Use of epoxy for levelling

[Rich]

From experience I know my elevated cure resin will harden in cold well, just add time. Excluding the 205 hardener, a workable cure should be achieved within 2.5 days (72oF cure is 15 hours max, 67oF equates to 30 hours, 62oF should be 60 hours). They quote 'thin film'. It tends to be 1mm or so. Thicker films, shorter time periods. I guess you must have been unlucky, or the hardener is getting old.

Matthewb,
I agree, polyurethane has potential with some additional benefits, including vibration dampening. I had a quick look at the website you posted. There were some reasonable numbers, attractive numbers on shrinkage, however, they tend to require elevated post cure. Quite expensive in my opinion. Have you thought of looking to the industrial floor coating industry - they might entertain a few free samples. Help you get your eye in before you pour.

Just noticed this website: http://www.resins-online.com/ I'd contact the underlying manufacturer for clarifications.