need airbrush help plz ::::::

[Guest]

Using thinners Moni. Put the thinners in the cup first and mix with a brush in the cup. Spray a test to get rid of any unmixed thinners. Also make sure you do not leave the airbrush standing. Best to get the work done as soon as possible to obviate the displeasure of blockages.

Laurie

[monica]

well i just ordered air thinner and gray primer, so maybe that will help

but can i still use the vallejo german red/brown surface primer 73.605 with the right thinners ?

ta all

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[Guest]

That grey primer is a strange one as it is really just grey Vallejo Model Air paint. They tell that tale on their Web site.

It was replaced by their resin primer range but they still retain it in the Air range and now call it base grey.

Yes you are OK Moni near all Vallejo products use the same thinners.

Laurie

[monica]

hi Laurie, thank you for that oh boo,ops: they got me but no problem, as i can add black to it to darken it up and its still useful,

think as yourshelf and Ian said useing the wrong thinners did not help so i should get all this within the next day ,so have a take 2

and should get better results with it

cheers

[Guest]

I, as others have said, use 20 PSI. I use 60ml Grey Acrylic Primer 73.601 - Vallejo. I do not add thinner. To clean the airbrush properly you need Vallejo Airbrush Cleaner (it is water-based). Remove the needle (carefully) and wipe it clean with a wet paper soaked in the cleaner. [COLOR=rgb(0,0,0)]Remove the nozzle and its aircap and put into a container with the cleaner for 10 minutes. Clean the part of the airbrush body under the colour cup. Use one of those tiny bottle brushes sold for airbrushes, soaked in cleaner, to clean out the passage between the front of the airbrush towards the trigger. Do this several times with fresh cleaner until the brush shows no colour. Use an inter- dental probe (from chemists) soaked in cleaner to brush out the nozzle (carefully). Clean the aircap. Inspect for everything being clean. Re-assemble.[/COLOR]

[COLOR=rgb(0,0,0)]I do all this after every airbrushing session and now hardly have any problems.[/COLOR]

[COLOR=rgb(0,0,0)]I don't understand "[/COLOR][COLOR=rgb(0,0,0)]the screw under the bottom below [/COLOR][COLOR=rgb(0,0,0)]the cup".[/COLOR][COLOR=rgb(0,0,0)] My AB does not have any adjustment like that.[/COLOR]

[COLOR=rgb(0,0,0)]You said "the paint was boiling up in the cup as well". I had that recently and on advice I changed the O-ring on the aircap, which solved the problem. (I was surprised because my AB is quite new. Perhaps I was over-tightrening the nozzle aircap.) But perhaps your higher air pressure might have caused that.[/COLOR]

[COLOR=rgb(0,0,0)]You said "[/COLOR][COLOR=rgb(0,0,0)]i was getting like big droplets or spots of diffidence sizes, as not all the[/COLOR]

[COLOR=rgb(0,0,0)][/COLOR][COLOR=rgb(0,0,0)]time but alot off it".[/COLOR][COLOR=rgb(0,0,0)][/COLOR][COLOR=rgb(0,0,0)]I got this at first, and still get it now and then. I don't know why. To minimise it, after more than 3 minutes of spraying I clean the end of the AB by wiping with a paper towel (or a brush) soaked in cleaner (to prevent a build-up of paint). Be careful of the point of the needle. Also, it seems that some droplets can be formed when the flow starts and stops. Therefore, I start the spray away from the model and then move the AB over it. I keep the flow going always while the AB is painting over the part. When I have finished painting the part, I keep the flow going and move the AB away from the model, and only then do I stop the flow.[/COLOR]

[COLOR=rgb(0,0,0)][/COLOR]

[eddiesolo]

I think Steve has hit on a good point there, making sure that everything is really clean. I thought my AB was clean having done a complete strip down and clean only to find that the nozzle still had some paint in it albeit only small-hence I missed it, so check, clean and check again...and clean again if need be.

Si

[eddiesolo]

I was just wondering if the screw at the bottom is for fitting a bottom reservoir cup-syphoned with a choice of syphoned or gravity fed?

Si

[Guest]

I think Steve has hit on a good point there, making sure that everything is really clean. I thought my AB was clean having done a complete strip down and clean only to find that the nozzle still had some paint in it albeit only small-hence I missed it, so check, clean and check again...and clean again if need be.Si

Right on! I forgot to mention that it is a good idea to look down the nozzle (in the direction of paint flow) against a bright light (sky is good) and with a magnifying glass. Focus clearly. It helps to blow or suck the nozzle to remove fluid. Roll the nozzle between the fingers and if anything can be seen moving round inside with the rolling, it is dirt or something which needs removing.

Do this while holding it well over your work table. If you drop it you might find it again, but not if the Carpet Monster has got it! Nozzles are expensive.

[yak face]

Monica , the screw under the cup is an air pressure adjuster. Screw it up and the air reaching the nozzle goes down , screw it down and it goes up . be careful when screwing it down though as it will come right out in your hand . Its just a case of giving the brush a good clean ,then having a play around . Personally I spray at around 30 to 35 psi with acrylics , its just a matter of finding what works for you. Get a cheap A3 paper pad and just play around with the brush trying all different settings , the beauty of this is youve got about 100 pages of white paper so always test on this before you start spraying the model (I have one hung on the wall next to my extractor booth ) hopefully it will show any problems such as spattering , too thin , too thick etc. In all cases where Ive had the spattering its always been a partially blocked nozzle so if I were you thats where I'd start, cheers tony

[monica]

sorry for late reply busy day

hi Steve,thank you, it is only a new AB that come with the compressor i will , look again and do another clean and take on board what you have said

,when i did change the needle the lever guide did drop out ,oops so i put it back in thinking it is the right way around, as it dose have a curve on each end

but dont think it would real matter beening around the wrong way ? as the needle moves find when pulling the trigger

i did find that with the needle cap that was on it was so hard to undo it broke the o-ring, the one thing im a little confused about is the PSI ?

,should i try at 20 1st and see how i go ? with the right thinners and do as said ops:

or do I try it set to 25 ? as Steve has said

or do i try your way and have it set higher ?

hi Tony thank you as well , yes that screw i messed with when i was getting the spattering , which maybe i should not off touch oops, again,

and maybe im right in saying that using the wrong thinners gave me most off the problems ? as i did find that the paint was building up on the tip and was drying

as i read that the air thinners has a bit off a slower drying time maybe that will stop the paint drying on the needle cover ?

i do have a busy day tomorrow and the air thinners should get to me by Friday so i will have a play about then and thank you all for the help , we will get it sorted

its not scarey at all dont know why i waited so long to try it , just nuffed things up

[Guest]

First Monica I assume the air adjuster on the airbrush does not have a gauge. In which case I would leave it in a position open and use the adjuster with gauge on the compressor. Ensures you get a measurable pressure rather than an adhock type.

One thing that Ian (M) mentioned. Is your brush a single action or dual action. With a single you just pull the trigger back

Dual action push down the trigger to get the air pressure. Pull back the trigger for paint. If it is dual action then push the trigger right down before pulling back for paint and keep it down until you release the trigger. If you do not push all the way down you will not get the full pressure. All this becomes auto in time. As Ian has highlighted if you do not get the sequence right you will probably get splotches plus a blocked airbrush.

Pressure. Just start at 25 then 20 then 15 and see how it goes for you. Once you get all this sorted i am certain, as I was, that you will be over the moon with the finish.

Laurie

[john i am]

Monica frustrating airbrush problems for you. Please be aware of what you are experiencing I would say a very high percentage of people have suffered also me especially when they 1st picked up an airbrush .there were times when I wanted to throw it through the window. All I can tell you is to follow the excellent advice that people have given you in previous posts .don't wait to spray your paint onto your models practice on bits of card 1st make sure you have all the correct mediums paints thinners cleaner cotton buds etc and always flush your brush immediately after every use good luck and perseverance trust me all your trials and tribulations will be worth it in the end regards John

[monica]

hello Laurie, oh sorry and '" Ian" i missed that completely , it is a dual action so much info input at once my head ops: only joking

i think i got that bit right as i started off the kit then pushed down and pulled back all in one motion,

but i did work out about the adjustment screw, so i have lefted that just over half open so it wont fall out,

i will try that as you have said with the PSI and i think we should get this sorted, oh i got over being scared, off the thing ,

so this part is just a hedge in the way , and as you said will be over the moon when sorted

everyone has been such a great help which is real nice

[monica]

hi John ,thank you so much for helping as well,I could not agree more with you, and you know i id think i had it right with the thinner and primer,

but made the miss take off using the wrong thinner ,them it all went sideways ,

but i have taken in as much off the great advice given by all the lads and think we should have this sorted

your right its not scarey buta tab on the frustrating side i think,

i should get the right thinner today but busy so will try again ,

[monica]

well look what the postman gave me today so will be giving this another crack tomorrow as well , fingers crossed ,if not i think what John said sounds good to me , only joking

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