All - several years ago I purchased a kit built Ultra Sport 40 that had been covered in (I think) Ultracote. Never had any issues with the covering, but over the winter, there have been wrinkles that have developed. I attempted to re-shrink with a covering iron and sock. This made the issue worse, and in some cases seem to harden the 'ridge' of the wrinkle, and even created MORE wrinkles! I then purchased a heat gun, and attempted to gently heat up the covering in hopes that would re-shrink it, but instead, the covering just lifted away from the fuse!

I'm at wit's end here, and in need of help form the folks on here who know covering, and how to fix this problem, as this is by far my favorite plane.

Can anyone provide some assistance? I'm not familiar with Ultracote, and trying to figure what temp I need on the iron, and what technique to use to get these wrinkles and make the covering 100% smooth as it used to be.

Pictures of the issue below.