Cooksongold customer Juliet reviews Luxi Polishing Compounds in purple (997 438) and green (997 436). Luxi purple and green are low-speed compounds composed of an alumina oxide abrasive in a water-soluble binder, and silica-free. All Luxi are water-based, animal fat-free polishing compounds. Juliet reviewed the Luxi Low Speed Polishing Compounds as part of Cooksongolds Video Review Team.