---
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: "€ 28.66"
currency: EUR
in_stock: true
reviews_count: 13
category: "Flex Tape"
url: https://www.desertcart.fi/products/58927278-flex-tape-original-thick-flexible-rubberized-waterproof-tape-seal-patch
store_origin: FI
region: Finland
---

# 100% waterproof, works underwater UV & temperature resistant, extreme weather ready 39 mils thick, ultra-durable 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:** € 28.66
**Availability:** ✅ In Stock

## Summary

> 🛠️ Flex Tape: The ultimate fix-it flex for every leak, every time!

## 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?** € 28.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/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 underwater or on dry surfaces—no prep needed.
- • **Seal Leaks Instantly:** Creates a watertight, airtight barrier in seconds to stop leaks fast.
- • **All-Weather Durability:** UV resistant and performs in freezing cold or scorching heat without losing grip.
- • **Flexible & Conformable:** Thick rubberized tape molds to any shape or surface for a perfect fit.
- • **Multi-Surface Compatibility:** Bonds to metal, wood, PVC, glass, tile, fabric, and more—your go-to repair tape.

## Overview

Flex Tape is a thick, rubberized, waterproof tape designed to patch, seal, and repair leaks instantly—even underwater. With a 39 mil thickness and UV-resistant formula, it withstands extreme temperatures and bonds to a wide range of surfaces including metal, wood, PVC, and fabric. Ideal for indoor and outdoor use, it’s the trusted emergency solution for home, RV, plumbing, roofing, and pool repairs.

## Description

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: desertcart.com: Industrial & Scientific

Review: Nice product - Works, but hard to pull off roll.
Review: tape - stopped a leak on Christmas Eve between hot water heater and the main house heat boiler. very cold out and little chance of a plumber.

## 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 |
| Best Sellers Rank | #3,755 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #41 in Duct Tape |
| Brand | 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 |
| Date First Available | March 5, 2018 |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00852808007978 |
| Is Discontinued By Manufacturer | No |
| Item Resistance | waterproof |
| Item Thickness | 39 Mils |
| Item Weight | 5.3 ounces |
| Item model number | TFSGRYR0405 |
| Manufacturer | Swift Response, LLC |
| Material | Rubber |
| Number of Items | 1 |
| Product Dimensions | 4"L x 4"W x 0.06"Th |
| Recommended Uses For Product | Outdoor, Plumbing |
| Size | 4" x 5' (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 | 5.0 Feet |
| 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)

## Available Options

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

### ⭐⭐⭐⭐⭐ tape
*by W***L on February 14, 2026*

stopped a leak on Christmas Eve between hot water heater and the main house heat boiler. very cold out and little chance of a plumber.

### ⭐ It lived up to neither their advertising claims, nor my low/realistic expectations
*by M***G on June 9, 2021*

Meh. It's kind of hard to work with and didn't live up to expectations. The glue is very tacky, which I was initially pleased with, since I planned to use this to seal a crack in the pipe that runs to our garden spigot until my landlord could get a plumber out to fix this (the garden spigot isn't exactly a priority for him, so this wasn't going to be done soon). This stuff didn't work at all the first time, which I thought was just an application issue on my part, so I tried again... then again... Then I went to the hardware store like I should have the first time. For the first attempt, I cleaned the pipe thoroughly and it was completely dry. I cut off enough to wrap around the pipe, covering the small <1/4" split with the entire width of the tape and wrapped about 3" of tape around the pipe to securely hold it. I wrapped it tightly and smoothed out any air bubbles as I went to ensure the tape was making good contact on the pipe for it's full length. The moment the water turned on, it started spraying out of the ends where the tape met the starting point. I tried doing it a second time, this time drying the pipe again, new piece of tape about the same length, but this time I used a screw driver to use as a kind of bone tool to press the tape together at that first seam, thinking the tacky glue just needed to make contact and seal the little spot where the tape met itself. I also smoothed out air bubbles as I wrapped it. Still no luck. Third time, I took off the tape from before, cut only enough to warp around the pipe, so the ends didn't touch each other. Oddly enough, this worked... for a couple of hours of use. I had been turning the water valve on/off as I needed the hose, so the tape wasn't under constant pressure, thinking I could prolong it's use, but it lasted about 3 hours before a water bubble formed under the tape. Just like a balloon, once it started inflating, it continued until the bubble reached the edge of the tape and it was done for. If you need this for plumbing, I'd recommend against it. Just go to the hardware store and buy a pipe repair clamp and be done with it. The repair clamp was about $11 and has been holding like a CHAMP for 2 weeks now, this was $13 and seems like it doesn't meet even their own claims. Also note the description says the bond is permanent after 24 hours and cannot be removed... That's not true. It's as easy to remove after 2 days as it was after 2 hours. And if you have trouble getting the adhesive off of your scissors or knife, just use Goo Gone and it'll come right off. The adhesive oddly enough sticks to EVERYTHING you don't want it to stick to and scissors WILL get gunky after the first cut. Goo Gone will save your tools from this mistake of a purchase.

## 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
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- 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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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-26*