Ultra® 2.1 VOC Matte Clearcoat 1100727 | Sherwin-Williams CURRENTLY SOLD OUT. Sherwin-Williams Finish 1 2.1 Clearcoat Hardener - Medium - FH742 (1 Quart). About this product. Product Identifiers Quart kit = 1 quart FC740 & 1 half pint FH742 Hardener Finish 1 hardeners are available in fast, medium and slow temperature ranges for use in Finish 1 ultimate spot/panel clear coat, overall clear coat, sealers, and 3.5 VOC acrylic enamel factory packaged colors Automotive Clear Coat Acme Sherwin-Williams Finish 1 Ultimate VOC Spot/Panel Sherwin Williams Paint 1 quart., Mix 4:1 , Made in the USA