Preventing Dichroic Glass from Chipping when
One common problem with grinding glass with a coated side,
such as dichroic or iridescent glass, is that the coating tends to
chip when ground. Here are some suggestions for avoiding this
1. Scoring the glass on the uncoated side will generally
result in less chipping.
2. Standard thickness glass (1/8" -- 3mm) is less likely
to chip than thinner glass (1/16" -- 1.5mm).
3. An old grinding bit, which has significant wear on
the diamonds, will often work better than a new bit.
4. A grooved mirror grinding bit generally works better
than a standard or fine grit bit.
Click here for a related
topic, which involves using etching cream as an edge treatment for
the dichroic glass.
Copyright 2006 Brad Walker.
All rights reserved.
This tip taken from posters on
the Warm Glass bulletin board.