M-D Building Products 06635 3/8 in. x 3/4 in. x 10 ft. Black Sponge Window Seal for Large-Wide Gaps

I installed a portable pet door that surprisingly enough arrived without any rubber tape. Rather than complain about it, I bought this product to help seal minor gaps between the edge of the pet door and the vertical frame for the sliding glass door. It worked quite well and provided a nice seal. To reinforce this seal and to hide the rubber tape, I ran a strip of wood grained adhesive tape over this product and the vertical frame.

Had to add glue. The glue on the strip does nothing

As others said, if it is being sandwiched, it will work. If you need adhesive, look elsewhere.

Needs a better adhesive,

This product is fantastic, an actual weatherstrip not the half weight flimsy stuff you get from other brands. Yes, you will likely need to add your own adhesive, but very worth it.

This tape does not stick at all. I used it to seal a gap around my garage door, and it fell off after a few days. I was careful to clean the surface first and make sure that it was dry, but to no avail.

Not very adhesive actually, but it feels good.

Adhesive did not work. Ended up throwing out the item and buying another brand.