How do you mixomni 2k primer?

to thin 2k primer or primer fillers such as dupont 1040r a raitio of 5:1 is used ie: 500mls primer to 100mls activator, if the mixture needs to be thinned, first mix the primer and activator to above ratio then add thinners at 20mls of thinners per 100mls primer mix. eg: 500mls primer +100mls activator= 600mls, 6x20mls=120mils of thinners for 600mils primer mix.