---
product_id: 64620398
title: "8 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs"
brand: "flex tape"
price: "£22.55"
currency: GBP
in_stock: true
reviews_count: 8
category: "Flex Tape"
url: https://www.desertcart.co.uk/products/64620398-8-in-x-5-ft-gray-original-thick-flexible-rubberized
store_origin: GB
region: United Kingdom
---

# Waterproof & works underwater UV resistant & extreme temp range 8 in x 5 ft thick rubberized tape 8 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs

**Brand:** flex tape
**Price:** £22.55
**Availability:** ✅ In Stock

## Summary

> 💪 Seal it. Fix it. Own it. The ultimate tape for unstoppable pros.

## Quick Answers

- **What is this?** 8 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs by flex tape
- **How much does it cost?** £22.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/64620398-8-in-x-5-ft-gray-original-thick-flexible-rubberized)

## Best For

- flex tape enthusiasts

## Why This Product

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

## Key Features

- • **Weatherproof Warrior:** UV resistant and built to withstand extreme temperatures year-round.
- • **Versatile Fix-It Magic:** Ideal for home, RV, roof, plumbing, pool, and outdoor repairs.
- • **Industrial-Grade Adhesion:** Super strong grip that won’t let go, even on tough materials like metal and glass.
- • **Unmatched Waterproof Power:** Seals leaks instantly—even underwater, no drying needed.
- • **Flexible Strength for Any Surface:** Thick, rubberized backing molds perfectly to curves and cracks.

## Overview

Flex Tape is a premium 8-inch by 5-foot thick, flexible rubberized tape designed to seal, patch, and repair leaks instantly. Waterproof and effective underwater, it adheres strongly to a wide range of materials including metal, glass, wood, and plastic. UV resistant and durable in extreme temperatures, Flex Tape is the go-to solution for indoor and outdoor projects, from plumbing to pool repairs.

## Description

Product description Holds On Tight. Flex Tape features a powerful adhesive with a thick, flexible rubberized backing. Stops Leaks Instantly. It conforms to virtually any shape or surface. Seals Out Air & Water. Indoors or outdoors, Flex Tape keeps everything dry and secure. Stands Up to the Elements. It’s UV resistant and withstands extreme temperature and weather conditions. It Even Works Underwater! Make repairs on a wide range of wet or dry surfaces. Perfect for pools, boats, and more. Made in the USA. Proudly made in America, using globally sourced products. DIRECTIONS CUT. Leave backing on tape and cut to desired dimension. Use a high-quality razor blade. PEEL. Remove the backing from the tape. STICK. Apply tape to a clean surface and press down firmly. SEAL. Using plastic squeegee or roller remove any air pockets.

Review: It sticks! - Used to patch a seat that had lost some of its cover material. Made a mistake and touched some of the backing against itself. The adhesive is so strong I could not get it apart. It sticks,
Review: Literally Fixed A Hole In My DW - Somehow the coil burned through the bottom of my DW. I dont know. Anyway, saw infomercials for this stuff forever, you know, you can stop a sinking boat with this stuff. So i got it, cut a square to cover the hole in my DW and VOILA! Fixed! I will say that the coil burned through this stuff as well at some point, but i just threw on another patch and we are good to go! Basically macgyver stuff.

## Features

- Flex Tape is a super strong, rubberized, waterproof tape that can patch, bond, seal and repair virtually everything!
- Flex Tape is specially formulated with a thick, flexible, rubberized backing that conforms to any shape or object!
- Flex Tape can be applied hot or cold, wet or dry, even underwater!
- Flex Tape instantly seals out water, air and moisture to create a super strong, flexible, watertight barrier!
- Flex Tape is Uv resistant, environmentally friendly, Voc-free and has a wide temperature range so it can be used in extreme weather conditions!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07D2J61QD |
| Best Sellers Rank | #53,410 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #401 in Duct Tape |
| Brand | Flex Tape |
| Brand Name | Flex Tape |
| Color | Gray |
| Compatible Material | Acrylic, Alloy Steel, Aluminum, Ceramic, Glass, Metal, Plastic, Polyvinyl Chloride, Rubber, Stone, Vinyl, Wood |
| Customer Reviews | 4.2 out of 5 stars 330 Reviews |
| Item Resistance | Environmental, Underwater |
| Item Thickness | 39 Mils |
| Item Weight | 0.71 Pounds |
| Manufacturer | Swift Response, LLC |
| Material | Rubber |
| Material Type | Rubber |
| Model | TFSGRYR0805 |
| Number of Items | 1 |
| Other Special Features of the Product | Strong |
| Part Number | TFSGRYR0805 |
| Recommended Uses For Product | Indoor, Outdoor, Plumbing, Electrical |
| Size Name | 8 inches x 5 feet x 0.039 inches |
| Special Feature | Strong |
| Surface Recommendation | Glass, Metal, Plastic, Stone, Wood |
| Unit Count | 5.0 Feet |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Flex Tape
- **Color:** Gray
- **Material:** Rubber
- **Number of Items:** 1
- **Recommended Uses For Product:** Indoor, Outdoor, Plumbing, Electrical

## Images

![8 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs - Image 1](https://m.media-amazon.com/images/I/61VKIPrwE0L.jpg)
![8 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs - Image 2](https://m.media-amazon.com/images/I/91tQymTjuqL.jpg)
![8 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs - Image 3](https://m.media-amazon.com/images/I/91TtA5DQ1vL.jpg)
![8 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs - Image 4](https://m.media-amazon.com/images/I/81npqVc84DL.jpg)
![8 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs - Image 5](https://m.media-amazon.com/images/I/81MqzlUWGBL.jpg)

## Questions & Answers

**Q: Can flex seal tape over up patches on iron roof?**
A: Hey there, thank you so much for the FLEXcellent question. The Flex Tape is a super-strong, waterproof tape that can patch, bond, seal, and repair virtually anything. It is perfect for a project like this. If you have any questions or need help on your project, please message us at Humans@FlexSealProducts.com. Take care and Flex On!

**Q: Sticky residue removing it ? I need to seal an outdoor box from the elements & be able to crack the seal and check the components from time to time.**
A: I would not recommend using Flex Tape if you need to open a box sealed with it. Once it adheres to something it is pretty much there to stay. I used it to temporally stop a leak in a copper pipe. When I tried to remove the tape I had to use a razor blade to cut and scrape the tape away from the pipe.

**Q: One reviewer said this stuff does not adhere to vinyl. Is that true or not?  I just ordered some to repair vinyl. Also, how thick is it?**
A: Flex Tape is about 1 millimeter thick. Flex Tape does adhere to some vinyl materials. It ultimately depends on whether or not the vinyl contains what are called poly-olefins. A Poly-olefin is a polymer which by its very nature resists proper adhesion. Different plastics and vinyl can contain differing amounts of this polymer and therefore we recommend testing on a small area first. Please contact the company directly if ever you have any questions or concerns. Flex Seal is a company that is well known for taking care of its customers and we strive for 100% customer satisfaction. Thank you for your interest in the Flex Seal Family of Products.

**Q: Would this work on a Boat Cover?**
A: Hi there! Flex Tape has excellent adhesion on many surfaces including PVC, acrylic, metal, steel, copper, aluminum, wood, ceramic, porcelain, tile, glass, rubber, fiberglass, stucco, plaster, stone, cement, concrete, dry wall, EPDM roofs, some plastics, fabrics, some vinyl and so much more. Some materials may take up to 24 hours to reach maximum hold. We recommend testing on a small section before the complete application. Depending on the amount of damage, it may help to apply the tape to both sides or in multiple layers as needed, since it does adhere to itself. Please message our FLEXperts if you have any other questions we can help with. Flex On!

## Customer Reviews

### ⭐⭐⭐⭐⭐ It sticks!
*by R***S on November 5, 2023*

Used to patch a seat that had lost some of its cover material. Made a mistake and touched some of the backing against itself. The adhesive is so strong I could not get it apart. It sticks,

### ⭐⭐⭐⭐⭐ Literally Fixed A Hole In My DW
*by A***A on November 25, 2019*

Somehow the coil burned through the bottom of my DW. I dont know. Anyway, saw infomercials for this stuff forever, you know, you can stop a sinking boat with this stuff. So i got it, cut a square to cover the hole in my DW and VOILA! Fixed! I will say that the coil burned through this stuff as well at some point, but i just threw on another patch and we are good to go! Basically macgyver stuff.

### ⭐⭐⭐⭐ Pool
*by T***M on April 28, 2024*

Love the adhesion properties of the tape but I had difficulty removing the film over the the tape on one of the rolls. Returned & waiting to apply the replacement

## Frequently Bought Together

- Flex Tape, 8 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs
- Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Clear, 8 in x 5 ft, Pack of 1

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**Shop now:** [https://www.desertcart.co.uk/products/64620398-8-in-x-5-ft-gray-original-thick-flexible-rubberized](https://www.desertcart.co.uk/products/64620398-8-in-x-5-ft-gray-original-thick-flexible-rubberized)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-22*