From:
"George Graham" <georgergraham@zzzzzzzzzzz>
Date:
Fri, 13 Jan 2006 10:05:57 -0500
Subject:
polishing basalt and other materials
Bob said,
Quoted text begins.Heat usually is the enemy in this process and can cause things like warping
in metal and spalling or fracturing in stone.One of the reasons(but not the
only one) water is introduced in cutting and polishing most stone.
End of quote.
I want to follow up on Bob's statment.
Is the introduction of water a problem if you are adding cold water to a
very dry, hot spot, which would would create a sudden tempeture change that
might fracture and damage the stone?
I've never polished basalt, but have done a lot of work with India black,
which I think is very close to basalt. I've watched a white cloud appear in
a spot I buffed too long when polishing with tin oxide and a damp, hard felt
wheel.
George Graham
- References
- message 00072: polishing basalt and other materials - Bob Hackett (12 Jan 2006)
- Previous by Thread: message 00072: polishing basalt and other materials - Bob Hackett (12 Jan 2006)
- Next by Thread: message 00077: polishing basalt and other materials - Robert Houghtaling (13 Jan 2006)
- Previous by Date: message 00086: pietrasanta-advice needed - VisualThinker7 (13 Jan 2006)
- Next by Date: message 00088: polishing - wendita77 (13 Jan 2006)
