Quote:
Originally Posted by U1timate PigDog
Actually not quite true Ian  the HP CS has a couple of small rubber seals but they dont wear much using waterbased paint |
Oh, okay, let me re-phrase what I said then. My now
very old HP-B Doesn't have any rubber seals apart from the ones in the air valve that you don't see. The nozzle on mine screws directly into the body, no seals, brilliant
I don't know what an HP CS is, mine is from a range where there was an HP-A, HP-B, HP-C and that was pretty much, I just looked on
airbrushes.com and realised there are about a million variants now
Looking at the illustrations on that site it seems the O ring is quite large and seats itself around the head cap, annotated as No. 8 in this illlustration
https://airbrushes.com/parts_info.php?products_id=3206 what I was getting at in my previous post was the DeVilbiss ones have the o-ring around the back of the nozzle, because of this any solvent gets to them where as the Iwata Nozzle screws in and therefore not having an o-ring means you won't perish these tiny little seals. Of course the easy way around all of this is if you do have O rings on the nozzle you can fit Teflon O rings and they won't perish with thinners.
I would like to mention airbrushes with a 'floating nozzle', (i.e. - those where the nozzle just seats itself on a rubber seal and doesn't screw in at all ) produce a finer atomisation than those like mine where the nozzle is screwed and fixed in place. Depending on how thin your paint can be this isn't too much of a problem, if your using water colour you won't notice, if you use inks it will show up slightly and stuff as thick as we use for these car bodies it will show up considerably more.