Very strong and sticky. This 3" wide tape is much better than the 2" tape a national contractor used when installing vapor barrier on the floor of my crawl space. I will use some of it to better seal what they did. Highly recommended product!

This product was well worth the money, I have used several double sided tape products and never found one nearly as excellent as this product. The strength of the adhesive is outstanding!

Block wall was completely dry and brushed off, but the tape would not stick to it. After attempting for the first 10ft I just gave up and used a caulking instead. It seemed to be more than sticky enough, just wouldn't stick to my concrete block wall.

Doesn’t stick very well to block wall, even though it was bone dry. Sticks amazingly to the vapor barrier though.

Sticks well to vapor barrier, concrete block and brick. You should have a roller to firmly press it down into the wall and also to press the vapor barrier onto it. I used the type of roller that is used to install sound deadening material in automobiles. It has a heavy metal wheel with ridges. (Amazon – $10.) I found it easier to drill the holes first, mark the spot where you drilled just above, then put down the tape and the vapor barrier. You can feel where the hole is and punch through with a pencil, then put in the Christmas tree. Which ever way you do it, you must brush the wall before applying the tape. Do not skip this step! Get that dust and cobwebs off there, give the tape a chance to stick. Peel the paper back a little at a time. Apply the vapor barrier carefully, don’t even think about peeling it off and re-positioning it.