Tondiamo Caulk Saver Foam Backer Rod Gap Filler Concrete Rope Caulk Gray Sealant Backing Rod for Fence Wall Gap Floor Window Door Windproof Home Repairing(1/2 Inch x 30 Ft)

great product have used it in many applications. Had our house painted the painter’s loved the product for filling gaps before caulking.

Perfect fit and works great

Works great to fill gaps between concrete slabs before filling. Compresses easily, so buy the size to fit your gap (size up as needed). Fill gap with clean sand to ensure the backing rod is within a quarter inch of the top surface.

I used this when we had flooring installed and wanted a different look rather than the old baseboard painted or replaced. There was quite a gap between the floor and the start of the wall and caulking the company used did not match the flooring well enough. This worked well to fill the gap for the most part, though sometimes it would not expand where needed so it took twice as much. All in all it is a decent product. I would buy again if I need it while working on another project. Decent value for the money.

I had a gap between the driveway, and the garage floor. I was getting dirt and leaves in there, and also water was running into, and possibly under the foundation. I cleaned it all out with air, and pressed this into the gap, then went over it with a self leveling sealer. The end result was a professional looking finish that will save me headaches in the future.

Fast delivery. Fair price. Most stores fail to have in stock.

The first pic is what I received. A tangled up mess that had to be untangled first just to use it. The second pic is from the listing. Do they look the same to you??? It was hard to work with simply because I had to untangle it first and where it was tightly tangled it had smashed sharp bends. Not worth the money.

It ends up that I never used it for what I bought it for some ceiling concrete joints. It was so ungodly hot here in Florida but recently I got new carpeting and there was big gap underneath the door and we were getting a lizard and we couldn’t figure out where they were coming from . I Use that pushed it in with a putty knife and then silicone caulk because there was some moisture intruding. It should’ve filled it when I got the new door..

sealing cracks in cement