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Cutting Glass Mirror
An ordinary glasscutter can be used to
cut glass mirror, but there are a few tips to keep in mind.
1. Cut on the glass side (the side you look into), not
the back side (the side with the coating).
2. The cutting will go much more
easily with a well-oiled cutter or after brushing kerosene (or
cutting oil) on the surface to be cut.
3. After cutting, you may want to spray the back side
with a mirror edge sealant. This helps keep the silver
coating from chipping. A less expensive substitute for
mirror sealant is clear lacquer (made by Krylon, and others).
Ordinary mirrors can not be fired in the kiln. The coating
on the back is organic and the mirror will be ruined if fired.
Two way mirrors (also called "first surface mirrors") can be
slumped at very low temperatures (i.e., under 1120F/600C).
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Copyright 2006 Brad Walker. All rights
reserved.
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