I've been making polymer clay jewelry for some time, as well as casting small and simple resin pieces, and it occurred to me that it would be nice to make custom molds of my polymer clay work so I could have unique resin pieces (rather than using the same molds everyone else can go out and buy). This leaves me with some dilemmas: how to make plenty of quality molds, and how to add the colored details.
First question, mold making:
I have seen two part mold builders for making a flexible mold, but I want to be able to make multiple cavities (so I can cast several pieces at once and not have to fiddle with multiple molds) and I have heard mold building latex leaves an inferior finish at times (not glossy like a commercial mold).
Has anyone tried vacuum forming molds? Know of any other techniques? Is a two part mold builder a good option, or would that yield a poor result for this technique?
I didn't make this piece, but this is a good example of what I have in mind:
Second question, adding color details:
Okay, I know you can color resin and layer colors, but what would be the best method for adding more detailed color changes? Would I be able to use enamel paints or another paint product to add details after the resin has fully cured, or would it peel (the way paint peels from plastics...even that silly spray paint made for plastic!)
Is it possible to brush colored resin into the mold (in detail areas) and pour in a colored background?
(Also, I am sorry if there is an answer in the general questions about resin thread, I couldn't find an answer searching and the thread is too long to read in its entirety)
Again, this isn't my work, but represent what I am going for...some details seem to be colored resin and others seem painted?