Fast firings and kiln wash

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Stephen Richard

So you are firing very fast and very high.  I have missed what glass you are firing but 1800F is -by my conversion – about 180C [324F] higher than needed for all except float.  No [blank, blank] wonder your kiln wash is sticking.  I don’t know of any kiln wash that would stand up to these temperatures. Generally, the ceramic batt washes are a bit coarser than that made for glass, but are essentially the same composition otherwise.

I wonder what your glass is looking like. A puddle, I guess.  :-)

Look at the Bullseye site technote 4

This will tellyou a lot about how glass reacts to heat.  Also look at the tutorials on this site for information on firing.

Stephen Richard

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