---
product_id: 317956920
title: "Flex Tape Strong Rubberized Waterproof Tape, Black, 8 in x 25 ft, 1-Pack | Patch, bond, seal, repair, works underwater, strong adhesive, roof leaks, gutters, pipes, pools, boats, RV, UV resistant"
brand: "flex tape"
price: "₩218728"
currency: KRW
in_stock: true
reviews_count: 10
category: "Flex Tape"
url: https://www.desertcart.kr/products/317956920-flex-tape-strong-rubberized-waterproof-tape-black-8-in-x
store_origin: KR
region: South Korea
---

# Works underwater & wet surfaces 400% more tape per roll UV resistant & extreme temp proof Flex Tape Strong Rubberized Waterproof Tape, Black, 8 in x 25 ft, 1-Pack | Patch, bond, seal, repair, works underwater, strong adhesive, roof leaks, gutters, pipes, pools, boats, RV, UV resistant

**Brand:** flex tape
**Price:** ₩218728
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it, fix it, flex it — the ultimate tape for pros who never settle.

## Quick Answers

- **What is this?** Flex Tape Strong Rubberized Waterproof Tape, Black, 8 in x 25 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?** ₩218728 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/317956920-flex-tape-strong-rubberized-waterproof-tape-black-8-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

- • **Unmatched Coverage:** Get 400% more tape per roll for mega repairs without running out.
- • **Waterproof Powerhouse:** Seals leaks instantly—even underwater or on wet surfaces, no drying needed.
- • **Fast, Reliable Repairs:** Strong rubberized adhesive stops leaks on roofs, pipes, pools, boats, and more.
- • **Universal Surface Grip:** Adheres to over 20 materials from metal to fabric—your all-in-one fix-it tape.
- • **Built to Brave Elements:** UV resistant and withstands extreme temperatures for long-lasting durability.

## Overview

Flex Tape Strong Rubberized Waterproof Tape is an industrial-grade, black 8 in x 25 ft roll designed for heavy-duty patching and sealing. Featuring 400% more tape per roll, it bonds instantly on wet or dry surfaces—even underwater. UV resistant and temperature tough, it adheres to a wide range of materials including metal, wood, and fabric, making it the go-to solution for plumbing, roofing, automotive, and outdoor repairs.

## Description

desertcart.com: Flex Tape Strong Rubberized Waterproof Tape, Black, 8 in x 25 ft, 1-Pack | Patch, bond, seal, repair, works underwater, strong adhesive, roof leaks, gutters, pipes, pools, boats, RV, UV resistant : Industrial & Scientific

Review: Many uses - Can’t have enough of this product, excellent
Review: Crazy strong - I put a couple of layers of this tape down on a hot tub cover that was split three years ago. I bought another roll this year to reinforce as the cover is continuing to go down hill. This is great tape if you can keep from getting wrapped up in it.

## Features

- Stop Giant Leaks, with Flex Tape MAX
- 400% More Flex Tape per Roll
- The Original Super Strong Waterproof Tape
- Works On Wet or Dry Surfaces, and Even Underwater
- UV resistant, VOC- free, and Withstands Extreme Temperatures

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0916SF5TY |
| Adhesive Format | Tape |
| Adhesive Location | back |
| Adhesive Material | Rubber |
| Adhesive Side Count | 1 |
| Best Sellers Rank | #55,286 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #419 in Duct Tape |
| 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 | 4.3 out of 5 stars 71 Reviews |
| Included Components | Flex Tape, MAX, Black, 8 in x 25 ft, Pack of 1 |
| Item Highlight | Patch, bond, seal, repair, works underwater, strong adhesive, roof leaks, gutters, pipes, pools, boats, RV, UV resistant |
| Item Resistance | heat, uv, water |
| Item Thickness | 39 mils |
| Item Type Name | Flex Tape Black - 8 in x 25 ft |
| Item Weight | 2.7 pounds |
| Manufacturer | Flex Tape |
| Material | Rubber |
| Material Type | Rubber |
| Model | TFSMAXBLK08 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Other Special Features of the Product | Uv-Resistant |
| Package Size Name | MAX |
| Part Number | TFSMAXBLK08 |
| Recommended Uses For Product | Plumbing repairs, Sealing out air and water, General home repairs, Fast fixes on your boat, Auto or RV, Roof repairs, Pool repairs, Bath and shower, DIY projects, and so much more! Recommended Uses For Product Plumbing repairs, Sealing out air and water, General home repairs, Fast fixes on your boat, Auto or RV, Roof repairs, Pool repairs, Bath and shower, DIY projects, and so much more! See more |
| Size Name | 8' x 25' (Pack of 1) |
| Special Feature | Uv-Resistant |
| 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 | 850017897311 |
| Unit Count | 25 Feet |
| Warranty Description | 1 Year Limited |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Flex Tape
- **Color:** Black
- **Material:** Rubber
- **Number of Items:** 1

## Images

![Flex Tape Strong Rubberized Waterproof Tape, Black, 8 in x 25 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/71F8s99l3FL.jpg)

## Questions & Answers

**Q: How well does this adhere to a leak on a liner bottom with a pool full of water**
A: I used to to wrap around styrofoam dock floats in the lake.  The ones I did early in the morning didn’t adhere as well as the ones I did late in the sunny afternoon.  They have been in plCE FOR ABOUT 6 months now and doing well.

**Q: is it usable for roof ridge already covered with flex seal?**
A: Maybe use a larger piece. I haven’t had it fail on anything I have tried it on yet!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Many uses
*by S***P on July 20, 2025*

Can’t have enough of this product, excellent

### ⭐⭐⭐⭐⭐ Crazy strong
*by A***R on January 5, 2024*

I put a couple of layers of this tape down on a hot tub cover that was split three years ago. I bought another roll this year to reinforce as the cover is continuing to go down hill. This is great tape if you can keep from getting wrapped up in it.

### ⭐⭐⭐⭐⭐ Adhere’s to anything
*by K***T on November 16, 2024*

This may be expensive, but it’s worth every penny. Patched a section of garage roof. I actually think it will outlast the shingles.

## Frequently Bought Together

- Flex Tape, MAX, 8 in x 25 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, MAX, 4 in x 25 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, 12 in x 10 ft, 2-Pack, Black, 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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**Shop now:** [https://www.desertcart.kr/products/317956920-flex-tape-strong-rubberized-waterproof-tape-black-8-in-x](https://www.desertcart.kr/products/317956920-flex-tape-strong-rubberized-waterproof-tape-black-8-in-x)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-09-08*