Discussion in 'Airbrush' started by Dellboy, Nov 4, 2011.
On the average brush remove the back end & there is a screw which tightens the needle to the trigger assembly. Unless they work as one the needle will not move back allowing the air to pull through the paint.
If paint did come out originally then this narrows the field & probably? is paint which has dried.
Can you take the brush apart in any way ? What paint are you using enamel or Acrylic as this affects how to go about unclogging ?
See that the brush is a bottom feed form a bottle. I would just check to see that you have a good airtight fix on the connections here. Also that the nozzle is finger tight.
Also take a good look through the instruction manual to see how much apart it comes & then clean all of those parts. Fill the bottle with air cleaner or thinners of what ever paint you are using & give it a good blast through.
Another thought had you used so much compressed air that there was not enough pressure to bring in the paint.
Another for future use thin the paint as even those paints specifically manufactured for use with an airbrush are thinned by most of the members of this forum.
Running out of ideas but all these worth a try.
My recommendation is get rid and buy a cheap double action ab and mini compressor set from ebay, (about £60).
A da is much more controllable.
However, to persevere, check the following.
Air coming out of the top pipe blowing forward.
The upright nozzle must be screwed down so that, (looking from the side), the flat tip is inline with or below the air output hole. If it is above the air cannot pass the top creating an area of low pressure and therefore a vacuum which draws the paint up the emulsion tube.
Check all seals are present, jar to brush, hose to brush and propellant etc
Check the emulsion tube and nozzle are clear.
Check it's not fouling the bottom of the paint jar.
Check that the paint is thinned appropriately, it needs to be a milky consistency, so it sticks to the side of the jar if swirled but only a thin coat, you shouldn't need much air to get the paint to flow.
If the above are ok it should work.
I know some or most have been mentioned in previous replies but having started with a sa brush myself was hoping to get everything step by step for you. I may do a quick video with my old badger sa for youtube to cover this as a few have asked on here.
airbrushes really are a false economy, very frustrating and waste a lot of paint. I'd take the advice above and get something decent, it'll most likely be a revellation
iwata revolution range or even one of the new Neon AB`s and a compressor will give trouble free modelling in the long run and save you a fortune in air cans , when people ask about air cannisters 99% of forum members always advise to give them a miss , 2 reasons - you have no control over the pressure and you can bet your last pound note it will run out halfway through spraying a model ,
With christmas around the corner it maybe worth contacting John to see what sort of package he can do.
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