I thought door sealing foams were all the same. This one is a very tightly blown foam and makes a great seal. Adhesive is substantial, it really sticks. No more drafts, no more crickets invading my space! Even ants haven't figured out how to get in yet; but I did a very careful 1 piece installation, v-grooving the corners not trying to compress it into them or square butt them. Do it right and you'll love it as much as I did. Like the matteress ads, it springs back, doesn't stay flat. Open the door and in minutes the foam recovers to it's original thickness.