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+0.6mm Airbrushes with adjustable aircaps

Discussion in 'Airbrushes' started by palk, May 12, 2022.


  1. palk

    palk Spider Splatterer

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    I am looking for suggestions of airbrushs old,ish or new with an adjustable air cap, like maybe HP-BE2 with a paint nozzle between 0.6mm to 0.9mm that has exellent atomization with thick undiluted paints. I dont need a fan cap and would prefer a removable paint cup/ bottle. I need to run 50 60 psi pressure as the clear needs at least 50 to 100mm from the target to change it's thickness. It is thixotropic in nature. I am using a solvent based 2K clear coat that has a high solids content. I paint it on at least 0.16 to 0.25mm thick when cured..
    The 2K clear I am using is freaky, it self levels like no paint I have ever used. It will cover 240 grit sand paper and leave a glassy finish, even applied and dried vertically with one coat
    jord001 likes this.
  2. Vladimir

    Vladimir Detail Decepticon! Very Likeable!

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    I'd say, for you better choice might be Iwata RG-3. Also cheap chinese gun named K-3 sprays well, but is not going to serve the same long time as Iwata does.
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  3. palk

    palk Spider Splatterer

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    Hi Vlad thanks for your suggestion.
    I have a K3 somewhere and it is a little large and it was not a performer . I am using a gravity 0.8mm Pistol Chinese airbrush with eclipce,ish head setup. That I have tuned the needle and modified a gravity cup to a hose attached to a 350ml remote pot. I paint lures 55mm long by 15mm round & 400 at a time. I am looking for a brush with a really fine atomization. As the clear I am using seems to thicken more, the finer it gets but my current brush can only do it at 50 to 60 PSI and at that pressure and closeness it is moving the clear around on the lure.
    If I could get the pressure down to 30 to 40PSI with the same or better atomization and the same paint flow rate I would call that a win.
    I will post a pic of my current brush
  4. palk

    palk Spider Splatterer

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    Screenshot_20220130-151532_Video Player.jpg I have polished the needle, in and out of the paint nozzle, tip only
    I coated the handle with Epoxy resin with sparkles. Because "I am a party boy" it was made from ABS plastic that became tacky when exposed to thinners. The trigger was made from chrome plated ABS so I made a stainless trigger to replace it from some 2mm 316 scrap stainless sheet I had laying around.
    I cut the threaded end off the smallest cup and with some steel filled epoxy putty formed a tapered hole for a push in EPDM 4mm o/d hose attachment to my gravity paint reservoir.
    Under my right hand in the pic.
  5. DaveG

    DaveG Airbush Analyst Very Likeable!

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    I can;t thin of many brushes with adjustable heads... thing of the past.

    The H & S Colani may be something that could work for you. I believe they have both .6 and .8 set ups available for it. Lots of larger cups will actually fit it... I think you may actually be better off with a mini gun or something similar. You should not underestimate the ability of a good fan cap to atomize paint.
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  6. palk

    palk Spider Splatterer

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    Thanks Dave
    I have tried a few solutions
    0.5 nozzle airbrush was way to slow and required 2 coats. The K3 was to much and ran like crap. I borrowed a Star 1.2 gravity touchup gun and bought a 0.8 nozzle kit for it but the pattern was to large. And clogged my spraybooth filters. I was not prepared to drop $300aud on colani research, at the time. So I purchased the cheap $48aud 0.8 pistol airbrush and it worked well, despite the issues I had.
    When I first started I lusted after a colani's . It would improve things, but they where designed to change the paint viscosity to suit the job or nozzle size
    I was thinking that an adjustable air cap might be a better solution for lowering air pressure considering I don't want to reduce my clear coat.
    For me this is all suppositions.
    I have spotted a HP-BE2 but there is no YouTube vids or any real info on them or adjustable air caps being use to adjust atomization.
    Or where they just a way of overcoming manufacturing tolerances
    Any insight you could share would be appreciated.
    Last edited: May 14, 2022 at 3:05 AM
  7. Vladimir

    Vladimir Detail Decepticon! Very Likeable!

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    Now it's more clear what you need that gun for, small things. I haven't used my guns for the things that small.
    RG-3 has somewhat adjustable head. I could take a shot of it if you need, just let me know. Beside that Iwata makes small guns within Eclipse line, but price for them...:eek:
  8. palk

    palk Spider Splatterer

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    I have to admit the K3 I have,,displays all the hallmarks of cheapness. And was probably made from a recycled rice cooker
    When I first started painting lures I used the K3,,, and it was that what biased my view of the crossover type spray brushes.
    Your comments and DaveG convinced me to look again..

    I watched a vid from from U tube and showed the head layout of the Iwata RG-3L and the presenter even referenced the HP-BE2 in the clip as having the same air cap arangement.
    And the prices for RG-3L are not toooo bad.
    So now I am shopping for an RG-3L with a 0.6 and 0.8mm Nozzle
    Thanks again
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  9. Vladimir

    Vladimir Detail Decepticon! Very Likeable!

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    That thing is cheap in many aspects, you're right, but is able to do some jobs right. Especially I don't like about this gun is that one need to unscrew back part to remove the needle. It's very annoying part of the cleaning. O-ring becomes destroyed very fast due to that operation.

    The prices are good, even for new guns. I got mine from e-bay for sweet price in great condition, used twice I think, as inside white and rosy paint was lightly seen:) Some cleaning and it's new again.
  10. palk

    palk Spider Splatterer

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    I have to eat my words a little I did a quick search while posting and found some prices for $96 and $77 AUD I thought that was cheap but they were from a bullcrap sites like https://www.spirovoll.com/ whitch are scammers.
    In Australia they are selling for $250 to $500 ???AUD from retail shop websites.
    From Japan they are advertising them for $120 to $160AUD from reputable shops. For the fan cap version they are a low $97 AUD in japan + freight but apparently are not to good.
    I would like to get the 0.6 and 1.0mm nozzle just to be sure I have the right size for my job
    So it's Japan or wait for one to show up on EBay thats the right size.
    I just looked at bio
    May trouble not know your name
  11. Vladimir

    Vladimir Detail Decepticon! Very Likeable!

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    Besides, you could look at Aliexpress. There were RG-3 there, maybe the price is lover there. I can't say anything as access to Ali is not possible here for now.

    I think, for your purpose you don't need fan cap version.
  12. DaveG

    DaveG Airbush Analyst Very Likeable!

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    Vladimir, it is good to see you posting. I am glad to see you! I hope all is well.
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  13. Vladimir

    Vladimir Detail Decepticon! Very Likeable!

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    Thanx, Dave! I'm glad to see you too.
  14. palk

    palk Spider Splatterer

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    Yeah I agree about the need for me to have a fan cap. It is no surprise it is cheaper. All the reviews about the fan caps are not good, mainly due to no adjustment of air flow to the fan..
    Now I have another problem I found a 2nd hand infinity with a bunch of genuine H&S extras. A 0.4mm needle/nozzle, A/B stand, cup to side bottle adapter, QC fitting, and the FPC valve. All for $180. AUD or 3730.UAH.
    I have a limited budget and a RG3 might have to wait a couple of months.
    I hate decisions between needs and wants. My best detail brush is an 1980s HP-B right now.
    Thanks for the guidance Vladimir
  15. Vladimir

    Vladimir Detail Decepticon! Very Likeable!

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    No one likes that decision making on low budget.
    My thought is what you need the most. From what you've said, it seems you need atomization more than sweets that come with Infinity.
    The question is what atomizes 2K clear better, Infinity of RG-3. Honestly, I have serious doubts that Infinity does. For it you need to reduce the clear badly to normally go through the nozzle. In this case you loose the quality of top coat of your products.
    RG-3 gives you the ability to change the pressure at the nozzle (thus atomization) and regulate to some extent the size of the "dot" paint pattern by changing the position of the head on the threads.
    But I'm not forcing you to buy smth, just thoughts aloud:)
  16. palk

    palk Spider Splatterer

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    When your right,, your right .
    Its an old saying
    But I do take 4 spoons of sugar in my coffee.
    And if it was a choice between 2 used paint guns. I would buy the RG3 but it's the first time I have seen a used infinity for sale in OZ and at almost a 1/3 of new price with a money back guarantee if it is faulty. And I could sell some of the extras that are with it. The FPC valve, "I have 3 air regulators on my paint booth." The H&S 2 brush stand. Spare pinch cap and the ruler spacer cap..
    And give me a little more time for a used RG3 to pop up.
    That what I am what I am telling myself..

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