The Fiberglass Hawaii Epoxy resin says 5 days to complete cure/ For ding repairs is that mch time really needed?
For dingrepair its not that important , curetime is always connected to room temperatures . You can always speed up the process by moderatly heating the repaired area after its hardened. ( Curing)
Be aware when sanding that not fully cured epoxies are harmful.
Dont add more hardener. Sounds probably weird, but ive seen people do that more than once .
5 days at room temps. But you can do a post cure in a day. A cheapo way to do it is to build a little solar oven using a blue tarp and your shaping stands out in the sun; add a small desk fan to circulate the air.. Make an enclosed tent and stick the board in on a couple blocks so the warned air can get to it. You want to monitor the interior temperatures because on a warm sunny day that oven can get to 140* pretty quickly and you don't want to let the temps get out of hand. . Depending on the hardener you're using a couple hours @ *140*-160* will be sufficient.
Go for heat but not too high eps core expand and without vent it can be a drama...
For structural repair resin need to be cured. For small dings even it's better, it's not so important. I have guys that take boards with soft resin repair and come back after surf for sanding.