I have a 2008 38 as well. We have not experienced what you are seeing. The material in insets is synthetic teak - essentially its PVC. In my owners manual stuff that came with the boat there was a brochure from the manufacturer. Company is Flexiteek and their web site is
http://www.flexiteek.com Are you sure they are out of business? I found them on line. Actually bought some material from them last year. You actually work with their distributors not direct. And I could swear I've seen ads in some of the sailing magazines recently My project was to upgrade the non skid on the companionway steps. What the boat came with was this translucent stick on stuff. It held dirt, was impossible to clean and then started to let go. I contacted the Flexiteek distributor for the Michigan area (SeaJay Marine Group) sent them pictures of what I was trying to do,we talked on the phone, they made design suggestions, quoted me the cost, shipped the material and the adhesive, gave me instructions on how to do it. From experience getting the right fit / look for your insets is the difficult part. The actual installation isn't too bad. I can't say enough good about how helpful the woman at SeaJay was. Was a great experience, looks great, provides sure non skid footing on the stairs, and was easy to install. If they aren't available try Permateak, Plasteak, or NuTeak. They all make similar products. I had a second thought. If the Flexiteek is in good shape, can you just contact one of the distributors and get some new adhesive? Maybe you can carefully work up the edges, apply new adhesive and seal it back down