--- product_id: 77420348 title: "M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480" brand: "m-d building products" price: "B/.68" currency: PAB in_stock: true category: "M D Building Products" url: https://www.desertcart.com.pa/products/77420348-m-d-products-50in-x-20ft-backer-rod-for-gaps store_origin: PA region: Panama --- # twist strands for large cracks closed-cell polyethylene 0.5in max gap fill M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 **Brand:** m-d building products **Price:** B/.68 **Availability:** ✅ In Stock ## Summary > 🧱 Seal the deal with confidence—never let gaps steal your style! ## 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?** B/.68 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/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 - • **Subtle Gray Finish:** Blends discreetly into most surfaces, maintaining a clean, polished look - • **Versatile Use Cases:** Perfect for pavement, walls, foundations, sidewalks, and driveways—professional-grade reliability - • **Precision Gap Filler:** Seamlessly fills cracks up to 0.5 inches for a flawless finish - • **Customizable Application:** Twist multiple rods together to tackle even the widest gaps with ease - • **Durable Closed-Cell Design:** Non-absorbent polyethylene ensures long-lasting insulation and moisture resistance ## Overview M-D Products 0.5in x 20ft Backer Rod is a premium closed-cell polyethylene filler designed to insulate and cushion gaps in pavement cracks, wall joints, foundations, sidewalks, and driveways. Its non-absorbent, twistable strands provide customizable gap filling up to 0.5 inches, ensuring durable, water-resistant protection with a sleek gray finish. ## 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. ## 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 | 682,329 in Beauty ( See Top 100 in Beauty ) 7,459 in Body Oils | | Brand | M-D Building Products | | Colour | Gray | | Country Of Origin | USA | | Customer Reviews | 4.6 4.6 out of 5 stars (3,736) | | Global Trade Identification Number | 00043374714807 | | Item Form | Paste | | Item Weight | 9 g | | Manufacturer | M D Building Products | | Manufacturer Part Number | 71480 | | Material | Polyethylene (PE) | | Maximum Gap Fill | 0.5 Inches | | Model Number | 71480 | | Number of Items | 1 | | Number of Packs | 1 | | 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/413DabwbHsL.jpg) ![M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 - Image 2](https://m.media-amazon.com/images/I/4141cO3izOL.jpg) ![M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 - Image 3](https://m.media-amazon.com/images/I/51nxHrx41GL.jpg) ![M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 - Image 4](https://m.media-amazon.com/images/I/51SblrTei7L.jpg) ![M-d Products .50in. X 20ft. Backer Rod For Gaps & Joints 71480 - Image 5](https://m.media-amazon.com/images/I/51E5E0vYkLL.jpg) ## Available Options This product comes in different **Size** options. ## 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. ## 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.com.pa/products/77420348-m-d-products-50in-x-20ft-backer-rod-for-gaps](https://www.desertcart.com.pa/products/77420348-m-d-products-50in-x-20ft-backer-rod-for-gaps) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-10-29*