Gunmetal Grey Metallic - Slow Reducer, Hot Rod Flatz by Custom Shop Urethane Automotive Flat Matte Car Paint, 1 Quart Kit Save 20% to 70% on products that meet or exceed the performance of the more expensive name brands! Custom Shop's HOT ROD FLATZ is manufactured in the USA to the highest automotive industry standards! Complete Ready-To-Spray Kit All Custom Shop Paint Products are proudly manufactured in the U.S.A. to the highest automotive industry standards. Pre-flattened ready to spray low-gloss color with the desired 30-degree satin primer appearance