Adriatic posted:I've never gotten a HF brush or gun who's seals didn't melt with lacquer thinner. They don't (didn't) use nitril rubber o-rings & seals. Cheap rubber seals will dissolve, harden or shrink. Replace those and they are usually decent tools.
Really, if you get a chepie the chance it works sub par could be discouraging as well. It took a few times before I finally got to use a brush I liked, an automatic (trigger opens air first, then paint flow is opened by more pull on the same trigger, then further pulling increases paint flow)
Nitrile aka Buna N has a low resistance to solvents like lacquer thinner or MEK. The preferred material here is Viton. The Harbor Freight single action airbrush is pretty much an exact copy of the Paasche model H. Plastic handle and metal spray parts. The parts may actually be interchangeable though I have not tried. Don said his original application was for scenery. Seems to me the paint of choice here is cheap craft store acrylics which the HF model is more than capable of handling without self destruction.
Pete
