Crawl Space Vapor Barrier Foundation Seal Tape, 1.5" x 108' Roll, Double Sided Tape, Made in The USA

This worked quite well in my crawlspace. I applied this directly to my previously-brushed-off concrete masonry unit (CMU) foundation walls to hang 8-mil polyethylene, and this tape was enough to hold the plastic up by itself, while we drilled holes through it and installed plastic clips. I think it'll do a great job long-term with sealing the moisture barrier to the wall and not releasing.It doesn't pull and stretch like pure butyl rubber tape does, which is a plus for installation but it does mean you need a knife to cut it. Don't recommend using scissors for this, since they'll inevitably end up eating some of the rubber and get progressively more useless as your project goes on.

This product worked extremely well attaching the vapor barrier to the concrete blocks. Good adhesive. The product has been durable and was simple to install. I highly recommend this product for this application.

Worked amazing on different surfaces.

I was expecting 1/8” thickness like the competing brands.

Great product and customer service

The tape i received at first looks like it will do what it was meant for. Sticking to concrete and the vapor barrier. It doesn't do either of these. Imagine yourself in a tiny crawlspace with an adhesive tape that barely sticks enough to hold itself on, then falls off as you go to unpeel the backing off while being in some uncomfortable tiny area, just so you can do it all over again because the only job it had it can't do. Even when I tried to really roll it on, it still comes off as if it can't bond. But, it will stick to your finger and itself. Not only did it not want to adhere to the foundation, it wouldn't adhere to the vapor barrier either. The few bits I got to attach are just temporarily in place until I find something else that works. Save your money and buy quality.