Powder coat is my vote, that is, for your application.
1. Powder coat is tough and very durable
2. Just like paint.., prep is everything.
3. When sprayed, the powder coating does not like sharp edges so please smooth them.
4. At my local powder coat shop, we:
A. Clean and clean again.
B. Power wash with detergent after we hang it.
C. Phosphate wash for max adhesion.
D. Install thermocouples and place in oven.
E. Heat the part to desired temp as referenced by thermocouples because as you know, oven temp is not part temp.
F. Monitor temps to ensure proper part "bake time" while still bare.
G. Remove and let cool, inspect surface for contaminants
H. Spray powder, cook, and let cool fully before handling.
5. Funny thing, I insisted on paint for my BBC aluminum valve covers so we powder coated them first as a "primer", then block sanded and painted the powder coat. Turned out nice.
6. My two cents..,
|