Blue Summit Supplies Vapor Barrier Tape, PE9 Polyethylene Film Sealing Moisture Barrier Seam and Seal Tape for Crawl Space or Marine Use, Waterproof White 9 Mil Poly Tape, 4 Inch, 180 Foot Roll

Perfect match for the crawlspace material I bought from Amazon as well.

I used this to join the rolled foam insulation that I put on the roof of a barn I built, and it worked perfect. The underside of the foam was white plastic, so the color was perfect and it stuck fine. I had some leftover and tried taping some other things only to find it didn't stick as well. Bottom line, use it for what it was meant for.

Great Tape, works good with insulation install in our new metal building. Strong sticky moisture barrier tape. Like the tiny serrated edge on the tape roll makes it simple to tear tape when up on a ladder.

This tape is pricey but it’s very good at sealing seams of vapour barrier.

This stuff is terrific - sticks to all sorts of material (I've had it adhere to concrete for two years!).Works very well in dirty environments and aggressively sticks to plastic vapor barriers, while somehow allowing you to reset the tape if need be. Also very easy to unroll and cut.