The High Temp Epoxy has a recommend cure cycle of 24hours at ambient temperature followed by a stepped post-cure cycle as follows to achieve the high temperature properties: 1 hr @ 40'C, 1 hr @ 60'C, 1 hr @ 80'C, 1 hr @ 100'C, 1hr @1 hr @ 120'C and then 2 hours at 140 and 160'c respectively . As such, you'll need a mould tool capable of taking extended periods of time at these higher temperatures.