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

Product is amazing, it sticks to everything. Heavy duty but still able to tare with your hands for ease of application. The width makes it easy to apply. I couldn't ask for better tape.

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.

Im involved in a crawI space encapsulation and have reordered this vapor barrier tape. Its tough stuff.You need scissors or a razor knife to cut it, you can't tear this tape.Good and sticky, I've even used it on the concrete block.The 4 inch was probably wider than I need but the cost was the same as others 3 inch tape of the same length.

The roll is a pretty good size (see pic quarter for scale). It seals good, sticks very well to itself and the plastic vapor barrier, and decently to concrete. I used it to seal my vapor barrier when I redid mine. It is nice and wide and therefore a bit forgiving when doing projects. Very nice tape in my opinion!

It was very sticky and worked great

I purchased 3 rolls of the 4" seam tape initially to cover my 2,500 sq foot crawls space seams. The tape is extremely tacky and very forgiving. It will cover over light debris such as dust and dirt but no tape can cover excessive amounts. The 4" seal tape is a great width to use during the sealing of overlaps and seams to guarantee maximum sealing of the joints. The Crawl Space Tap is very durable and fairly easy to work with. The high level of tackiness provides great comfort that an effective seal has occurred. The product worked so well that I just ordered 2 additional rolls to ensure that I have enough to complete my encapsulation product.

Great tape! This is very sticky so I found it easiest to work with it bare handed. Previously it got stuck on my gloves constantly. You need a very sharp blade to cut this cleanly as it is quite strong and durable. We used it to repair insulation on our ductwork, as well as a way to keep overhead insulation batts in place. The occasional 40mph winds were causing the insulation to come loose in the attic so I put a run of tape across multiple batts and stapled the tape to the rafters. It takes time but I probably won’t have to do it again.

The tape works great. Extremely sticky and sealed everything very well. HIGHLY recommend this product.