I prefer Solartex (or Worldtex, Colortex or any ****tex) over most other types of covering. All the ****tex's are pretty much the same. No, solartex is not plastic as stated above, it is a fabric. I have never had any problems on it saging or loosening with time or humidity but; I usually put a cover coat or sealer coat over it just to make cleaning it easier. The weave or grain does collect dirt easier than the films do if not overcoated. Another good covering is Ceconite. It is not painted though and does not have a self adhesive backing, you must use nitrate dope or some other adhesive painted on the structure befor application.