Coarse compound for first-stage, rough-cut preparation. Removes visible scratches, pitting, rust and debris from iron, steel (including stainless) and softer metals like copper, brass and aluminium. For best results use with sisal buffing wheels to enable a powerful cutting action. Supplied in a 500g block for fuss-free application and simple storage. Apply little-and-often during use for best results. Coarse compound for first-stage, rough-cut preparation. Removes visible scratches, pitting, rust and debris from iron, steel (including stainless) and softer metals like copper, brass and aluminium. For best results use with sisal buffing wheels to enable a powerful cutting action. Supplied in a 500g block for fuss-free application and simple storage. Apply little-and-often during use for best results.