---
product_id: 324924562
title: "EternaBond RoofSeal White 4\" x25' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RW040-25R - One-Step Durable, Waterproof and Airtight Sealant"
brand: "eternabond"
price: "€ 93.70"
currency: EUR
in_stock: true
reviews_count: 5
category: "Eterna Bond"
url: https://www.desertcart.com.cy/products/324924562-eternabond-roofseal-white-4-x25-microsealant-uv-stable-rv-roof
store_origin: CY
region: Cyprus
---

# UV-stable backing resists sun damage Flexible down to -57°C (-70°F) prevents thermal shock 35 mil total thickness for ultimate durability EternaBond RoofSeal White 4" x25' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RW040-25R - One-Step Durable, Waterproof and Airtight Sealant

**Brand:** eternabond
**Price:** € 93.70
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal it once, forget it forever!

## Quick Answers

- **What is this?** EternaBond RoofSeal White 4" x25' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RW040-25R - One-Step Durable, Waterproof and Airtight Sealant by eternabond
- **How much does it cost?** € 93.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/324924562-eternabond-roofseal-white-4-x25-microsealant-uv-stable-rv-roof)

## Best For

- eternabond enthusiasts

## Why This Product

- Trusted eternabond brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Flexible Seal:** 35 mil thickness ensures abrasion resistance while flexing in freezing temps.
- • **Trusted by Pros & DIYers:** Join thousands who rely on EternaBond for permanent, leak-proof repairs.
- • **All-Surface Bonding Power:** Bonds seamlessly to EPDM, TPO, metal, wood, fiberglass, and more.
- • **Weatherproof & UV-Resistant:** Built to withstand harsh sun exposure and extreme temperature swings.
- • **One-Step, No-Mess Application:** Forget messy sealants—just peel, stick, and seal in seconds.

## Overview

EternaBond RoofSeal is a professional-grade, 35 mil thick microsealant tape designed for permanent, waterproof, and airtight repairs on virtually any roof surface. Its UV-stable backing and extreme temperature flexibility (-57°C/-70°F) ensure long-lasting protection without additional sealants, making it the go-to solution for RVs, trailers, metal buildings, and more.

## Description

EternaBond RoofSeal is a one-step semi-permanent repair system for virtually all roof types and roof accessories, from commercial building roofs to RVs and cargo trailers. EternaBond RoofSeal features a UV stable backing and creates a waterproof, moisture and air tight barrier with no additional sealing required. EternaBond RoofSeal remains flexible to temperatures as low as -57 degrees Celsius (-70 degrees Fahrenheit) making it virtually impossible to thermally shock the seam causing a leak. The adhesive side has a silicone lining that prevents it from sticking to other surfaces before application. Use RoofSeal over factory RV roof seams one time and never do roof seam maintenance again. From the manufacturer to the tradesman to the homeowner, more and more people are trusting EternaBond for permanent repairs on non pressurized leaks. EternaBond's MicroSealant adhesive provides a permanent bond to virtually all surfaces. By following our easy 3 step instructions, you too will be amazed at the simplicity of installation and bonding strength of EternaBond tapes. For 130 years, H.B. Fuller has been a leading global adhesives provider focusing on perfecting adhesives, sealants and other specialty chemical products to improve products and lives. H.B. Fuller's commitment to innovation brings together people, products and processes that answer and solve some of the world's biggest challenges. Our reliable, responsive service creates lasting, rewarding connections with customers in electronics, disposable hygiene, medical, transportation, clean energy, packaging, construction, woodworking, general industries and other consumer businesses. And our promise to our people connects them with opportunities to innovate and thrive.

Review: I fixed a tarp top on my patio and it's the only one that make the job.
Review: This is the bomb of tapes. Forget silicone less mess last longer and works better.

## Features

- MULTI-USE: Perferct for use on metal buildings, trailer/RV roofs and sides, drain pans, drain pipes, boats, canoes. bonds to a wide range of surfaces including roof materials such as EPDM, TPO, Hypalon, aluminum, galvanized steel, wood, and fiberglass.
- NO ADDITIONAL SEALING REQUIRED: Aluminum backing, combined with a layer of advanced MicroSealant, creates a waterproof, moisture, and air tight barrier with no additional sealing required that remains flexible to -57°C (-70°F)
- DURABLE SURFACE: Industry leading one step repair system that creates a protective coating for surfaces that require abrasion and corrosion resistance
- EXCELLENT UV RESISTANCE: Tape features a durable and UV-stable backing that withstands deterioration in fluctuating temperatures and direct sun exposure
- EASY TO USE: Simple and quick one-step repair, using sticky tape with no trays or messy solvents to clean up after the project completion, and no other adhesive needed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008HMYZKO |
| Brand | EternaBond |
| Color | White |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,749) |
| Date First Available | 24 June 2014 |
| Item Weight | 898 g |
| Manufacturer | EternaBond |
| Manufacturer Part Number | RSW425 |
| Material Type | butyl |
| Model number | RSW425 |
| Number of Items | 1 |
| Product Dimensions | 12.19 x 12.19 x 10.16 cm; 898 g |
| Size | 4" x 25' |

## Product Details

- **Brand:** EternaBond
- **Colour:** White
- **Material:** butyl
- **Number of Items:** 1
- **Recommended uses for product:** Packaging

## Images

![EternaBond RoofSeal White 4" x25' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RW040-25R - One-Step Durable, Waterproof and Airtight Sealant - Image 1](https://m.media-amazon.com/images/I/516jSoFR9wL.jpg)
![EternaBond RoofSeal White 4" x25' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RW040-25R - One-Step Durable, Waterproof and Airtight Sealant - Image 2](https://m.media-amazon.com/images/I/51CjVyMihKL.jpg)
![EternaBond RoofSeal White 4" x25' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RW040-25R - One-Step Durable, Waterproof and Airtight Sealant - Image 3](https://m.media-amazon.com/images/I/6176PNJAmQL.jpg)
![EternaBond RoofSeal White 4" x25' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RW040-25R - One-Step Durable, Waterproof and Airtight Sealant - Image 4](https://m.media-amazon.com/images/I/61YuWG56YqL.jpg)
![EternaBond RoofSeal White 4" x25' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RW040-25R - One-Step Durable, Waterproof and Airtight Sealant - Image 5](https://m.media-amazon.com/images/I/61guDyvmZ5L.jpg)

## Available Options

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

## Questions & Answers

**Q: Can this product be coated/covered with the Liquid Roof EPDM product?**
A: My seams on my Motorhome were sealed with this product 10 yrs ago.  My roof was recoated with EPDM rubber roof in a bucket three years ago.  No problem thus far.

**Q: Has anyone used this on galvanized metal roofing?  Lots of seams!!   Some have been caulked with silicone..**
A: I used this sealant on a galvanized camper roof at the numerous seams that were previously coated with silicone. I made sure that I centered the silicone with the sealant. I was worried but took the chance that there would not be a reaction between the two products. it has been two years now and the roof is still fine

**Q: What size is the roll of tape**
A: The tape is 4 inches wide by 50 feet long. There are three sizes to choose from, 2" x 50' long, 4" x 50' long or 6 inches wide by 50 feet long. It's designated on the packaging as 2-50, 4-50 and 6-50. Works great. You can put it on and done!  When you use lap sealants by Dicor or other makers they take up to a month to fully cure.

**Q: Would this be good for a large mobile home roof ?**
A: I think it would be good to use on any camper or mobile home roof to help stop a leak, especially at a seam, but it would also be a good idea to seal around the edges of the EternaBond with a bead of DiCor sealant.  That's what I did on my aluminum camper roof and it worked like a charm.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 12 November 2018*

I fixed a tarp top on my patio and it's the only one that make the job.

### ⭐⭐⭐⭐⭐ Review
*by D***N on 7 May 2025*

This is the bomb of tapes. Forget silicone less mess last longer and works better.

### ⭐⭐⭐⭐⭐ Review
*by M***. on 21 September 2021*

Habe es gekauft um bei meinem Wohnmobil das Dach abzudichten. Lässt sich super verarbeiten

## Frequently Bought Together

- EternaBond RoofSeal White 4" x25' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RW040-25R - One-Step Durable, Waterproof and Airtight Sealant
- Dicor 501LSW-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application
- EternaBond EternaPrime Adhesive and Surface Conditioner Spray - 12.2 oz Can | EB-EPSPC | Aids in Adhesion on Dirty or Dusty Surfaces - for MicroSealant and Other Self Adhesive Seaming Tape

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.cy/products/324924562-eternabond-roofseal-white-4-x25-microsealant-uv-stable-rv-roof](https://www.desertcart.com.cy/products/324924562-eternabond-roofseal-white-4-x25-microsealant-uv-stable-rv-roof)

---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-24*