--- product_id: 77420348 title: "M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480" brand: "m-d building products" price: "264.71 DT" currency: TND in_stock: true reviews_count: 5 category: "M D Building Products" url: https://www.desertcart.tn/products/77420348-m-d-products-50in-x-20ft-backer-rod-for-gaps store_origin: TN region: Tunisia --- # Closed-cell, water resistant 20ft length coverage 0.5in max gap fill M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 **Brand:** m-d building products **Price:** 264.71 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Seal Smart, Save Time, Stay Ahead! ## Quick Answers - **What is this?** M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 by m-d building products - **How much does it cost?** 264.71 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/77420348-m-d-products-50in-x-20ft-backer-rod-for-gaps) ## Best For - m-d building products enthusiasts ## Why This Product - Trusted m-d building products brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Application:** Ideal for sidewalks, foundations, driveways, and wall joints—professional results at home. - • **Easy to Handle & Install:** Flexible foam compresses smoothly, creating a solid base for flawless caulking finishes. - • **Durable & Water Resistant:** Closed-cell polyethylene resists moisture, preventing damage and ensuring longevity. - • **Extended Project Coverage:** Generous 20-foot length ensures you’re ready for multiple repairs without running short. - • **Perfect Fit for Every Crack:** Precisely 0.5-inch thickness fills common pavement and wall gaps with ease. ## Overview M-D Products 0.5in x 20ft Backer Rod is a flexible, closed-cell polyethylene foam designed to fill and insulate gaps in pavement cracks, wall joints, and foundations. Its water-resistant, gray finish material compresses easily to create a solid base for caulking, reducing sealant waste and enhancing durability. Perfect for professional-grade weatherization and home repair projects, it offers reliable coverage and ease of use for millennial managers who value efficiency and quality. ## Description Before caulking use the Caulk Backer Rod to help fill gaps and openings in pavement cracks wall joints foundations sidewalks and driveways. The backer rod helps cushion and insulate and helps prevent 3-point bonding.Features. Fills gaps and openings in pavement cracks wall joints foundations sidewalks and driveways.. Non-absorbent closed-cell polyethylene pre-caulking material.. Twist multiple strands together to fill large cracks gaps.. Gray finish.. Size - 0.5 in. x 20 ft. Review: Easy to Work With and Effective for Filling Gaps - This backer rod works well for sealing larger gaps and preparing joints before applying caulk or sealant. The foam material is flexible and easy to press into cracks, expansion joints, and uneven spaces without tearing apart during installation. It compresses nicely to create a solid base for caulking, which helps reduce wasted sealant and gives a cleaner finished result. The 1/2 inch thickness is useful for common concrete gaps and smaller repair jobs around the house or garage. The material feels lightweight but durable enough to hold its shape once installed, and the 20 foot length provides enough coverage for multiple projects. It is simple to cut to size and easy to handle even for someone without much repair experience. Considering the ease of use, effectiveness, and the amount included, it offers good value for the money for home sealing and crack filling projects. Review: Quality is Good but cost is too much - Cost is too much.. Similar products are available in lowest prices.. ## Features - Fills gaps and openings in pavement cracks, wall joints, foundations, sidewalks and driveways. - Non-absorbent, closed-cell polyethylene pre-caulking material. - Twist multiple strands together to fill large cracks, gaps. - Gray finish. - Size - 0.5 in. x 20 ft. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BQWOC0 | | Best Sellers Rank | 591,236 in Beauty ( See Top 100 in Beauty ) 6,513 in Body Oils | | Brand | M-D Building Products | | Colour | Gray | | Customer Reviews | 4.6 out of 5 stars 3,773 Reviews | | Global Trade Identification Number | 00043374714807 | | Item Form | Paste | | Item Weight | 0.02 Pounds | | Item form | Paste | | Item weight | 0.02 Pounds | | Manufacturer | M D Building Products | | Manufacturer Part Number | 71480 | | Material | Polyethylene (PE) | | Maximum Gap Fill | 0.5 Inches | | Maximum gap fill | 0.5 Inches | | Model Number | 71480 | | Number of Items | 1 | | Surface Recommendation | wall | | Surface recommendation | wall | | UPC | 043374714807 | | Unit Count | 1.0 count | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** M-D Building Products - **Colour:** Gray - **Item form:** Paste - **Item weight:** 9 g - **Maximum gap fill:** 0.5 Inches ## Images ![M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 - Image 1](https://m.media-amazon.com/images/I/61UnawlcwQL.jpg) ![M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 - Image 2](https://m.media-amazon.com/images/I/81JSrbnZQ5L.jpg) ![M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 - Image 3](https://m.media-amazon.com/images/I/818J6gOM3ZL.jpg) ![M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 - Image 4](https://m.media-amazon.com/images/I/81Py1S2524L.jpg) ![M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 - Image 5](https://m.media-amazon.com/images/I/81-xBTntOuL.jpg) ## Questions & Answers **Q: Is it safe to use near hot water baseboard radiators? I want to use it behind radiator cover as a temporary fix for a cold draft.** A: I suspect it would be safe if between the wall and the top cover of the baseboard, assuming you have standard baseboard covers like mine -- which never get super hot. It's foam, and will likely melt if too close to a heat source. To be on the safe side, I'd suggest first contacting the company directly. **Q: Can you use barge glue and plastidip** A: Call the manufacturer **Q: I live in an apartment and i feel a draft coming through the cracks of my window would this help? Im trying to avoid using weather tape** A: I purchased the medium backer rod and they are 1/2" thick. I think the one I purchased would be too thick to insert into the crack of your windows. Maybe there is a smaller version that would work for you. **Q: What caulking do u need for this ?** A: I did use caulk as it was used to support a garage door seal as the bottom of the door. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy to Work With and Effective for Filling Gaps *by A***M on 19 May 2026* This backer rod works well for sealing larger gaps and preparing joints before applying caulk or sealant. The foam material is flexible and easy to press into cracks, expansion joints, and uneven spaces without tearing apart during installation. It compresses nicely to create a solid base for caulking, which helps reduce wasted sealant and gives a cleaner finished result. The 1/2 inch thickness is useful for common concrete gaps and smaller repair jobs around the house or garage. The material feels lightweight but durable enough to hold its shape once installed, and the 20 foot length provides enough coverage for multiple projects. It is simple to cut to size and easy to handle even for someone without much repair experience. Considering the ease of use, effectiveness, and the amount included, it offers good value for the money for home sealing and crack filling projects. ### ⭐⭐⭐⭐⭐ Quality is Good but cost is too much *by R***I on 23 November 2018* Cost is too much.. Similar products are available in lowest prices.. ### ⭐⭐⭐⭐⭐ Used for my dogs ears *by N***I on 31 December 2024* I’ve been using very thin backer rod for posting my dog’s ears, and it’s been a fantastic solution! It’s lightweight, flexible, and provides just the right amount of support without causing any discomfort. It’s easy to cut to size and stays in place securely. Plus, it’s gentle on the ears and works perfectly with sports tape. Highly recommend for anyone looking for a reliable and comfortable ear-posting method! ## Frequently Bought Together - M-D Building Products - Versatile Gray Foam Backer Rod Set 1/2in x 20ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71480) - M-D Building Products - Versatile Gray Foam Backer Rod - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling, 3/8 by 20 Feet, (Pack of 2) (71464) - Sikaflex Self Leveling Sealant, Gray, polyurethane with an accelerated curing capacity for sealing horizontal expansion joints in concrete, 10.1 fl. oz Cartridge --- ## 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.tn/products/77420348-m-d-products-50in-x-20ft-backer-rod-for-gaps](https://www.desertcart.tn/products/77420348-m-d-products-50in-x-20ft-backer-rod-for-gaps) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-14*