Think I have an adapter on the way that will connect the airbrush to a PCL type airline fitting. I have been brush painting some small internal parts with the paint that came with the kit, not sure but think it is acrylic and the green and black went on OK but tried some silver and it is odd, behaves a bit like mercury or something, won't stay in a film, tried washing it off and giving parts a good wash in soapy water but no difference, even a rub with a fine scotch pad does not stop it completely, does the paint need to go in the bin?