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Marcia Selsor

Member Since 16 May 2010
Offline Last Active Yesterday, 08:37 PM

Posts I've Made

In Topic: Cobalt Carbonate

Yesterday, 03:13 PM

if it has melted into the glaze, there should be no problem. It should work as an underglaze and that would most definitely be food safe. If you get a thick stroke of cobalt carb. that has turned crusty on the surface , then I may be concerned..


In Topic: Glaze Chemical Containers - Help!

Yesterday, 01:38 PM

I have a lot of chemicals stored in 5 gallon buckets on homemade dollies. I have more common glaze ingredients in plastic drawers and oxides in coffee cans.





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In Topic: Pkqw: Week 18

25 July 2017 - 05:43 PM

1 Ruskin

2 Voulkos 

3 Plasticity

4 slip



In Topic: Firing Interruption And Continuation (Especially Terracotta)

25 July 2017 - 05:35 PM

Harriet Brisson wrote an article in 1981 Studio Potter "Firing with Solar Energy


If I remember correctly she wasn't into solar panels which had not yet been developed. Her idea was using 

concave reflectors focusing on the pieces,

In Topic: Re-Glazing - Firing Speed?

25 July 2017 - 12:49 PM

I'd go slower because the clay is vitrified at this point and more susceptible to cracking.