Multifunction compound for both first-stage preparation (soft metals) and final polishing (hard metals). Removes visible scratches, pitting, rust and debris from copper, brass and aluminium, while leaving steel, stainless steel and iron with an aesthetically-pleasing finish. For best results use with sisal buffing wheels. Supplied in a 500g block for fuss-free application and simple storage. Apply little-and-often during use for best results.