I wrote a post a few weeks ago about my tests with masking glazes in raku firings and have been continuing with these as well as trying to introduce some colour in to my work. I’d read somewhere that you can use just about any glaze for raku firing, so I started off with some of my earthenware glazes. I glazed, fired and cooled them and eagerly scrubbed the muck off them to see what wonders I’d created… they all looked dreadful! Different colours seemed to work at different temperatures, although they all fire together in a standard earthenware glaze firing. There is no sense to ceramic work sometimes!
So undeterred, I decided to try another approach. Using underglazes. These are by Chrysanthos and fire to a matt finish. The colours are stable from cone 06 to cone 6, so have a wide range with good consistency. I had an idea that I might be able to use these for the colour and cover them with a clear crackle varnish which would make them glossy, and more importantly produce a uniform finish that could be controlled with mixed firings.
As the wax is waterproof you can paint right over the top of it with your glazes which will be repelled, (good if you're a messy painter like me!) but as the wax burns away, you will still be left with a nice dark line from the underglaze after firing and the same recess and edge between the glazes.
The whole thing was given a coat of clear crackle glaze.
My favourite of the batch...
I also decided to have a try at colouring one of my new design of figures… Mr Fox.
Enjoy the rest of your day!