I'm trying to reproduce a small sculpture with resin. I want to make the surface look like marble.
The company where I buy my resin gave me Polymer Resin 31-832, Cobalt powder (since they didn't have any Marble dust), Cobalt Accelerator, and Polymer MEKP Hardener.
The problem is when I mix the hardener and resin (pre-mixed with Cobalt powder) everything starts to discolor - it turns into a muddy green color. I was opting for a beige-grey color for my sculpture.
Something like this: http://bewitching.tumblr.com/post/6073577708
So what can I do or add to color my resin properly?
I've already tried mixing only resin, cobalt and the accelerator but it doesn't cure at all. Nor mixing only resin and the MEKP hardener.