Hey Josh:
I don't know why anyone is jumping on you about rims. I have done a ton of rims in all sorts of substrates... including alum & alloy's. The curing temps of 400F will not cause any damage to the rims.
Outgassing is another issue.
I outgass casted items only. To outgass, I prebake the casted item about 25F - 50F degrees higher & 20 minutes longer than the recomended cure schedule of the powder I am using. I do warn my customers that "Although I prebake to prevent & limit outgassing. It is not always 100% effective. And that I cannot be held responsible for additional outgassing"
So powder away!
Good Luck
Bob
