This compound is designed for body shop use. It is a fast cutting compound and designed to save you time and money. It cuts quickly without using petroleum products and without generating excessive heat. This is part one of two that will get you to true paint correction. First use our 3D AAT 501 CUTTING COMPOUND, the only one on the market with adaptive abrasive technology the fastest cutting compound available today. Follow it up with AAT FINISHING POLISH – part two of two. This product works by resurfacing clear coat or evening the clear again, not moving the paint around. You can also follow 501 Cutting Compound with 505 for a protective finish.