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Firing a double walled vessel

Posted: Thu Nov 06, 2014 7:28 pm
by Peter Angel
hello all,

I would like to paint vitreous enamels onto double walled borosilicate glass.

Borosilicate glass has a high slumping temperature. That way I can use lead free or low lead enamels (I hope!)

Do you think the double walled glass might explode in the kiln? That is, the air trapped between the 2 layers of glass heats and expands causing an explosion?

double walled glass.JPG
Regards
Pete

Re: Firing a double walled vessel

Posted: Thu Nov 06, 2014 8:07 pm
by Valerie Adams
I had a purely decorative piece once that required colors I could only achieve through Pebeo vitreous enamels (the 150 and 160 versions). I applied them, then only heated in the kiln until they cured at about 350°. They're designed to cure in a home oven so I don't see why they wouldn't work on those glasses.