This is a bit off topic (hope no one minds) but I'm having a problem applying dry paint pigments and wondered if anyone might be able to help?
I want to apply dry paint pigments (and eyeshadow) to plaster, but want to keep it looking powder-y, I planned to use PVA, sprinkle over the pigments and seal it with gloss varnish, so I had a powder-y glossy effect. I went to a painting specialist shop and he told me 'forget it' and said it won't work. Sold me a resoluable binder and said that this would bind the pigments so they stuck, whilst keeping the powder-y effect.
It doesn't have this effect at all, it makes a thick paste with the pigments and dries looking like hardened mud
which was not what I wanted at all. He won't refund me and now I've lost 40 quid! Still none the wiser though.
The only other idea I have had is to mix the different coloured pigment in with the paster and make small grains with the plaster (looking like lumps of pigment) which I could then (hopefully) glue on with PVA and varnish with another coat of PVA. I'm not sure about this either though, think it would be easy on a flat surface but a lot trickier on a sculpture
I just wondered if anyone has come across this problem and knows any solutions?!