RE: How to color Epoxy
Colmo,
I use gel coat pigment. This can be purchased at most autobody supply stores for about $5 a tube. It is like a pigmented cream in a tube. You don't need much to get an entire batch of resin or epoxy to take on its color. If you have trouble getting some, send me a PM and I will send you a tube of black pigment. Other colors are available so you can mix a little of this with a little of that until you get the right color then add a dab into your resin or epoxy. I hope this helps.
Hec.