Quoted Text
Firstly thank you for your feedback Karl. Out of interest what is your cleaning regime and with what paint type. Having used this brush a few times now without incident I would assume the area that is most at risk of paint build up is the cone behind the head of the brush? I will add that I bought an ultrasonic cleaner for my airbrushes and so cleaning holds no fears for me anymore.
Yeah, I bought one of those ultra-sonic cleaners too- I never use it now! I clean my AB's using Mr. Hobby thinners, cotton buds, and a set of fine bristled cleaning brushes I got from the Airbrush Company. I mostly use Tamiya paint in the Krome and I always find the paint builds up were you said, behind the nozzle assembly on the needle. This builds up no matter what thinners I use to clean the brush- you'll now its dirty because, at least in my experience, the trigger action will be 'sticky' and not smooth.
Usually just a clean of the needle and a squirt of Mr. Hobby thinner's through the forward end of the AB is enough to sort things but usually after about two painting sessions I'll break it down- nozzle, tip, needle etc and give it all a nice clean. I also break down the rear of the AB from time to time aswell and give that a good clean- its very simple really- just take the needle out and unscrew the needle clamp and lift the trigger out- follow the instructions breakdown really.
This probably sounds like a lot of work but it usually only takes about 5-10 minutes!