I am fairly familiar with cold casting using urethane and epoxy resins, and have read through the many posts here that address various techniques. It appears that there is consensus that dusting the mold with metal powder is a best practice, and at least one member advocates the uses of powders in the 1200 mesh range. Unfortunately, I have not found an easy way to get this ultra fine powder from a US supplier to test this approach. I have also found that is easy to buff through the thin layer that is created by the dusting technique and no matter how how much metal is incorporated in the back fill it doesn't match. My question, finally, is this.......... Has anybody found a way to increase the thickness of the dusting layer to increase durability? I have considered mixing it with solvent so that it can be airbrushed, or painting it on with epoxy that has been thinned with solvent. Any suggestions are greatly appreciated!