Automatic mixing and metering. Longer work time than 3M™ Automix™ SMC/Fiberglass Repair Adhesive, part number 08243. Work time is 4 minutes. Handling time is 30 minutes. Cure time is 2 hours. There are two recommended applicator guns. They are the MixPac® Manual Applicator 08117 or the MixPac® Pneumatic Applicator 09930.