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.

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

BUY THIS AND DO IT YOURSELF.

This tape works great but I ran short twice. It is expensive and you will use more than you think specially around corners. I looked at using white duck tape at lowes for 7bucks.

I found dealing with CrawlSpace Repair easy and efficient. In addition to the materials I purchased, I received very helpful advice—being a homeowner, not a professional. As to the products, the Foundation Seal Tape is absolutely excellent. Originally, I thought it was very pricey, but once I began using it, I changed my mind. This tape is great for this purpose. I used it to attach the vapor barrier to the foundation walls. Your 12 Mil GuardianLiner™ seemed very strong and should work perfectly. I’m sure there are other similar products on the market, but no customer of yours will go wrong with the GuardianLiner™.