Probably but I can't recall anyone specifically. Note that powder coatings are a fairly thick thermoplastic coating that fuses at 300-400F. I wouldn't try driving a Pantera hard with a low-temp powder coating on brake calipers, both because the high heat from such an attempt may discolor the coating, and because the thick coating may tend to insulate calipers and cause the brakes to heat-fade. There are higher-melting powder-coatings available- in Aerospace, we used one that fused at 400F. A specialist in the process would know; I would ask specifically about brake calipers.
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