PS. Does someone know of some sort of diamond rubberized
flexible mat that I can use with disc cement on an 8" or 6"
rubber flatting disc, about 3000 grit diamond for a pre polish.
They want the earth for preferal Nova wheels over here and they
wear out quickly on the edges with concave opal work. I usually
use the old 600 to 1200 wet and dry sandpaper for opal pre
polish. It gives excellent results but I am having problems with
overheating on some thin opal doublets and with sandpaper, you
really have to do some dry polishing to see what you’re doing.
And the old problem of polishing a flat surface on a flat disc
comes up with scratches still persisting in the centre of the
stone. Who supplies at a reasonable price?
thanks so much,