Compressor/Airbrush troubles

[Guest]

You are spot on Steve it does splutter and yes bubbles do appear in the cup. Usually I can resolve my issues with this sort of thing but this has me stumped. Or it could be I am not seeing what is in front of my eyes.

Thanks for yours and every ones time with this it is much appreciated.

[stona]

I'm even more convinced it is the airbrush(es). The first thing to check is that the nozzle and nozzle cap are both tight and sealed.

Steve

[Guest]

If this happened to me, and it has, I would have a look at the nozzles. If it is spluttering in the cup then the air cannot get through the nozzle area some where and is backing up through the paint in the cup. Perhaps sometimes the paint finds a way through the partially blocked nozzle and then it re-blocks again. Have you tried putting cleaner through the brushes. If it will not go then this is I would guess again at the nozzles.

Clean them then sight through against a bright light to see that there is a good clear orifice.

Be interested to see what needle/nozzle you are using Terry. Vallejo advice .35 or .4. I have a H & S with .4 and an Iwata with .35. The only problem I have had is due to poor cleaning. Vallejo has worked perfectly for me and never had to use a retarder and that is in Jersey which is considerably warmer than the UK.

Is the room you are in Terry hot does it face the sunside ? Also where are the paints stored ? They should be kept in the cool.

Laurie

[stona]

These are double action internal mix brushes?

Steve

[Guest]

Vallejo has worked perfectly for me and never had to use a retarder and that is in Jersey which is considerably warmer than the UKLaurie

Funny how London topped 26° yesterday & Jersey was 19° hmm

[Guest]

Maybe you should thoroughly clean your AB and then spray at a slightly higher pressure with a more thinned paint mix. This happened to me, so I thinned it more and it worked very well.

John

[Ian M]

find a magnifying glass and take a good look at the nozzle, both inside and out and at the tip of the needle.

Give the nozzle a good soak in cleaner and if you have a paint brush with long enough hairs, poke it in and twist it around. Pleanty of cleaner and a genle hand.

Check that the nozzel is not split.

The very tip of the needle is easy to knock and can get a bur or hook on the end. These will catch paint like a bucket and will quickly clog Things up.

If the nozzle is cracked only a new one will solve that. If the needle is damaged, a very fine wet and dry paper can solve that.

Ian M

[Guest]

Thanks to all for your help I have an old A/B needle that has a minor kink at the tip so acts like a feeler when inserted carefully in the nozzle.

low and behold it was like going over speed bumps when I inserted it in to the first nozzle. Morale of the story don't try cleaning when you only have one good eye and wear glasses. After a prod around and a soak in cleaner I am back up and running again. Once again thanks to all who gave advise much appreciated.

[stona]

Glad that you are up and running again!

Those little interdental brushes are good for cleaning nozzles. Give the part a good soak in cellulose thinners and then clean it with the brush, also moistened with thinners.

Cheers

Steve

[Guest]

Funny enough Steve I usually do that don't know what part of my usual clean down I didn't do ah well at least I am back on track Thanks again.

[Guest]

Well done Terry up and running again.

I would say that 90% of problems I have had with airbrushes comes from blocked nozzles.

Laurie

[Guest]

I can usually sort it Laurie but this time just couldn't work out what I had done wrong. Or what was going wrong for that matter. I usually work through things logically but logic escaped me on this occasion.