JB, powdercoating isn't like paint with regards to 'curing'. PC must be baked consistently at approximately 400º for the powder melt and flow for an even covering of the part. If you want a good site for powdercoating, check out Powder Buy The Pound
, at the home page find the 'Forum' button at the top right, LOTS of good info there. If that doesn't work find an Easy Bake Oven.