First of all, I need a slap. I used chipping medium for the first time yesterday, ran some air brush cleaner through it....but didn't do it as much as I should. Came back the next day, the nozzle is completely plugged up. Can't even get a needle through it. I used Vallejo chipping medium I have an iwata eclipse 0.3 mm Have taken off the nozzle, soaked it in white spirit for an hour, tried to use an old needle to try and get the hardened chipping medium out....but it is stuck. So...new nozzle? Or is there an easy way to 'dissolve' chipping medium?