.52 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/11308291-rubber-flexx-waterproof-repair-and-sealant-spray-point-and-spray)

## Best For

- leak stopper enthusiasts

## Why This Product

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

## Key Features

- • **Corrosion & UV Resistant:** Defends surfaces from moisture, rust, and sun damage—your all-weather shield.
- • **Seal Leaks Anywhere, Anytime:** Point & spray to instantly lock out leaks on roofs, pipes, gutters, and more.
- • **Fast & Effortless Application:** No mess, no fuss—spray on and watch it dry to a watertight seal in minutes.
- • **Flexible & Durable Protection:** Rubberized coating stays pliable for years—no cracking or peeling in heat or cold.
- • **Paintable Finish for Seamless Repairs:** Top-coat with latex or alkyd paint for a flawless, professional look.

## Overview

Leak Stopper Rubber Flexx is an 18oz waterproof repair spray that creates a flexible, rubberized seal on cracks, holes, and leaks. It works on wet or dry surfaces, resists extreme temperatures, and can be painted over for a clean finish. Ideal for roofs, pipes, gutters, and more, it offers quick, durable protection against moisture and corrosion.

## Description

Leak Stopper Rubber Flexx – Waterproof Repair & Sealant Spray – Black is a convenient spray patch and repair sealant that dries white. This multi-purpose product allows for quick repairs across a variety of surfaces. The rubberized finish stays flexible to withstand a range of temperature. Just point and spray to make basic repairs on wood, asphalt wooding, metal and masonry surfaces.

Review: Wood sealer - This rubber based sealer works perfectly for sealing deck support rails to accept the deck planks.
Review: Works Great - Easy to use, great value for the price.

## Features

- ✔ SEAL LEAKS ANYWHERE! Seal even the toughest leaks. Deeps into cracks and holes. Dries to a watertight, flexible, rubberized coating. Stays flexible and pliable; lasts many years. It is ideal for a variety of roof surfaces including shingles, metal roofs, chimneys, skylights, gutters, pipes, and many other surfaces.
- ✔ STOP LEAKS FAST! Transform and protect virtually everything! Ideal for arts & crafts, projects & hobbies. Spray a patch and repair sealant that dries white. It allows for quick repairs across a variety of surfaces.
- ✔ WITHSTAND A RANGE OF TEMPERATURES. Can be used on dry or wet surfaces. Protects surface from corrosion, can be used on wet or dry surfaces
- ✔ PAINTABLE. Will not sag or drip in the Summer heat. Will not crack or peel in the Winter cold. Surfaces applied will give you a clear coating to paint over. Dries to a semi-smooth firm finish. Can be top-coated with latex or alkyd based paints
- ✔ EASY TO USE! Just point and spray to make basic repairs. It provides a water-tight, flexible seal that prevents moisture penetration and corrosion. It is UV resistant and solvent free.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00APL6TBI |
| Best Sellers Rank | #14,864 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #109 in Industrial Sealants |
| Brand | Leak Stopper |
| Color | Black |
| Date First Available | September 1, 2004 |
| Department | All Ages |
| Global Trade Identification Number | 00025056031600 |
| Is Discontinued By Manufacturer | No |
| Item Form | item_form |
| Item Weight | 1 pounds |
| Item dimensions L x W x H | 2.6 x 2.6 x 9.5 inches |
| Item model number | Leak Stopper |
| Manufacturer | Leak Stopper |
| Material | 18 Ounce (Pack of 1) |
| Number of Items | 1 |
| Product Dimensions | 2.6 x 2.6 x 9.5 inches |
| Style | Black |
| Surface Recommendation | Roof |
| UPC | 025056031600 |
| Unit Count | 18.0 Ounce |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Leak Stopper
- **Item Weight:** 16 ounces
- **Item dimensions L x W x H:** 2.6 x 2.6 x 9.5 inches
- **Material:** 18 Ounce (Pack of 1)
- **Style:** Black

## Images

![Rubber Flexx – Waterproof Repair & Sealant Spray - Point & Spray to Seal Cracks, Holes, Leaks, Corrosion & More | Black – 1 Bottle 18oz - Image 1](https://m.media-amazon.com/images/I/71NQT6BcgML.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Questions & Answers

**Q: Does this dry to the touch or remain tacky?**
A: I put it one very thin so it is dry to the touch. I put it on the back of my boat carpet, worked very well but we'll see for how long after the summer.

**Q: my roof has a small water leak can i use this to patch her up ?**
A: I would only use it as a temporary fix. Assuming you know exactly where the leak is located on the outside. Water can travel a long way before it drips down. Fifty plus years of owning houses had taught me this.

**Q: What is the lowest outdoor temperature this product can be applied to Asphalt shingles?**
A: I wouldn't try it below 65 degrees F or maybe 60 F is the shingles have been in full sun for at least an hour beforehand.

**Q: Do you make a flex tip for tight areas.**
A: you can

## Customer Reviews

### ⭐⭐⭐⭐⭐ Wood sealer
*by P***N on February 12, 2026*

This rubber based sealer works perfectly for sealing deck support rails to accept the deck planks.

### ⭐⭐⭐⭐⭐ Works Great
*by K***A on January 6, 2026*

Easy to use, great value for the price.

### ⭐⭐⭐⭐ works great with PVC pipe
*by J***E on January 16, 2026*

this stuff is pretty good stuff it worked on PVC pipe and that's where I exactly where I needed it to go

## Frequently Bought Together

- Leak Stopper Rubber Flexx – Waterproof Repair & Sealant Spray - Point & Spray to Seal Cracks, Holes, Leaks, Corrosion & More | Black – 1 Bottle 18oz
- Gorilla Waterproof Patch & Seal Rubberized Sealant Spray, Black, 16 Ounce (Pack of 1) - Seals Out Water, Air, and Moisture
- Loctite Tite Foam Gaps & Cracks White Insulating Foam Sealant 12 fl oz, 1 Can

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-09*