--- product_id: 274048628 title: "Sika Closed Cell Backer Rod (3/4-inch)" brand: "sika" price: "Β£35.27" currency: GBP in_stock: true reviews_count: 5 category: "Sika" url: https://www.desertcart.co.uk/products/274048628-sika-closed-cell-backer-rod-3-4-inch store_origin: GB region: United Kingdom --- # Water-resistant closed cell foam 3/4-inch diameter precision fit 20 ft length for versatile coverage Sika Closed Cell Backer Rod (3/4-inch) **Brand:** sika **Price:** Β£35.27 **Availability:** βœ… In Stock ## Summary > 🧱 Seal smarter, not harder β€” the pro’s secret to flawless joints! ## Quick Answers - **What is this?** Sika Closed Cell Backer Rod (3/4-inch) by sika - **How much does it cost?** Β£35.27 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/274048628-sika-closed-cell-backer-rod-3-4-inch) ## Best For - sika enthusiasts ## Why This Product - Trusted sika brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Maximize Efficiency:** Controls sealant depth to save material and time - β€’ **Perfect Joint Control:** Prevents 3-point sealant adhesion for flawless flexibility - β€’ **Effortless Installation:** Simply insert, seal, and smooth for professional results - β€’ **Universal Compatibility:** Blends seamlessly with most surfaces and sealants - β€’ **Durable & Water-Resistant:** Closed cell foam resists moisture for lasting performance ## Overview Sika Closed Cell Backer Rod is a 3/4-inch diameter, 20-foot long polyurethane foam joint filler designed to enhance sealant performance by controlling depth and preventing adhesion on three sides. Its water-resistant closed cell structure ensures durability for both interior and exterior applications, making it ideal for expansion joints, glazing, and window or door perimeters. Easy to install and compatible with most sealants, it delivers professional-grade results while optimizing material use. ## Description Sika's Closed Cell Backer Rod is an essential tool for any joint filler project, ensuring efficient and long-lasting results. Its water-resistant and highly compressible properties make it suitable for interior and exterior uses. The gray color blends well and makes it compatible with most surfaces and sealants. Measuring 3/4" in diameter and 20 feet long, it makes an ideal fit for expansion joints, glazing installations, and window and door perimeters. For a simple installation, just insert the backer rod, apply sealant and smooth for a uniform finish. Achieve professional results and save time and money on your DIY project with Sika's Polyethylene Foam Backer Rod. Available in 3/4"/20 ft. bag. ## Features - JOINT FILLER WITH A PURPOSE β€” This sika foam backer rod partially fills joints and cracks due to concrete expansion, and to enable flexibility in the space before applying sealant - INCREASE EFFICIENCY β€” Use the Sika Backer Rod to prevent 3-point sealant adhesion and control its depth for easier adjustment and more efficient use of sealant - EASY-TO-USE β€” Clean the area and insert the backer rod firmly and uniformly into the joint or gap. Apply suitable sealant fully over the backer rod and smooth it with a tool for a uniform finish ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B013XSV3A6 | | Best Sellers Rank | #175,609 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #715 in Hardware Sealers | | Brand | SIKA | | Brand Name | SIKA | | Colour | Grey | | Compatible Material | Foam | | Country of Publication | USA | | Customer Reviews | 4.6 out of 5 stars 996 Reviews | | Global Trade Identification Number | 00033886001595 | | Included Components | Backer Rod | | Item Dimensions | 6.1 x 0.02 x 0.02 Meters | | Item Form | Foam | | Item Type Name | Backer Rod | | Item dimensions L x W x H | 6.1 x 0.02 x 0.02 Meters | | Manufacturer | Sika | | Manufacturer Part Number | 108130 | | Material | Polyurethane | | Material Type | Polyurethane | | Model | 108130 | | Number of Items | 1 | | Style | Joint Filler | | Style Name | Joint Filler | | Surface Recommendation | Window,Door | | UPC | 033886001595 | | Unit Count | 1.0 Count | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** SIKA - **Item dimensions L x W x H:** 6.1 x 0.02 x 0.02 Meters - **Material:** Polyurethane - **Style:** Joint Filler - **Water Resistance Level:** Water Resistant ## Images ![Sika Closed Cell Backer Rod (3/4-inch) - Image 1](https://m.media-amazon.com/images/I/71TY0Jo9gQL.jpg) ![Sika Closed Cell Backer Rod (3/4-inch) - Image 2](https://m.media-amazon.com/images/I/81qXgZ-ZpLL.jpg) ![Sika Closed Cell Backer Rod (3/4-inch) - Image 3](https://m.media-amazon.com/images/I/912GV8h6SmL.jpg) ![Sika Closed Cell Backer Rod (3/4-inch) - Image 4](https://m.media-amazon.com/images/I/71L5ZxWESUL.jpg) ![Sika Closed Cell Backer Rod (3/4-inch) - Image 5](https://m.media-amazon.com/images/I/61yPrx5fubL.jpg) ## Questions & Answers **Q: If the concrete slabs are 1 inch apart, will this work? I could not find any 1" being sold... Should the rope seal be the same width or smaller width?** A: You want to fit the gap. If the backer rod was too small I put in two rods of different sizes to fill the gap. Took some work to make it fit ok and look ok but once I put in the self leveling chalking it looked good. If there is a gap around the rods the chalk will seep down between. Not good. Could use a different chalk type but I liked the look of the self leveling after it dried. **Q: Where is this product manufactured?** A: Made in USA. **Q: Will this work between the tub and tile in the bathroom?** A: Hello. Sika Backer Rod can be used in this application if the sealant installation to follow calls for a closed-cell backer rod. Thank you for considering Sika! **Q: Can this be used to seal between facia boards and brick wall to keep bats out?** A: We used this to fill big cracks in our driveway and then used concrete sealer over that. I suppose you can use it for your purpose. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***R on 3 December 2025* ### ⭐⭐⭐⭐⭐ Review *by L***D on 29 November 2024* ### ⭐⭐⭐⭐⭐ Review *by T***S on 19 January 2024* ## Frequently Bought Together - Sika - Polyethylene Foam - Closed Cell Backer Rod (Gray) - to Fill Joints and Cracks Before applying sealant - Water-Resistant, Flexible - 3/4" Diameter x 20' ft. Long - Sikaflex Self Leveling Sealant, Gray, polyurethane with an accelerated curing capacity for sealing horizontal expansion joints in concrete, 10.1 fl. oz Cartridge - Sikaflex Concrete Fix, Limestone, Elastic sealant sealing cracks and joints, paintable polyurethane , 10.1 fl. Oz --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/274048628-sika-closed-cell-backer-rod-3-4-inch](https://www.desertcart.co.uk/products/274048628-sika-closed-cell-backer-rod-3-4-inch) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-02*