NC-322 Heavy Restoration Compound is our most aggressive liquid compound for maximum cut. It is best used with wool pads which are capable of retaining coarser particles. Foam pads will offer slightly lighter cut a brighter more even finish. NC-322 is most effective on the paints & acrylic. It is a softer diminishing abrasive that is optimised for typical painting situations. For Gelcoat use NC-324 Rapid Gelcoat Compound. It is silicone free for paint shop compatibility and washes clean with water. It’s clean formulation also leaves as little dust as possible, reducing clean-up time.