High current

I too tried the the bleach thing only on a pair of 4xa grills only to have them fall apart as well. I would only use diluted bleach on small areas heavelly stained. I bought the cloth on eBay that's virtually identical to original. Great cloth ,but I found it too clean looking and even airborne dust can leave a permanent smudge. My solution was to quickly soak it in natural colored wood stain and pat it gently with a cloth to get all the excess off. Lay it flat to prevent wrinkles,let dry then cover frame. This gives it a great vintage patina that resists smudges