ORIGINAL: KaP2011
That's a good question Gerry, my next project is re-covering a 1/4 scale Spacewalker with worldtex fabric. I also intend to paint it but I had planned on useing rattle can paint.
I'm sure someone with experience will chime in with the correct answer.
I covered my Spacewalkers with Solartex, a similar product to Worldtex.
I sealed the weave, in areas that were simulated metal, using Minwax Polycrylic, and then primed them. Open bay areas were not primed, just painted with the color coats.