--- product_id: 67605954 title: "EternaBond RSW450" brand: "eternabond" price: "£115.10" currency: GBP in_stock: true reviews_count: 5 category: "Eterna Bond" url: https://www.desertcart.co.uk/products/67605954-eternabond-rsw450 store_origin: GB region: United Kingdom --- # High elongation for extreme weather flexibility 4-inch width for broad coverage Silicone-based adhesive with non-stick liner EternaBond RSW450 **Brand:** eternabond **Price:** £115.10 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal smart, stay leak-free — the pro’s choice for roof resilience! ## Quick Answers - **What is this?** EternaBond RSW450 by eternabond - **How much does it cost?** £115.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/67605954-eternabond-rsw450) ## 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 - • **Precision Fit:** 4-inch width covers large gaps quickly and cleanly - • **No-Mess Application:** Silicone liner prevents premature sticking for flawless installation - • **Sun-Ready Durability:** Designed to withstand intense sunlight without cracking or peeling - • **Effortless Weatherproofing:** Self-adhering tape that seals and stretches with your roof - • **Versatile Surface Compatibility:** Bonds securely to metal, glass, plastic, and wood ## Overview EternaBond RSW450 is a 4-inch by 50-foot white silicone roof sealant tape engineered for outdoor durability and easy application. Its high elongation factor allows it to flex with temperature changes, while the silicone liner ensures a clean, no-mess installation. Ideal for sealing metal, glass, plastic, and wood surfaces, it’s trusted by thousands for reliable, long-lasting protection against leaks. ## Description Ideal for use in sunny environments; Simple installation only requires some surface preparation before use.The elongation factor is very high, which permits roof seal to expand or contract with changing conditions; Adhesive side has a silicone lining that prevents it from sticking to other surfaces before application Review: Toujours pas d infiltration sur le toit du cc depuis 4 mois. Facile à utiliser mais attention pas le droit au deuxième essai Review: I have used Eternabond Camper Roof Sealant Tape for years to seal my top edges of my slide outs . I recently decided I was going to go over all my dicor on my main roof with Eternabond . I order the 4 inches by 50 feet as part of my pre determined installed plan . I am very impressed with Eternabond as it provides a great seal that will last for years. It is a lot cleaner to apply then lap sealant and can be used as a stand alone seal . The only thing I will say is plan where you are going to stick it in advance as it is very difficult to remove once in place . The key to the tape is applying pressure after it is down where you want it . The roller works great for this . Pre cleaning is also important, I used rubbing alcohol after making sure the area is cleaned with soup and water, then let dry (do not apply if wet, or cold outside). The tape will basically stick and seal to anything other than 100 % silicone! It can be applied right over existing lap sealant as long as you clean it prior. Great to have a roll in your camper incase of an emergency roof repair. Honestly the best place to use this is on your slide roof. Most factory roof installs will have a small two inch layer of Eternabond or other brand of tape. First thing I do is add either a 4” or a 6” wide strip on top of that for added protection . That or both and layer it. Lap sealant cannot be used well on a slide as it will stick to all the seals , so this is definitely the best option . Some tips for install : - cleaning and pressure are keys to a good seal. - mark out where you want to put the tape down prior with a marker so you have some lines to follow . - a window screen seal roller is a helpful tool for applying pressure in tight area . Removal tips : - used a blow dryer or heat gun to gently tear off the top layer of the tape. The top layer will pull off easy, the bottom sealing layer will need to be cleaned up with solvent . If you are reapplying new tape, there is no need to remove the bottom layer. I would recommend any size of Eternabond for repair or an upgraded roof sealant option for a travel trailer . Second time ordering the 4” , second camper I have used it on. ## Features - EternaBond RSW-4-50 RoofSeal Sealant Tape, White - 4 x 50' - 4" x 50' - White ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002RSIK4G | | Best Sellers Rank | 431,458 in Automotive ( See Top 100 in Automotive ) 1,242 in Automotive Window & Door Seals | | Brand | EternaBond | | Colour | White | | Compatible Material | Metal | | Customer Reviews | 4.8 4.8 out of 5 stars (8,715) | | Global Trade Identification Number | 00700115575805, 00891991000533 | | Item Dimensions L x W x Thickness | 15.24L x 0.1W metres | | Item Resistance | Temperature, Weather | | Item Thickness | 0.04 Inches | | Item Weight | 3.5 Pounds | | Manufacturer | EternaBond | | Manufacturer Part Number | RSW-4-50R | | Material | Silicone | | Model Number | RSW-4-50 | | Number of Items | 1 | | Other Special Features of the Product | Self-Adhering | | Recommended Uses For Product | Outdoor, General-purpose sealing, Painting/Masking | | Size Name | 4" x 50' | | Surface Recommendation | Glass, Metal, Plastic, Wood | | UPC | 700115575805 891991000533 | | Unit Count | 1.0 count | | Water Resistance Level | Not Water Resistant | ## Product Details - **Brand:** EternaBond - **Colour:** White - **Material:** Silicone - **Number of items:** 1 - **Recommended uses for product:** Outdoor, General-purpose sealing, Painting/Masking ## Images ![EternaBond RSW450 - Image 1](https://m.media-amazon.com/images/I/81x5QLJK+GL.jpg) ![EternaBond RSW450 - Image 2](https://m.media-amazon.com/images/I/81efxXQE1fL.jpg) ![EternaBond RSW450 - Image 3](https://m.media-amazon.com/images/I/514Ou4DCxPL.jpg) ![EternaBond RSW450 - Image 4](https://m.media-amazon.com/images/I/512aU1Z0iJL.jpg) ![EternaBond RSW450 - Image 5](https://m.media-amazon.com/images/I/41RdounHZhL.jpg) ## Questions & Answers **Q: Could you tell me if its thickness of this 100mm (4") repair tape. Is it 0.10ins (2mm ) or less than this?** A: it has 3,5mm thickness ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***E on 24 July 2025* Toujours pas d infiltration sur le toit du cc depuis 4 mois. Facile à utiliser mais attention pas le droit au deuxième essai ### ⭐⭐⭐⭐⭐ Review *by R***A on 27 May 2025* I have used Eternabond Camper Roof Sealant Tape for years to seal my top edges of my slide outs . I recently decided I was going to go over all my dicor on my main roof with Eternabond . I order the 4 inches by 50 feet as part of my pre determined installed plan . I am very impressed with Eternabond as it provides a great seal that will last for years. It is a lot cleaner to apply then lap sealant and can be used as a stand alone seal . The only thing I will say is plan where you are going to stick it in advance as it is very difficult to remove once in place . The key to the tape is applying pressure after it is down where you want it . The roller works great for this . Pre cleaning is also important, I used rubbing alcohol after making sure the area is cleaned with soup and water, then let dry (do not apply if wet, or cold outside). The tape will basically stick and seal to anything other than 100 % silicone! It can be applied right over existing lap sealant as long as you clean it prior. Great to have a roll in your camper incase of an emergency roof repair. Honestly the best place to use this is on your slide roof. Most factory roof installs will have a small two inch layer of Eternabond or other brand of tape. First thing I do is add either a 4” or a 6” wide strip on top of that for added protection . That or both and layer it. Lap sealant cannot be used well on a slide as it will stick to all the seals , so this is definitely the best option . Some tips for install : - cleaning and pressure are keys to a good seal. - mark out where you want to put the tape down prior with a marker so you have some lines to follow . - a window screen seal roller is a helpful tool for applying pressure in tight area . Removal tips : - used a blow dryer or heat gun to gently tear off the top layer of the tape. The top layer will pull off easy, the bottom sealing layer will need to be cleaned up with solvent . If you are reapplying new tape, there is no need to remove the bottom layer. I would recommend any size of Eternabond for repair or an upgraded roof sealant option for a travel trailer . Second time ordering the 4” , second camper I have used it on. ### ⭐⭐⭐⭐⭐ Review *by F***R on 6 November 2024* used to seal roof of caravan. Works great, if unsure there are plenty of videos on youtube to help. ## Frequently Bought Together - ETERNABOND RSW450 - Thetford RV Toilet Seal Lube and Conditioner - Toilet Seal Lubricant - 24 oz 36663 - Valterra T58 Twist-On Waste Valve, Mess-Free Waste Valve for RV's, Campers, Trailers --- ## 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.co.uk/products/67605954-eternabond-rsw450](https://www.desertcart.co.uk/products/67605954-eternabond-rsw450) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-17*