{"product_id":"hkacsthi-foam-backer-rod-for-gaps-concrete-crack-filler-1-5-inch-x-6-6-feet-black","title":"HKACSTHI Foam Backer Rod for Gaps – Concrete Crack Filler, 1.5 Inch x 6.6 Feet (Black)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eHKACSTHI Foam Backer Rod is a flexible, moisture- and temperature-resistant foam rope designed to back caulk and seal joints across concrete, wood, metal, and mixed substrates. Its round profile helps the sealant bead sit evenly, reducing sag and edge creep. The foam is soft enough to compress for a snug fit but resilient enough to maintain its shape over time, supporting a neat, professional finish even as temperatures and humidity shift throughout the year.\u003c\/p\u003e\u003cp\u003eBeyond just backing, this rod acts as a spacer that helps you maximize sealant efficiency by occupying extra space in larger gaps. The material’s performance is built for everyday use—indoors and outdoors, in damp or cool environments—so you can handle a range of projects with greater confidence and less waste.\u003c\/p\u003e\u003ch3\u003eKey benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDurable backing that resists moisture and temperature changes for longer lasting joints.\u003c\/li\u003e\n\u003cli\u003eSoft, compressible foam that fills gaps cleanly and supports a smooth, even sealant bead.\u003c\/li\u003e\n\u003cli\u003eCost-effective solution for large gaps and degraded caulk, helping reduce waste and replacement cycles.\u003c\/li\u003e\n\u003cli\u003eCustomizable length: cut to fit; twist strands for extra bulk in very large gaps.\u003c\/li\u003e\n\u003cli\u003eEasy to install: insert into the joint and apply sealant for a neat, uniform edge.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to install and use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePrepare the area by cleaning the joint, then insert the backer rod evenly, pressing it to sit below the surface.\u003c\/li\u003e\n\u003cli\u003eCut or twist to achieve the right fill, apply the sealant, and tool for a clean, professional finish.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eExpansion joints in driveways, sidewalks, and pavement where movement occurs.\u003c\/li\u003e\n\u003cli\u003eCracks in walls, around doors and windows, and joints near frames that need a stable base for sealant.\u003c\/li\u003e\n\u003cli\u003eOutdoor weatherproofing to reduce drafts and improve the longevity of caulked joints.\u003c\/li\u003e\n\u003cli\u003eDIY projects and crafts that benefit from a flexible backer for neat seams and resilient structure.\u003c\/li\u003e\n\u003cli\u003eSealing projects in cold weather or variable climates where joint stability matters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the dimensions and cut options for the HKACSTHI Foam Backer Rod?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Dimensions are 1.5 inches in diameter by 6.6 feet long; length can be cut to fit diverse gaps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are common uses for this backer rod?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Ideal for gaps and joints in driveways, sidewalks, walls, windows, doors, and craft projects; supports sealants and helps create a clean finish in DIY work.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HKACSTHI","offers":[{"title":"Default Title","offer_id":53093802705007,"sku":"B0F1RQT4HD","price":23.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0598\/3087\/files\/hkacsthi-foam-backer-rod-gaps-black-1-5in-6-6ft.jpg?v=1778779778","url":"https:\/\/taskholt.com\/products\/hkacsthi-foam-backer-rod-for-gaps-concrete-crack-filler-1-5-inch-x-6-6-feet-black","provider":"TaskHolt","version":"1.0","type":"link"}