---
product_id: 58927278
title: "Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Gray, 4 in x 5 ft, Pack of 1"
brand: "flex tape"
price: "249 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Flex Tape"
url: https://www.desertcart.dk/products/58927278-flex-tape-original-thick-flexible-rubberized-waterproof-tape-seal-patch
store_origin: DK
region: Denmark
---

# 100% waterproof, works underwater UV & temperature resistant Thick 39 mil rubberized backing Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Gray, 4 in x 5 ft, Pack of 1

**Brand:** flex tape
**Price:** 249 kr
**Availability:** ✅ In Stock

## Summary

> 🛠️ Flex your fixes with the tape that never quits!

## 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, Gray, 4 in x 5 ft, Pack of 1 by flex tape
- **How much does it cost?** 249 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/58927278-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

- • **Works Wet or Dry:** Applies seamlessly even underwater or on damp surfaces for ultimate versatility.
- • **All-Weather Ready:** UV resistant and performs in extreme temperatures, perfect for indoor/outdoor use.
- • **Seal Leaks Instantly:** Creates a watertight, flexible barrier that stops leaks on contact.
- • **Heavy-Duty Flexibility:** Thick, rubberized tape conforms to any shape, ensuring a strong, lasting bond.
- • **Multi-Surface Compatibility:** Bonds to metal, wood, plastic, concrete, and more—your go-to repair tape.

## Overview

Flex Tape is a premium, thick rubberized waterproof tape designed to seal, patch, and repair leaks instantly. Its 39 mil flexible backing adheres to a wide range of surfaces, works underwater, and withstands extreme weather conditions, making it an essential tool for home, RV, plumbing, roofing, and 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: Nice product - Works, but hard to pull off roll.
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 | B07B6CM4SL |
| Adhesive Format | Strip |
| Adhesive Location | Single Sided |
| Adhesive Side Count | 1 |
| Best Sellers Rank | #177 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Duct Tape |
| Brand | Flex Tape |
| Brand Name | Flex Tape |
| Color | Gray |
| 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. |
| Configuration | configuration |
| Customer Reviews | 4.1 out of 5 stars 20,094 Reviews |
| Global Trade Identification Number | 00852808007978 |
| Included Components | Sealant |
| Item Dimensions L x W x Thickness | 4"L x 4"W x 0.06"Th |
| Item Resistance | waterproof |
| Item Thickness | 39 Mils |
| Item Type Name | Flex Tape Rubberized Waterproof Tape, 4" x 5', Gray |
| Manufacturer | Swift Response, LLC |
| Material | Rubber |
| Material Type | Rubber |
| Model | TFSGRYR0405 |
| Number of Items | 1 |
| Other Special Features of the Product | Strong |
| Part Number | TFSGRYR0405 |
| Recommended Uses For Product | Outdoor, Plumbing |
| Size Name | 4x5 inch (Pack of 1) |
| Special Feature | Strong |
| Surface Recommendation | 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. |
| UPC | 852639008038 852808007978 852808007619 |
| Unit Count | 1.0 Count |
| Warranty Description | EMW6715163 |
| Water Resistance Level | Waterproof |

## Product Details

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

## Images

![Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Gray, 4 in x 5 ft, Pack of 1 - Image 1](https://m.media-amazon.com/images/I/81LtwZSjisL.jpg)
![Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Gray, 4 in x 5 ft, Pack of 1 - Image 2](https://m.media-amazon.com/images/I/91FaU7CaB5L.jpg)
![Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Gray, 4 in x 5 ft, Pack of 1 - Image 3](https://m.media-amazon.com/images/I/81I+Bnyj2+L.jpg)
![Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Gray, 4 in x 5 ft, Pack of 1 - Image 4](https://m.media-amazon.com/images/I/91otjNadoJL.jpg)
![Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Gray, 4 in x 5 ft, Pack of 1 - Image 5](https://m.media-amazon.com/images/I/914Uv+bh0yL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will it work on my lanai screen?**
A: Yes. Since the screen is a porous material, we would recommend applying Flex Tape to both sides of the hole or tear thus creating an incredibly strong bond. For best results, start with a clean surface free of grease, oil and dirt. Apply firm pressure smoothing out all air bubbles. Once applied, Flex Tape provides a strong yet flexible waterproof bond that, unlike most tapes on the market, increases overtime. Thank you for your interest in the Flex Seal Family of Products.

**Q: Will it work on resin outdoor furniture**
A: There are certain plasticized materials that contain olefins that by their very nature constantly release chemicals that ultimately resist proper adhesion.  It is my understanding that resin furniture is usually made of a particular plastic called high-density polyethylene which contains olefins. Therefore, it may not adhere properly. It may still perform but I would test a small area first.  For best results, start with a clean surface free of grease, oil, dirt and algae. Apply with firm pressure smoothing out all air bubbles.

**Q: can I use flextape to patch a  big tear in the canopy swing seat ?  Would it hold the weight of someone sitting there?**
A: The larger the tear the bigger the issue maybe if someone can sit on it without tearing it further. When applying the Flex Tape we recommend applying it on both sides of the tear. One on top and one on the bottom to ensure a stronger bond and give you more protection from the tear.

**Q: Can it be used to wrap sharkbite plumbing connectors for underground use?**
A: I used it on my pool wall and liner under water for the liner and it solved the leak it’s amazing

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice product
*by B***R on February 10, 2026*

Works, but hard to pull off roll.

### ⭐⭐⭐⭐⭐ Thick, Strong, and Truly Waterproof
*by M***E on March 26, 2026*

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.

### ⭐⭐⭐⭐ CHECK THE COLOR FIRST
*by B***. on March 7, 2026*

This is a GREAT PRODUCT and fit the bill for what I bought it for. Only reason for the 4 stars and not 5 is the advertised color. As you can see in the picture it IS NOT "CLEAR" like you'd thing, i:e packaging tape. It's a milky clear. I have a 6 year old zero turn mower. The seat seam threading failed on the right side of the seat, the leather opened up exposing the padding. Knowing this product is impervious to water, I figured I'd try it. It adhered to the leather fantastic, but I didn't like the color. If I had known it wasn't "see through clear", I would've went with gray to match the seat better. Oh, well. The most important thing is preserving the function of the seat for a few more years, and I think this will do just great.

## 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, Gray, 4 in x 5 ft, Pack of 1
- 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
- Flex Seal Liquid, 16 oz, Clear, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry

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**Shop now:** [https://www.desertcart.dk/products/58927278-flex-tape-original-thick-flexible-rubberized-waterproof-tape-seal-patch](https://www.desertcart.dk/products/58927278-flex-tape-original-thick-flexible-rubberized-waterproof-tape-seal-patch)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-06-02*