I use Ultracote mainly because I have better success getting the seams and edges to seal better
and it seems to be more temperature tolerant than
some of the other coverings I have used.
For fabric I have used Colortex, Sig coverall,
and am trying out Supercoverite. The Super Coverite seems fine but we will see when it is done. I have also used the painted Coverite
(I can't remember the name) but wasn't too happy with the end result.

Sam