I just installed this on a custom topper and it looks very promising. The material looks and feels high quality and the adhesive feels very tacky, albeit very thin. It shouldn't matter much considering he'll be under compression for most of his life. It came with cleaning wipes and simple instructions that helped with trimming corners. I have yet to test its sealant on my truck but I'm sure it will work considering how thick and spongy it is.
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