Used foundation seal tape for small crawlspace. Impressed with adhesion to the concrete foundation. It allows for some adjustment of the vapor barrier without it ever pulling from the concrete. Not sure of longevity but stayed put for many days while I added pins. Works as promised.

Worked well and with temps in the 60s, was not too sticky, but bonded well to dry and coated concrete once it was prepped.

Tape would not stick to one wall in this job, as it was wet on the surface and saturated with moisture - however - nothing we tried would stick so its not the fault of the tape. Was able to make it work with a combination of silicone adhesive on the tape to create the seal and a foundation pin every 6". A little overkill, but it worked perfectly. Luckily, this wall was only 5'.

Good stuff - recommended

This tape is the real deal. I've referred crawl space repair.com to a local insulation company that does crawl space encapsulating because you guys are the best.

I have used this tape on several crawlspace encapsulation projects and it has always performed flawlessly. I have used it in various environmental conditions including very wet crawlspaces. I have never had a problem with it not sticking to the wall. I do clean concrete block walls with a stiff bristle brush, not a wire brush, prior to application of the tape. I also make sure that the walls are not damp to the touch. This tape works great and really bonds well to liner material.

Very sticky, good hold on cmu blocks + it helped me to catch bunch of baby snakes when I left it open preparing for the next day installation of vapor barrier