Exactally Ger
The larger the mass the harder it is for the heat to escape.E/G the thicker the mass the more rapid the cure and heat generation.The pot or mix container will harden rapidly because of mass or volume.Thick castings heavily filled should not have excessive exotherm while unfilled raw epoxy could "smoke"in the pot if left to long.Lets "stick "with slow curing rates.
Pot life is the max mix time for a large mass of material.Once poured to a thinner cross section the cure time may be "boring"or quite a long time.Donot watch the epoxy too closely as it will slow the cure.{if you watch the kettle the water will not boil}Famous quote from my mother.
Larry