i have had an idea for a while now and i was wondering if any of you guys could maybe save me a mess or some time. i work at ace hardware and to make different color paints we use glycerin based colorants. This is so the colorant will work in water and oil based paints. these colorants are extremely concentrated, and cheap (average of 15$ per quart)so i was wondering if i should experiment and see how it works in plastic.