McKee's 37 coating prep polish is a non-abrasive chemical polish that deep cleans automotive paint, ridding it of below-surface contaminants that will prevent a coating, paint sealant or wax from properly bonding. Formulated without any silicones, waxes, sealants, polymers or fillers, McKee's 37 coating prep polish leaves nothing on the surface, making it the ideal polish to use before applying any product that requires a 100% oil and wax free surface.