This is the most frequently question asked and rightfully so!! Unfortunately there's no standard calculation when mixing flakes due to the numerous applications, and mediums that our flakes can be used with. I.E. Automotive, Epoxy, Fishing Lures, Woodworking, Pen Blanks, Acrylic, Varnish, Clay, Grout, Flooring, Countertops, Cosmetics, Fingernail Polish, etc. the list goes on.
Automotive
Do NOT recommend for automotive use due to size and longevity.
Epoxy / Resin
These can be used in epoxy resin deep pours BUT, PLEASE understand that due to the density of the flake, it will most likely sink in a fresh pour.
These flakes are great for using as accents on smaller pours or projects.