CrawlSpace-DIY - Vapor Barrier Tape, 4" x 180' PE 12mm Polyethylene Tape, Moisture Barrier Seal and Seam, Insulation Tape for Crawl Space Vapor Barrier, Marine & More

I used this tape to connect/seal the moisture barrier that I laid under my basement floor. The tape was easy to apply and was very sticky and secure. I like that it was very wide, so it was a bit forgiving on being straight. The tape is very durable and is also moisture proof, which is a requirement for a vapor/moisture barrier installation. The tape is easy to cut with a razor blade or pair of scissors.

Great quality. Durable. Very sticky. Thick. Little tough to get off but that's because it has great adhesive

This is my second purchase. The first roll I purchased was used to put down thick plastic over the first story of our 2 story garage build to protect the second story subflooring during the winter work hiatus. It was very durable and worked great to keep the seams sealed up even with standing water. We are now using the rolls from our second purchase to seal the house wrap and around window installations. The wide tape is much easier to work with than the narrow "Ty***" brand name tape, has great adhesion and is at a better price point. I would definitely purchase yet again.

Great tape for crawl space. Good adhesion and it’s strong.

Even though I had a few areas that the heavy duty tape did not bond well, I still would probably repurchase. I used the tape in a crawlspace encapsulation to re-tape some areas that had previously been taped. Tape is thick and hard for an old lady like me to pull from the roll. I had to use scissors to cut tape.Tape is thick & sticky and did bond in some areas but didn't do well around a column sitting on concrete. No moisture was on the concrete when I tried two times to tape column area, however, tape did not adhere. Price of tape for the quality was good in my opinion.

This 4" wide vapor barrier tape exceeded my expectations. It sticks extremely well, creating a strong, reliable seal—exactly what you need for moisture control. One of the best features is that while it's tough and holds firm, you can still tear it by hand without needing scissors, which makes installation quick and hassle-free. It also blends in nicely with standard vapor barrier sheeting, giving the whole project a clean, professional look. Highly recommended for anyone working on crawl spaces, basements, or any other vapor barrier setup!

I used several rolls of this Crawlspace DIY seam tape in my crawl space encapsulation project. This stuff worked extremely well and has a strong affinity to the poly vapor barrier I used. The tape went down well and adhered very well. I used a solid 10 mil vapor barrier so the surface was very smooth making it easier to apply the tape. As with any tape a dust free substrate is desired for the best adhesion. I also smoothed over with a cloth to improve contact with the barrier. This Crawlspace DIY tape is highly recommended. BTW keep some on hand for repairs.

Excellent product, large size helps close seams and easy to work with