Great products... installed in conjunction with a radon fan and decreased radon from a reading of 8+ to under .12

We used the 2 sided foundation seam tape to install heavy 20mil vapor barrier over several days onto dry foundation walls. It was 4 days from our first wall panel installation until we did all the pins at the end. We had NO panels fall off the wall while finishing.

TIP: Take a cheaper tape like duck tape and use it like a lint roller to remove dust and loose bits before applying the tape. It was super helpful once we thought to do it.

I just had my basement walls parged. The stucco is clean and dry but this tape would barely stick to it. It's a waste of money. Use the foundation pins and seal with the caulk instead.

The Foundation two-sided Seal Tape was much stronger than I expected (impressive). Sticks and holds to the foundation and vapor barrier plastic without pulling away - even if/when you accidentally pull the plastic too hard.

I had a really difficult time getting this to stick to the concrete. I brushed and cleaned the wall prior to applying the seam tape, but it did not want to stick. I ended up stapling the vapor barrier to the sill plate until I was able to get the pins installed. So, it appears the the concrete needs to be REALLY clean for this to be effective.