Ratings & Reviews for M-D 0.5-in x 20-ft Closed cell Backer Rod, Gray

What Customers Are Saying

Customers overwhelmingly praise this backer rod for effectively preparing gaps before caulking, with most reporting it works exactly as intended. Reviewers consistently highlight that it fills gaps efficiently, reduces sealant usage, prevents mess, and creates durable seals around windows and doors. Many appreciate its ease of installation, flexibility, and ability to compress into tight spaces. Customers note it stops cold drafts and improves insulation. The material is described as high-quality and versatile across diverse applications. A few mention the diameter runs slightly smaller than expected, but this rarely impacts satisfaction. Overall, reviewers strongly recommend it as a reliable, cost-effective solution.