---
product_id: 38238102
title: "Flex Tape Strong Rubberized Waterproof Tape, Black, 4 in x 5 ft, 1-Pack | Patch, bond, seal, repair, works underwater, strong adhesive, roof leaks, gutters, pipes, pools, boats, RV, UV resistant"
brand: "flex tape"
price: "$32.33"
currency: USD
in_stock: true
reviews_count: 13
category: "Flex Tape"
url: https://www.desertcart.us/products/38238102-flex-tape-strong-rubberized-waterproof-tape-black-4-in-x
store_origin: US
region: United States of America
---

# Waterproof & works underwater Withstands -40°F to 212°F 4 in x 5 ft thick tape Flex Tape Strong Rubberized Waterproof Tape, Black, 4 in x 5 ft, 1-Pack | Patch, bond, seal, repair, works underwater, strong adhesive, roof leaks, gutters, pipes, pools, boats, RV, UV resistant

**Brand:** flex tape
**Price:** $32.33
**Availability:** ✅ In Stock

## Summary

> 💪 Patch it. Seal it. Flex it. The ultimate fix-it tape for every emergency.

## Quick Answers

- **What is this?** Flex Tape Strong Rubberized Waterproof Tape, Black, 4 in x 5 ft, 1-Pack | Patch, bond, seal, repair, works underwater, strong adhesive, roof leaks, gutters, pipes, pools, boats, RV, UV resistant by flex tape
- **How much does it cost?** $32.33 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/38238102-flex-tape-strong-rubberized-waterproof-tape-black-4-in-x)

## 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

- • **Seal Like a Pro:** Instantly creates a watertight, flexible barrier that stops leaks cold.
- • **Weather Warrior:** UV resistant and built to perform in extreme temperatures and conditions.
- • **Underwater Fixer:** Apply it wet or dry—even underwater—for emergency or planned repairs.
- • **Eco-Smart & Durable:** VOC-free, environmentally friendly rubberized tape that lasts and lasts.
- • **Versatile Application:** Bonds to over 20 surfaces from metal to fabric—indoor or outdoor, hot or cold.

## Overview

Flex Tape is a thick, flexible, rubberized waterproof tape measuring 4 inches by 5 feet, designed to seal, patch, and repair leaks instantly. It adheres to a wide range of materials, works underwater, and withstands extreme temperatures from -40°F to 212°F. UV resistant and environmentally friendly, it’s the go-to tape for durable indoor and outdoor repairs on everything from roofs to plumbing.

## Description

Buy Flex Tape, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor - Home RV Roof Plumbing and Pool Repairs, Black, 4 in x 5 ft, Pack of 1: Pool & Deck Repair Products - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Strong - Works great, I've bought it a few times now, very waterproof. Just be sure to use a blade you can throw away after because it will ruin your scissors cutting this. Works just as good as the old commercials promise.
Review: Effective Crack Repair - Simple instructions. Easy to apply. Great product.

## 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 | B01N5Q3G8H |
| Adhesive Format | tape |
| Adhesive Location | one-sided |
| Adhesive Material | rubber |
| Adhesive Side Count | 1 |
| Best Sellers Rank | #907 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Masking Tape #51 in Adhesive Tapes #306 in Hardware |
| Brand | Flex Tape |
| Brand Name | Flex Tape |
| Color | Black |
| 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 | 4.0 out of 5 stars 8,585 Reviews |
| Global Trade Identification Number | 00852808007053 |
| Included Components | Flex Tape Rubberized Waterproof Tape, 4 Inch x 5 Feet, Black |
| Item Dimensions L x W x Thickness | 4.13"L x 3.63"W x 3.63"Th |
| Item Resistance | waterproof |
| Item Thickness | 39 mils |
| Item Type Name | TFSBLKR0405 |
| Item Weight | 0.12 kg |
| Manufacturer | Swift Response, LLC |
| Material | Rubber |
| Material Type | Rubber |
| Model | TFSBLKR0405 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Other Special Features of the Product | Waterproof |
| Part Number | TFSBLKR0405 |
| Recommended Uses For Product | Outdoor |
| Size Name | 4" x 5' (Pack of 1) |
| Special Feature | Waterproof |
| 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 | 852808007053 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 212 °F |
| Warranty Description | Warranty |
| Water Resistance Level | Waterproof |

## Product Details

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

## Images

![Flex Tape Strong Rubberized Waterproof Tape, Black, 4 in x 5 ft, 1-Pack | Patch, bond, seal, repair, works underwater, strong adhesive, roof leaks, gutters, pipes, pools, boats, RV, UV resistant - Image 1](https://m.media-amazon.com/images/I/81kYTEf9vdL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can flex tape be remove, even after a long while**
A: Flex Tape bonds get stronger over time. However, many customers have had success removing Flex Tape with adhesive remover or a citrus degreaser.

**Q: Would the tape work to repair a tear in tbe seam of a  above ground pool liner?**
A: Many people have had great success repairing their pool liner with Flex Tape. For an even greater seal, be sure to apply it on the inside and outside of the pool.

**Q: What is the highest temperature it can handle?**
A: Flex Tape can be applied in temperatures From 20 degrees F up to 120 degrees F.  Flex Tape will function in extreme heat up to 200 degrees F.

**Q: can you prime and paint it?**
A: You can paint Flex Tape with our Flex Seal aerosol that comes in 12 colors.  We have done extensive testing and flex Seal aerosol is the only thing that adheres to The Flex Tape.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Strong
*by A***R on July 25, 2026*

Works great, I've bought it a few times now, very waterproof. Just be sure to use a blade you can throw away after because it will ruin your scissors cutting this. Works just as good as the old commercials promise.

### ⭐⭐⭐⭐⭐ Effective Crack Repair
*by V***C on August 24, 2026*

Simple instructions. Easy to apply. Great product.

### ⭐⭐⭐⭐ Difficult to manipulate into place.
*by J***E on August 2, 2026*

Hopefully it works well and stops the leak, and if so it's a 5 star. (Won't know until the next downpour.) But it was difficult to apply. Granted, my situation was challenging (PVC drainpipe which is buried and had to be dug around, and one side was not accessible). Be sure to read the instructions on how to cut it. If you use scissors, the scissors just get stuck to the tape, along with your fingers as you try to manipulate the tape.

## Frequently Bought Together

- Flex Tape, 4 in x 5 ft, Black, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs
- Flex Tape, 4 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

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-01*