Mathius wrote:I never found anything that definitely worked, but there was a guy on TFW2005 that dyed a figure white. He said he used automotive grade vinyl/leather dye and that it worked. I seem to have deleted the PM he sent me so I have no details, but I know the auto grade white dye is getting harder to find. IIRC he just sprayed it, he didn't use the boil method.
I'd try it on a figure you don't care about first and be conscious of the different types of plastics used.