Plaster Mold Making & Some Ceramics - Other Crafts

M MadDogMike Grand Member (8 years) The Anvil of the Sun Joined: Mar 30, 2008 Posts: 11040	M MadDogMike Posted posted on Fri, Jul 24, 2009 4:30 PM I'm no expert and you may have already tried these but here's some suggestions: Get some witness cones to be sure you are firing to the desired cone. Be sure the bisqued ceramic is clean when you glaze it, no dust, oil, fingerprints etc. Same with the brushes. It's possible that your underglaze and clear glaze are not compatible, especially if they are not the same brand. Too thick of a layer of ungerglaze will cause crawling, try thinning the underglaze with water or using less coats. Seems like the glazing is the most troublesome aspect of ceramics. I have been using mostly Duncan glazes with a few Maycos. The only problem I had was shivering when I mixed low-fire and high fire clays. Maybe someone else will chime in with some more good ideas

I'm no expert and you may have already tried these but here's some suggestions:

Get some witness cones to be sure you are firing to the desired cone.

Be sure the bisqued ceramic is clean when you glaze it, no dust, oil, fingerprints etc. Same with the brushes.

It's possible that your underglaze and clear glaze are not compatible, especially if they are not the same brand.

Too thick of a layer of ungerglaze will cause crawling, try thinning the underglaze with water or using less coats.

Seems like the glazing is the most troublesome aspect of ceramics. I have been using mostly Duncan glazes with a few Maycos. The only problem I had was shivering when I mixed low-fire and high fire clays.

Maybe someone else will chime in with some more good ideas

Post #471503 by MadDogMike on Fri, Jul 24, 2009 4:30 PM