How do you polish stainless steel to a mirror finish? Professor Piet keeps the stainless steel cool to regulate the compound load on the airway buffing wheel by using Renegade Products Triple Threat Clay Lube & Instant Detailer. Spray as needed on the surface of the Stainless Steel as you are Polishing and it will help cool the stainless and lubricate the compound. The Professor is using Black Magic with our stiff red mill treated airway buffing wheel for his initial cut and then the semi stiff