The apparent surface was polished brass, the actual surface was water based clear coating. The following is a brief explanation of some of the most common materials that are powder coated today. A silvery metallic chemical element. It is remarkable for lightness, malleability, and resistance to oxidation. 1220 degrees F. Pretreatment recommendations for maximum corrosion resistance is chem-film or chromate conversion coating.
Aluminum heats up quicker than steel in a standard convection oven.
This may allow cure process of the powder to happen in less time resulting in higher line speeds for high production applications. Aluminum in its molten state is poured into a form and allowed to solidify and form the desired part configuration. Pretreatment recommendations are the same as above. Special care in processing may be necessary if the casting material has trapped contaminants or air pockets. Die casting is generally done under pressure, whereas, a sand casting is simply poured into the compressed sand impression mold as is.