WarmGlass.com

Hi, all, here's a finicky question:

I have small pieces of glass, diamond-shaped, standing up vertically in the kiln. They are held by slots in a mold that comes up to half their height. So half of their height is standing up vertically without anything to lean on. I want it this way so I can nicely fire polish the edges and both sides of the part that's standing free. The problem is, at fire polishing temperature the glass starts to slump over.

I'm using a Paragon Quickfire kiln, which heats up VERY fast. Could I get the fire polishing without slumping if I heated up slower?

Thanks,
David

dblood wrote:I'm using a Paragon Quickfire kiln, which heats up VERY fast. Could I get the fire polishing without slumping if I heated up slower?

Nope.

Fire polishing takes place at a higher temperature than slumping, so it will slump before it fire polishes. The type of kiln or rate of temperature increase doesn't matter.

dblood wrote:Hi, all, here's a finicky question:

I have small pieces of glass, diamond-shaped, standing up vertically in the kiln. They are held by slots in a mold that comes up to half their height. So half of their height is standing up vertically without anything to lean on. I want it this way so I can nicely fire polish the edges and both sides of the part that's standing free. The problem is, at fire polishing temperature the glass starts to slump over.

I'm using a Paragon Quickfire kiln, which heats up VERY fast. Could I get the fire polishing without slumping if I heated up slower?

Thanks,
David

You can grind and polish by hand, not an easy job. 120 grit, 200 grit, 400 grit, cork belt, cerium oxide and felt wheel...

Thank you for the replies. I guess I will see if I can finagle the fire polish before the tips slump too much. A little bit of slumping over might be nice actually...