Heavy Duty Compound is designed for medium to heavy oxidized surfaces. Will prepare the surface for sealing or waxing. Contains no wax. Exceptional features: Doesn’t load buffer- heavy duty - low powder - no wax - super fast cutting - will not scratch - easy by hand (can be used by hand for small areas, than use wax applicator). Heavy Duty Compound is a moderately aggressive compound formulated to meet the needs of vehicle restorations.