Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this backer rod for effectively preparing gaps before caulking, with most reporting it saves sealant, reduces mess, and creates durable, long-lasting seals around windows, doors, and flooring. Reviewers highlight its ease of use—easy to cut, compress into tight spaces, and hold in place through friction—making it versatile for driveway cracks, pool edges, and laminate perimeters. Many note it stops cold drafts and improves home insulation. Customers commend its quality and value, with strong loyalty evident. A few mention slightly smaller diameter than expected, but overall performance feedback is consistently positive.
Customer review summary generated by AI, including incentivized reviews.Gap filler
Would RecommendI bought this to use when caulking a large gap. I works just fine as long as you have adequate space to apply enough caulk.
Worked!
Would RecommendWorked as it was supposed to.
Easy to cut and squeeze into place.
Would RecommendI used this for a gap along my roofline. It allowed me to squeeze it into place and put caulk around it. Supposedly it is closed cell so it should also help seal it up. It is super easy to cut and has good flexibility.
Verified Purchaser
This product was not needed. For our floor installation,
Good backer rod
Would RecommendIt is good backer rod. No problems with it and it is easy to work with. Compresses in tighter gaps and caulk adheres well to it.
Good product
Would RecommendFound the product useful to fill large gaps in siding