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Today's work (actually on 1 December) was to have a second go at slaking plaster with the 30 min method to make real gesso.
I've spent the past hour stirring, pouring off, watering and stirring some more. I *think* I've reached Ph neutral, but the litmus strip is hard to confirm in artificial light. So I've poured the plaster sludge into two plastic containers, and will leave it overnight.
If it settles I can double-check the Ph, then let it dry.
If it hardens into plaster - I guess I have two big flat chunks of plaster to carve.
I've spent the past hour stirring, pouring off, watering and stirring some more. I *think* I've reached Ph neutral, but the litmus strip is hard to confirm in artificial light. So I've poured the plaster sludge into two plastic containers, and will leave it overnight.
If it settles I can double-check the Ph, then let it dry.
If it hardens into plaster - I guess I have two big flat chunks of plaster to carve.