As food coloring is water-based, I'd wonder about it's compatability with epoxy. Sounds like it went off OK. I have seen color additives (WEST?) and all sorts of things used for color; graphite or toner, copper filings, different species of wood are just a few examples. If it were me, I'd try to stick with a dry powder that would mix in. I'd be a little hesitant to add water to epoxy. Sounds like a neat effect, fillets and exterior color coordinated!

> As i was doing the interior of my newest boat, I thought what if for the
> exposed epoxy fillets i added some color? So i did... 1. measured amount
> of epoxy, then mixed it. 2. added microballons and mixed again, when the
> epoxy was almost where i wanted i added some food coloring, then mixed
> until desired thickness. once i applied the fillets (in the cockpit) with
> the color blue added to my mixture it looked great. Has anyone done this?
> or does anyone know why i should not have done it? The fillets are cured
> and seem to be just as strong as any other i've done,they look very good
> and now i can coordinate the primary color of my boat with the exposed
> fillets.

> -Johnnie