--- product_id: 43832677 title: "M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 150ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71552)" brand: "m-d building products" price: "597 zł" currency: PLN in_stock: true reviews_count: 13 category: "M D Building Products" url: https://www.desertcart.pl/products/43832677-m-d-building-products-versatile-gray-foam-backer-rod-set store_origin: PL region: Poland --- # 150ft continuous length Waterproof & weather-resistant M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 150ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71552) **Brand:** m-d building products **Price:** 597 zł **Availability:** ✅ In Stock ## Summary > 🛠️ Seal smart, live comfortable—never let gaps steal your peace of mind! ## Quick Answers - **What is this?** M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 150ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71552) by m-d building products - **How much does it cost?** 597 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/43832677-m-d-building-products-versatile-gray-foam-backer-rod-set) ## 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 - • **Endless Coverage:** 150ft roll means you’re ready for any project, big or small—no mid-job runs to the store. - • **Precision Gap Filler:** Perfect 5/8in thickness for medium gaps ensures a snug, draft-proof seal. - • **Versatile Home Armor:** Ideal for sealing concrete, expansion joints, doors, windows, and more—boost your home’s airtightness and comfort. - • **Effortless Installation:** Simply push into joints—no adhesives or mess, saving you time and frustration. - • **Weatherproof Durability:** Built to withstand rain, sun, and temperature swings for year-round protection. ## Overview The M-D Building Products Versatile Gray Foam Backer Rod is a 5/8in diameter, 150ft long, waterproof foam rod designed to fill medium gaps in concrete, expansion joints, and cracks. Its weather-resistant construction ensures durable, airtight seals indoors and outdoors, providing a reliable base for caulking and enhancing home insulation and draft protection. ## Description Product description Compare Backer Rod Small Gray Backer Rod Medium Gray Backer Rod Large Gray Backer Rod Ex-Large Gray Backer Rod XX-Large Gray Backer Rod Review: good quality, good service - I ended up ordering the wrong size for my project and had to return. However, the backer rod seems to be made of high-quality foam, and it feels dense and durable. It has a nice, consistent texture that should be great for filling gaps and joints. I can't speak to how well it works in the long term, but it appears sturdy and like it would do the job as intended. While I didn't end up using the backer rod, desertcart's return service made the process incredibly easy and the refund was instant. Review: Good product - Works very well for what I need. ## Features - Quality Construction: This gap filler is made from high-quality, weather-resistant materials, ensuring long-lasting durability and performance. It effectively seals medium gaps between surfaces, preventing drafts and dust from entering your home. Suitable for both indoor and outdoor use, it withstands various weather conditions, providing consistent protection and improved comfort. - Concrete Gap Filling Excellence: Our product excels in filling concrete gaps, creating a strong foundation for caulking projects. Utilize this foam to effectively fill joints between surfaces, ensuring dependable adhesion for caulking applications that promise enduring durability and resilience. - Complete Gap Solution: This product provides versatile gap filling, preventing drafts and offering a sturdy base for caulking. Perfect for expansion joints in driveways and sidewalks, it can be twisted for larger gaps and easily trimmed with scissors to the desired size. - Effortless Installation: Enjoy a hassle-free setup by effortlessly pushing the backer rod into most joint openings until it fits snugly. Once installed, enhance the seal further by applying caulk on top—no need for messy sealants or adhesives. - Versatile Application: From repairing leaky roofs and window sills to addressing drafty doors, the Backer Rod is your go-to solution! Beyond sealing surface gaps, it excels in insulating, enhancing airtightness, and damp-proofing your home—offering multifaceted benefits for various household needs. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C7EJHL0 | | Best Sellers Rank | #42,055 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #158 in Hardware Sealers | | Brand | M-D Building Products | | Brand Name | M-D Building Products | | Color | Gray | | Customer Reviews | 4.7 out of 5 stars 1,614 Reviews | | Global Trade Identification Number | 00043374715521 | | Included Components | MD Building - 71552 | | Item Form | Foam | | Item Type Name | MD Building - 71552 | | Item Weight | 1 Pounds | | Manufacturer | M-D Building Products | | Material Type | Foam | | Maximum Gap Fill | 0.63 Inches | | Model | MD Building - 71552 | | Number of Items | 1 | | Part Number | 71552 | | Surface Recommendation | Door | | UPC | 043374715521 | | Unit Count | 1.0 Count | | Warranty Description | Warranty | | Water Resistance Level | Water Repellent | ## Product Details - **Brand:** M-D Building Products - **Color:** Gray - **Item Form:** Foam - **Item Weight:** 16 ounces - **Maximum Gap Fill:** 0.63 Inches ## Images ![M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 150ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71552) - Image 1](https://m.media-amazon.com/images/I/61HHJ4QXlvL.jpg) ![M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 150ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71552) - Image 2](https://m.media-amazon.com/images/I/81GJlZqoVsL.jpg) ![M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 150ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71552) - Image 3](https://m.media-amazon.com/images/I/818J6gOM3ZL.jpg) ![M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 150ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71552) - Image 4](https://m.media-amazon.com/images/I/81Py1S2524L.jpg) ![M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 150ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71552) - Image 5](https://m.media-amazon.com/images/I/81-xBTntOuL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ good quality, good service *by M***L on November 9, 2024* I ended up ordering the wrong size for my project and had to return. However, the backer rod seems to be made of high-quality foam, and it feels dense and durable. It has a nice, consistent texture that should be great for filling gaps and joints. I can't speak to how well it works in the long term, but it appears sturdy and like it would do the job as intended. While I didn't end up using the backer rod, Amazon's return service made the process incredibly easy and the refund was instant. ### ⭐⭐⭐⭐⭐ Good product *by C***A on October 8, 2025* Works very well for what I need. ### ⭐⭐⭐⭐⭐ Great price. *by M***Y on October 23, 2025* Works great! --- ## 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.pl/products/43832677-m-d-building-products-versatile-gray-foam-backer-rod-set](https://www.desertcart.pl/products/43832677-m-d-building-products-versatile-gray-foam-backer-rod-set) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-06-01*