Quote Originally Posted by nick mulder

couldn't find this in a search - but how does one grind glass into the 'ground glass' finish ?

I have a piece of 2mm glass I want to make into a 4x5 back - how do I sand it ? is it just as simple as fine sand paper ?

if not what is the best technique ?

The BEST technique, the absolute BEST is contact Dave Parker at Satinsnow. If you are in need of a GG you won't do better. If you just want to scratch up some glass see the previous thread.