This product optimizes your time and conserves your polish by ensuring the polish adheres to the wheel rather than dispersing onto walls or floors. It eliminates the hassle associated with loading polishing wheels. Greaseless polishes adhere effortlessly to your wheel following a single application of this remarkable product. Brownells Wheel Prep is a dark-blue sizing compound applied after the wheel is trued but prior to the application of greaseless polish. It immediately conditions and prepares the wheel to absorb the maximum amount of polish in a single application. It is compatible with all types of wheels, exclusively for use with greaseless polishes. It is not suitable for use with Brownells 555 or other grease/tallow-based polishes.