Double Sided Butyl Tape (1.5" x 100') Roll

Very poor adhesion. Prepped the concrete wall, but it just wouldn't stick to the concrete or the vapor barrier I was trying to attach. Sadly, just throwing out the additional rolls I purchased.

After doing my research, I found out that butyl tape is the way to go for sealing/joining the vapor barrier overlaps in my vented crawlspace and this tape worked perfect,was simple to apply and does exactly as described. You get a good amount of tape per roll and the price was extremely reasonable.

Quality product. Sticks great. The product is thicker than most others so make sure you are aware. Will buy again

Overall very pleased with the performance of this butyl tape. The tape rolled out easily and adhered to the cinder block wall very well. I did drill the christmas tree plug holes first and then used a wire brush to remove loose debris before attaching the tape. A small roller worked well to make sure the tape was firmly seated before the backing was removed. Had absolutely no issues with the tape falling off or sagging. Quite impressed.

I have used several brands of butyl rubber, double-sided butyl tape, but this is by far the best of my experience. Some "sealing tapes" are thicker, but lack this tape's adhesive strength. Others are sticky enough, but do not have reinforcement like this one, so they stretch and even come off the paper backing before being placed in position. This tape has reinforcement threads built in and adheres to concrete and cinder block walls better than any I have used. In my opinion, it is the best for crawl space poly sheeting installation as used to encapsulate crawl spaces. It holds very well and doesn't droop or fall over night in damp conditions. I use a J-roller to press the rubber into the cinder block wall and the poly. Have had absolutely great results. Oh, the tape comes well packed and wrapped, so it doesn't stick to the packaging nor have damaged edges. By the way, a damaged edge makes unrolling the tape difficult as the tape sticks to itself at those points. This company deserves the highest credit for excellent packaging. I'll buy this until I am done with crawl spaces. The price is also competitive with lesser quality tapes and shipping is fast.