How do you polish a pontoon? This particular case involved sanding the Aluminium tubes with a 600 grit sanding disc. The first stage of cutting involves the use of an orange airway buffing wheel that is paired with renegade products T88 Tripoli metal polishing compound to remove the underlying sanding disc lines. The secondary metal finishing process involves the use of a yellow airway buffing wheel that is paired with renegade products G16 green chrome rouge metal finishing compound to achieve