For those interested in VanDeGraaff generators, I finally found a source for cheap natural gum rubber strip for belts. It glues very well with rubber adhesive. I purchased 2- 1/16” x 2” x 36” strips [$1.79 each] for a 36” belt and am getting excellent results with it. http://www.zoro.com/value-brand-rubber-gum-116-in-thick-2-x-36-in-387-116x/i/G1670995/ Doug _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla