Fast Hardener: is suitable for panel and spot repairs. It is ideal for use with all 2K primers and clearcoats. The fast hardener is stable and cures rapidly. It is well-suited for single panel work
It is essential to use this hardener at specific ratios as prescribed. S2030, S2032, and S2033 must be mixed at 3:1, 4:1 or 5:1 when used with primers. For use with clearcoats, they must be mixed at 2:1, 3:1 or 4:1 ratio. Mix them with solid colors in the ratio of 2:1. System 20 hardeners cannot be used on their own and should always be mixed with a U-Pol clearcoat, solid color, or primer. These 2K isocyanate hardeners have a shelf life of 9 months in unopened containers. Lids must be replaced after each use..