Hello, im struggling to get my head around the mix ratio for the eproxy resin. On the containers, it says 100 - 30, is this measured by weight, or quantity? 

Let's say I wanted to use a small amount of resin for example 5 KG in weight? How do I work out how much harder to use? 

I have made a mixture and it's been drying for 24 hours, however its still tacky, im assuming I have not used enough hardner? 

I have constructed a 'warming cabinet' out of Celotex (could use Kingspan or anything similar. The smallest oil filled radiator from Machine Mart with a thermostatic control works just fine in my unheated workshop. At UK current ambient temperatures nothing is going to cure. For smaller parts a cheap Dunelm electric blanket and an airing cupboard raided duvet works really well too. It is not difficult to keep the temperature in the mid 20's, don't go too high though as the PVC vac tube just collapses.

On the subject of weight versus volume, what are the densities of IN2 and hardener. I have been using accurate paint shop measuring beakers and they seem just fine. MEKP a catalyst and just activates resin as opposed to IN2 and hardener where both constituents react together to create a solid resin.


Retired - Thank heavens, and still don't have enough time during the day

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant