In fact when i mixed and poured the West System just 2 days ago, outside was around 19C. When i mixed it, for a second was a bit worried about the quantity i mix, but nothing happened. No heat at all.

Epoxy also suffers from humidity, i know this, as i live at 90% humidity near the sea.. So most epoxies i have used before/marine grade usually/ dried with a kind of mattish surface.

In the pdf says that the WS has no problem in high humidity working area.