Cutting glass with plasma cutter?

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I looked on YouTube for people cutting stuff with plasma cutter and saw a several on cutting glass.  I was taught that plasma will only cut through any conductive material, and glass isn't one of them.   Thoughts?
Reply:I haven't seen those videos, but if you were to paint the area to be cut with aluminized paint it would conduct electricity and thus allow for arc initiation and cutting I believe. My concern with doing this would be that rapid cooling from the process might cause cracking too. Best regards, Allanaevald
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Reply:We need to see these videos.  12v battery, jumper cables, and a 6013.I only have a facebook page. https://www.facebook.com/pages/VPT/244788508917829
Reply:If you have a plasma that can run in continuous pilot mode....it will cut glass. Expect extremely short consumable parts life, and cracked glass. It does a terrible job on glass, trust me!Jim Colt  Hypertherm
Reply:Originally Posted by jimcoltIf you have a plasma that can run in continuous pilot mode....it will cut glass. Expect extremely short consumable parts life, and cracked glass. It does a terrible job on glass, trust me!Jim Colt  Hypertherm
Reply:Glass melts at a pretty low temperature.....so the plasma torch pilot arc is more than adequate. The glass "crazes" and usually shatters due to the rapid thermal change....not a good process at all. Sure.....you could put a sacrificial sheet either in front of the glass or behind the glass and add even more power, more temperature......probably would get a larger pile of shattered / crazed glass much faster! If the metal was in front of the glass it would embed the molten glass with particles of metal as well.Glass cuts quite well with a waterjet.....a much better process than plasma or laser for the application.Jim Colt  Hypertherm
Reply:Thanks Jim.  Good to know.30+ yrs Army Infantry & Field Artillery, 25 yrs agoMiller 350LX Tig Runner TA 210, spool gunLincoln 250/250 IdealArcESAB PCM 500i PlasmaKazoo 30"  vert BSKazoo 9x16 horiz BSClausing 12x24 lathe20T Air Press