Just wondering if this might be worth experimenting with.
http://www.ebay.co.uk/itm/SP300-EPOS...item43cfc05850
It's almost like water so could contain a lot of solvent,but might be worth a try, i use it for sealing wood patterns and it takes about a day for any remnants in the mixing container to set solid, how does it compare price wise with the West Epoxy.