Talking to one of the ladies in my office after she saw a turning using the Jo Sonja Iridescent paints. She said she used 'Interference Paints' in her craftwork.
Interested I asked for more details, and guess what, Jo Sonja are not the only paint manufacturer to make paint with Mica in it. A company called DecoArt make them as well.
Exploring the DecoArt page for their acrylic paint range (see link below), there was a link to their Technical Specs sheet and I saw that their Interference Paints are Mica based as well.
She was kind enough to bring in a bottle for me to look at. They work the same following a quick test (smeared over a black marker scribble) but the fluid is a little thinner, but as they are normally thinned a little to use them, I don't see this as being a problem.
Unlike Jo Sonja they are more widely available, She tells me she buys them from a well known Hobby Shop chain. And they are available in the same 6 colours.
http://decoart.com/mixedmedia/fluid-acrylics - Scan down to the Interference range.
