---
product_id: 38442147
title: "Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, White, 4 in x 5 ft, Pack of 1"
brand: "flex tape"
price: "£17.87"
currency: GBP
in_stock: true
category: "Flex Tape"
url: https://www.desertcart.co.uk/products/38442147-flex-tape-original-thick-flexible-rubberized-waterproof-tape-seal-patch
store_origin: GB
region: United Kingdom
---

# UV resistant for outdoor durability Waterproof & works underwater 50 lbs tensile strength Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, White, 4 in x 5 ft, Pack of 1

**Brand:** flex tape
**Price:** £17.87
**Availability:** ✅ In Stock

## Summary

> 💪 Seal it, fix it, forget it — Flex Tape’s got your back!

## Quick Answers

- **What is this?** Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, White, 4 in x 5 ft, Pack of 1 by flex tape
- **How much does it cost?** £17.87 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/38442147-flex-tape-original-thick-flexible-rubberized-waterproof-tape-seal-patch)

## 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

- • **Unmatched Strength:** Withstands up to 50 lbs of tensile force for heavy-duty repairs.
- • **All-Weather Warrior:** UV resistant and functional in extreme temperatures, indoors or outdoors.
- • **Flexible & Conformable:** Thick rubberized backing molds to any shape or surface effortlessly.
- • **Instant Waterproof Seal:** Seals leaks immediately—even underwater—for total peace of mind.
- • **Versatile Surface Compatibility:** Bonds to PVC, metal, wood, glass, fabric, and more—your go-to fix-it tape.

## Overview

Flex Tape is a thick, rubberized, waterproof tape designed to patch, bond, and seal leaks instantly. With a tensile strength of 50 lbs, UV resistance, and the ability to work underwater or on wet surfaces, it’s engineered for versatile indoor and outdoor repairs across a wide range of materials. Perfect for professionals and DIYers who demand reliable, long-lasting fixes.

## Description

desertcart.com: Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, White, 4 in x 5 ft, Pack of 1 : Industrial & Scientific

Review: Do not use before confession! - This stuff is so sticky it's dangerous. I am quite statistically challenged when it comes to pulling something off well so I've wasted a lot. Advice is to keep it in small pieces that are ready to go right where you want. Once you disconnect it, tear the non-sticky part off well right there if you've ever done something bad and unconsciously you know that it can be ugly you might just smash it right into the middle of your face! I do not even a little believe the commercial with the boat being held together by the stuff, I find putting it on wet surfaces to be more of the put a piece of paper on a wet surface experience still, I carry around for rolls cause it's good for making up whichever headlight or tail light you smash off, nice fits there. It'll fill up cracks (oh heck, maybe that's why she divorced me?"
Review: Thick, Strong, and Truly Waterproof - Flex Tape Original is incredible! It’s thick, flexible, and truly waterproof, making it perfect for sealing and patching leaks quickly. It adheres well to a variety of surfaces and creates a strong, durable seal. I’ve used it on pipes, outdoor equipment, and even minor household repairs, and it works every time.

## 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 | B01N6RNJD6 |
| Adhesive Format | roll |
| Adhesive Location | on_tape |
| Adhesive Side Count | 1 |
| Best Sellers Rank | #128 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Duct Tape |
| Brand | Flex Tape |
| Brand Name | Flex Tape |
| Color | White |
| Compatible Material | 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, Vinyl and More. |
| Customer Reviews | 4.1 out of 5 stars 20,189 Reviews |
| Global Trade Identification Number | 00852808007084 |
| Included Components | Sealant |
| Item Resistance | waterproof |
| Item Thickness | 39 Mils |
| Item Type Name | Flex Tape Rubberized Waterproof Tape, 4" x 5', White |
| Item Weight | 0.37 Pounds |
| Manufacturer | Swift Response, LLC |
| Material | Rubber |
| Material Type | Rubber |
| Model | FLEX SEAL - TFSWHTR0405 |
| Number of Items | 1 |
| Other Special Features of the Product | Uv-Resistant |
| Part Number | TFSWHTR0405 |
| Recommended Uses For Product | Indoor, Outdoor |
| Size Name | 4 in x 5 ft (Pack of 1) |
| Special Feature | Uv-Resistant |
| Surface Recommendation | Various surfaces, including rubber |
| Tensile Strength | 50 Pounds |
| UPC | 852808007084 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |
| Water Resistance Level | Waterproof |

## Product Details

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

## Images

![Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, White, 4 in x 5 ft, Pack of 1 - Image 1](https://m.media-amazon.com/images/I/812lJe50VJL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will it fix a leak on the roof of my RV in the rain**
A: Many people have had success using Flex Tape to repair the roof of their RV in the rain.

**Q: Can the 8" tape be cut in half to use?**
A: Many people have found great success at cutting Flex Tape to a desired size. Leave the backing on tape and cut to desired dimension. Use high quality scissors or razor blade when cutting. We do offer a 4" x 5' tape as well.

**Q: Would this work on a hole I have in my 96 gallon trash can lid that has hail damage?**
A: It sticks pretty well. Its like ducktape with silicone on the back. If its just to cover then maybe. If its to be sealed from water then no. If the holes are small it might be worth a try

**Q: will it stick to painted gutter down spout?**
A: Common Flex Tape Applications:

Leaky roofs and ceilings
Damaged gutters and down spouts
Boats, kayaks, personal watercrafts, canoes, and other outdoor equipment repairs
Repairs for mobile homes, RVs and campers
Leaky PVC and plumbing pipes
Sprinkler system, pool, and spa leaks and repairs
Patch and seal windows, doors, walls, seams, and vents
Repair air ducts and HVAC systems
DIY projects
And much more!

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.co.uk/products/38442147-flex-tape-original-thick-flexible-rubberized-waterproof-tape-seal-patch](https://www.desertcart.co.uk/products/38442147-flex-tape-original-thick-flexible-rubberized-waterproof-tape-seal-patch)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-15*