Extra Solids High Temp Activator Extra Solids Acrylic Urethane Clearcoat Activators are specifically designed for high productivity shops using Transtar Finish-Tec Clearcoats. Activators are suitable for use in clearcoat applications over single stage topcoats and for base/clear applications (except lacquers). #6894HT/6897HT, Hi Temp Activator is designed for use on larger jobs in temperatures above 90°F (32 °F).. Easy 2:1 mix ratio. 2 coat application. Dust free in as little as 15 minutes. Apply, polish and deliver same day - air dry or bake!. Easy to apply, very user friendly. Excellent flow, leveling and vertical stability. Outstanding gloss and depth of appearance 6894HT Yes -