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Colored Resins!


I cannot confirm, but a Formlabs employee advised me that the photoinitiators are in the pigment, which is why a precise 100 mL of pigment should be added to the base. If correct, adding a non-Formlabs pigment would likely result in the resin not curing properly.

You may could start with the Formlabs pigments and then add something to that to reach the desired color. But if any experiments fail, then you’ve wasted a bunch of material/money.


It depends on the desired result color because different colors have different colorfastness in different pigment forms. Once you find a pigment that won’t bleach out in printing and postcuring you can add something like 3DResyns cure accelerator to make sure it prints.

I find that, even for dark colors, you want a certain amount of titanium dioxide pigment in the mix because it helps the resin cure by fluorescing on its own.