---
product_id: 18415598
title: "EternaBond RoofSeal Gray 4\" x50' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RG040-50R - One-Step Durable, Waterproof and Airtight Sealant"
brand: "eternabond"
price: "KSh28970"
currency: KES
in_stock: true
reviews_count: 8
category: "Eterna Bond"
url: https://www.desertcart.co.ke/products/18415598-eternabond-roofseal-gray-4-x50-microsealant-uv-stable-rv-roof
store_origin: KE
region: Kenya
---

# UV-stable backing resists sun damage Flexible down to -57°C (-70°F) 35 mil thickness for rugged durability EternaBond RoofSeal Gray 4" x50' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RG040-50R - One-Step Durable, Waterproof and Airtight Sealant

**Brand:** eternabond
**Price:** KSh28970
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal it once, trust it forever—roof repair redefined.

## Quick Answers

- **What is this?** EternaBond RoofSeal Gray 4" x50' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RG040-50R - One-Step Durable, Waterproof and Airtight Sealant by eternabond
- **How much does it cost?** KSh28970 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/18415598-eternabond-roofseal-gray-4-x50-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

- • **Unmatched Weatherproofing:** Waterproof and airtight seal that stands strong against rain, snow, and extreme temps.
- • **Industry-Leading Durability:** 35 mil thick aluminum and MicroSealant layer deliver abrasion and corrosion resistance that lasts.
- • **One-Step, No-Mess Application:** Forget messy sealants—just peel, stick, and roll for a flawless, airtight bond.
- • **Versatile Surface Compatibility:** Bonds seamlessly to EPDM, TPO, metal, wood, fiberglass, and more—your all-in-one fix.
- • **UV-Resistant for Long-Term Protection:** Sunproof your repairs with a tape that won’t crack, peel, or fade under harsh UV exposure.

## Overview

EternaBond RoofSeal Gray is a 4" x 50' microsealant tape with a 35 mil thickness, engineered for professional-grade, one-step waterproof and airtight sealing. Its aluminum backing combined with advanced MicroSealant technology ensures superior adhesion and flexibility down to -57°C, while UV-stable materials protect against sun damage. Ideal for RV roofs, metal, wood, and fiberglass surfaces, this durable tape offers abrasion and corrosion resistance without the need for additional sealants, making it the go-to solution for long-lasting roof repairs.

## Description

Buy EternaBond RoofSeal Gray 4" x50' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RG040-50R - One-Step Durable, Waterproof and Airtight Sealant: Adhesive Tapes - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Worked Fantastically - The roof of my enclosed trailer started leaking. The 12 year old factory sealant used under the trim had finally given up. After removing all the trim I found how poorly the trailer was constructed. They used rivets every 8-9 inches or so which left a lot of the aluminum skin buckled up; and would have been difficult, if not impossible, to seal. I added a couple hundred additional rivets to make everything smooth, then cleaned all the areas that were going to receive the Eternabond tape. Application is straight forward and easy. Be warned, you need to plan ahead, have a helper if you need one, you only get one shot at placing the tape. After you get it down give it a good rolling. It also worked great on the top-to-side 90° transition; just place it on one surface, roll it to adhere it, then fold it over and roll some more. Pro's: Ease of use, durability, adhesion, quality. This will forever be my goto solution for trailer roof leak repairs. Con's: None really. There is a learning curve to using it but if you've got two brain cells to clank together to make a spark you'll be able to figure it out.
Review: Excellent product - Many have used this product to repair tears in their RV rubber roofs, Even on metal. As long as you follow instructions this product is outstanding as far as adhesion and protection for water intrusion. I bought several rolls in 2006 after purchasing a new travel trailer. I bought a quart of acetone to clean the surfaces that I applied the tape. I covered all the perimeter of the travel trailers roof. Generally the rubber is attached via the rain gutter. There are screws every few inches holding the rubber down and the gutter on. Im my mind, these are all potential leak points. As the saying goes, it's not if your RV leaks, but when. I experienced this with a prior RV even after diligent cleaning and caulking of seams. I did all edges and seams on the roof. All roof vents and even used a pieces underneath the crank up antenna. The product has held up outstanding for the 15 years it has been in place. No leaks. Here are some tips/ thoughts about the product and process; Do not over apply the acetone, just wipe the area and let dry. Once you pull the backing off the tape, be careful. The product sticks very very well. Use a J roller to roll the tape down after applying. Once down, you will not get it off easily. My method was to clean the inside of the guttter and the edge of the rubber roof, I applied the product inside the back edge of the gutter, to cover the screws, and then fold over onto the roof. roll it down. I did front and rear seams where metal siding meets rubber roof. I cannot see any of this work from the ground. I cannot think of anything one can do any better to protect roof seams, than using this product. I will do any trailer I may own in the future. It is not inexpensive, but it has done an outstanding job and no seams have loosened, torn, or failed. Very happy with this product.

## Features

- MULTI-USE: Perfect 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 | B00ER8VL72 |
| Best Sellers Rank | #1,564 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #86 in Adhesive Tapes |
| Brand | EternaBond |
| Brand Name | EternaBond |
| Color | Gray |
| Compatible Material | Alloy Steel, Aluminum, Metal, Wood |
| Customer Reviews | 4.8 out of 5 stars 13,761 Reviews |
| Global Trade Identification Number | 00891991000403 |
| Included Components | automotive accessories |
| Item Dimensions L x W x Thickness | 4"W x 0.04"Th |
| Item Thickness | 35 Mils |
| Item Type Name | RoofSeal Sealant Tape, Gray - 4" x 50' |
| Item Weight | 3 Pounds |
| Manufacturer | EternaBond |
| Material | Aluminum , Fiberglass |
| Material Type | Aluminum, Fiberglass |
| Number of Items | 1 |
| Other Special Features of the Product | Durable |
| Recommended Uses For Product | Repair |
| Size Name | 4" x 50' |
| Special Feature | Durable |
| Surface Recommendation | Wood,Metal |
| UPC | 891991000403 |
| Unit Count | 50 Feet |
| Upper Temperature Rating | 120 Degrees Fahrenheit |
| Warranty Description | Manufacturer warranty |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** EternaBond
- **Color:** Gray
- **Material:** Aluminum, Fiberglass
- **Number of Items:** 1
- **Recommended Uses For Product:** Repair

## Images

![EternaBond RoofSeal Gray 4" x50' MicroSealant UV Stable RV Roof Seal Repair Tape | 35 mil Total Thickness - EB-RG040-50R - One-Step Durable, Waterproof and Airtight Sealant - Image 1](https://m.media-amazon.com/images/I/811d-NiJZHL.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

### ⭐⭐⭐⭐⭐ Worked Fantastically
*by S***K on July 31, 2025*

The roof of my enclosed trailer started leaking. The 12 year old factory sealant used under the trim had finally given up. After removing all the trim I found how poorly the trailer was constructed. They used rivets every 8-9 inches or so which left a lot of the aluminum skin buckled up; and would have been difficult, if not impossible, to seal. I added a couple hundred additional rivets to make everything smooth, then cleaned all the areas that were going to receive the Eternabond tape. Application is straight forward and easy. Be warned, you need to plan ahead, have a helper if you need one, you only get one shot at placing the tape. After you get it down give it a good rolling. It also worked great on the top-to-side 90° transition; just place it on one surface, roll it to adhere it, then fold it over and roll some more. Pro's: Ease of use, durability, adhesion, quality. This will forever be my goto solution for trailer roof leak repairs. Con's: None really. There is a learning curve to using it but if you've got two brain cells to clank together to make a spark you'll be able to figure it out.

### ⭐⭐⭐⭐⭐ Excellent product
*by L***N on June 7, 2021*

Many have used this product to repair tears in their RV rubber roofs, Even on metal. As long as you follow instructions this product is outstanding as far as adhesion and protection for water intrusion. I bought several rolls in 2006 after purchasing a new travel trailer. I bought a quart of acetone to clean the surfaces that I applied the tape. I covered all the perimeter of the travel trailers roof. Generally the rubber is attached via the rain gutter. There are screws every few inches holding the rubber down and the gutter on. Im my mind, these are all potential leak points. As the saying goes, it's not if your RV leaks, but when. I experienced this with a prior RV even after diligent cleaning and caulking of seams. I did all edges and seams on the roof. All roof vents and even used a pieces underneath the crank up antenna. The product has held up outstanding for the 15 years it has been in place. No leaks. Here are some tips/ thoughts about the product and process; Do not over apply the acetone, just wipe the area and let dry. Once you pull the backing off the tape, be careful. The product sticks very very well. Use a J roller to roll the tape down after applying. Once down, you will not get it off easily. My method was to clean the inside of the guttter and the edge of the rubber roof, I applied the product inside the back edge of the gutter, to cover the screws, and then fold over onto the roof. roll it down. I did front and rear seams where metal siding meets rubber roof. I cannot see any of this work from the ground. I cannot think of anything one can do any better to protect roof seams, than using this product. I will do any trailer I may own in the future. It is not inexpensive, but it has done an outstanding job and no seams have loosened, torn, or failed. Very happy with this product.

### ⭐⭐⭐⭐⭐ Wow impressive product!
*by S***K on May 14, 2014*

I bought a used enclosed snowmobile trailer this winter. The roof was covered with snow but looked good from the inside. The first hint of a problem was the first time I washed the trailer. I noticed soap suds and water streaks running down the inside walls. I grabbed my ladder and the problem was evident immediately. The original silicone seam from the manufacturer had developed stress cracks over the course of 10 years. It was a nice wide silicone seal about an 1 1/2 wide and surprisingly thick. The previous owner had tried to reseal some of these areas with clear silicone and in other areas with what appeared to be some sort of epoxy resin. It may have worked for awhile but the end result was a failure. I would have loved to reapply a silicone bead to the seam but there was no way I could match how it came from the factory. I honestly have no idea how they got the bead of silicone to be so uniform and wide. My initial research led me to a product called dicor lap seal. I cleared one side of trailer of silicone with a razor blade initially and a wire brush attached to my drill to clean the rest. I purchased the dicor lap seal specifically because it was self leveling. I was hoping I could apply a wide bead and it would self level enough to approach the width of the original silicone seal. It was apparent after about an hour after the application that it was no where near the width or thickness of the original seal. The lap seal worked well and it was free from leaks on that side of the trailer but I could tell it wasn't going to last that way for long. I needed something wide to bridge the gap between the upright walls of trailer and the roofline. I did some more research and that's when I found this product. I had enough faith in the product after reading some other reviews here and other sites that I removed all the new dicor lap seal with the same process as the silicone removal. I also removed all the other silicone from the trailer roof. I was a little nervous working with a new product that I had such high expectations from. I started with the back of trailer first because it was the shortest side. I started to enroll the tape in about two foot sections and would remove the plastic backer along with it. I applied the tape evenly, first to the top of the upright wall, and the remaining onto the trailer roof. I would press lightly at first to make sure the tape was where I wanted it. I could remove the tape and reapply with great effort if I had to at this time, which I did do several times throughout the entire project. Once I was satisfied with the placement I rolled the tape with the Eternabond 2 pound roller that I had purchased too. This process was quite simple and the bond afterward was impressive to say the least. I tried to pull a section of the tape off after rolling it just to see how well it adhered. The closest example I can think of that you maybe able to relate to is trying to remove a piece of embedded gum from carpet. This stuff sticks end of story! When I got to the end of the roof I took a scissors and cut the tape off evenly. I overlapped the tape on the ends rather than butt them for what I considered a better waterproof seal. It has rained quite a few times with a few thunderstorms in the mix and thus far no leaks whatsoever. The next test will be to see how it fairs over the winter months. I will try to do an update next spring to see if any leaks occur. There is one thing I would have done differently. I should have purchased the 4" wide tape. It wasn't that much more money and it would have given me an extra two inches of waterproof sealing power. I was concerned the 4" tape would be too hard to work with but I would have been fine. I will be keeping this product on hand. I liked working with it that much and I can use it on a variety of things.

## Frequently Bought Together

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-17*