Primer Problem

This is the first time Ive painted a car with pro paint and Iam having problems with the primer. I painted the primer on with my gravity feed spray gun and when i was done i took of the cap to clean it out with paint thinner and after i put all the thinner thru the gun it didnt work. A thin layer of primer was left on the walls for the cup and little chunks of it were sitting at the bottom of the cup, thankfully the gun has a filter. I had u clean it with the Urethane Activator. I used Nason 421-19 2K Urethane Primer and mixed it with the 483-87 Activator, in a room around 70 degrees. Could it of been that i didnt put enough of the activator in it or to much? Thanks

you should ask in the "detailing" section

sorry, i couldn't be of more help

i had that happen the first time i tried to use this wierd type of primer called epoxy... it was because i had never painted a car before, so i tried to mix the paint in the cup on the gun lol!!! it turned all globby and stuff and it took over an hour to clean out the gun