Highwaterjane

Hi, I'm no scientist. I'm here because I think someone reading this can help me with a problem I would like to resolve.
I restore pottery and porcelain art and antiques. The method I use involves airbrushing small amounts of two-part epoxy paint to cover the repairs. Measuring out the two parts of epoxy (1:1 by volume or 3:1 by weight) is a slow and messy process and I am looking for a better method.

Currently, I use the weight method and two eye droppers but the thick viscosity of the epoxy make measuring and mixing a slow and sticky job.  There must be a cleaner, more efficient way to measure and mix these small (+/- 1/2 ounce) amounts.  Any suggestions?