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hey dakka,

just picked up the minitaire from badger paint set,

having a slight issue, not sure if its because im new to airbrushing or if I am using the paints wrong.


I did a standard power sword effect that fades from white to dark purple with gradients in between, this worked just fine.

I then did a black base coat, and a metallic highlight, also worked just fine.

but, then I did a dark blue base coat, and it had an "oily" or blotchy finish on it. I figured maybe I hadnt mixed the colour enough, shook the heck out of it, and resprayed. still got the oily finish.

used a different lighter blue, mixed it up really well, waited for the dark blue to dry, and tried to put this on top of the dark blue, again I got the oily/blotchy finish.


Am I doing it wrong? I cant find this problem on google/youtube, so I must be missing somethine.


any advice?

What Brand are the colours. Only the ghost tints?
What primer
How much bar is your air
Only shaking the Plasma Blue for example doesnt worked for me i Had to Open the bottle and mix it with a stick.
Sounds First like some Kind of part of the Solution Medium from the ghost tints...maabe a bad One?
Varnishing doesnt work?

Some of the badger paints are REALLLY thin and takes multiple coats.

Like the cracked leather does that for me too.

i still haven't found a fix for it.

hmmm,

maybe I need to use a dedicated primer then if badger is thin, the badger black did fine as a primer coat,

the purple I primed white (krylon spray paint) first and it worked fine,

the blue I primed with badger dark blue straight on to plastic, so maybe that is it since no matter how much I mixed or swapped colours the blues keep splotching and separating.

Badger Raven black is fine i find (its not really pure black but slightly grey which i like)

You will probably want to use primer

its possible the plastic had some residue or something on it as well that was messing with your paint job.

so i tried using primer, and it didnt help.

now even the purple paint that worked before is giving me this oily finish.

so tried priming, and cleaning the *HELL* out of the airbrush in all its component parts (ie needle and everything was broken down and cleaned till it was shiney stainless steel, wasnt too dirty to begin with though)

still getting the oily finish, tried the purple colours that worked prior, now they too have the oily finish.

could it be a defective vapour trap possibly?

using a brand new iwata smart jet is850, screwed in the hoses as per instructions, turned it on and started airbrushing with the hoses it included in the kit.

Air brush is IWAta NEO also brand new

could this be temperature related? was spraying last evening in temperatures comparable to being outside, so around +5 to +10 degrees centegrade, should I be doing this indoors at room temp perhaps?

Pictures?

I dont think temperature would make an oily finish.

my camera wont pick up the detail unfortunately.

goes on smooth when wet, as it dries, it seems to separate similar to how olive oil separates from vinigar after you shake it.

IE beads of oil form out of nowhere

Ok then yeah that is the problem i have with cracked leather.

its possible whatever they are thinning with it is killing the paints ability to adhere or something silly.

i remember once i started mixing with a second color for a blend it got a little better. but not by much.

I have had this happen to a few of my minitaire paints.

Personally, I think its the paints - something is wrong with a couple of them.

I base this on the fact that I have successfully tried a LOT of different airbrush paints and airbrushes - and never seen this before.

(golden, testors aztek, testors metals, createx, allclad laquers, vallejo model air, vallejo game air, tamayia thinned, gw thinned, craft paint thinned, miniatire, badger (other air paints), thinned vallejo model, etc.).

Some of my blue minitaire paints seem more prone to this - and its not every time. I have tired different under primers as well, and it still happens sometimes. Quite annoying.

I had heard of this a few times before, and the person said they just got another bottle of the same color and it was fine.

best of luck, and let us know if you find out anything else.

Possible moisture issues?

Do you use a moisture trap?

Is it typically duringna lengthy airbrushing session?

For my case -
Yes, I use a moisture trap.
Moisture issue - no, the paints before and after were fine.
Lengthy painting session - yes.

Here is why I think it was the paint, but other factors could have been at play -

I have a lot of paints, and I paint the caps - helps organize them on my paint racks. I took all of my minitaire paints (I bought the whole set) out and usesd a known good spray primer, and primered all of the tops white.

Once dry (yes, dry for 24 hours) , I set up the paints, assembly line fashion, and sprayed the tops – in lots of about a dozen or so, as it got a bit tedious. I used my badger patriot 105, which is incredibly easy to clean between paints – especially if you are needing only a drop or two.
So, I hit about three colors, out of the 80 or so, that had this weird spotting (looked like oil drops) problem. This happened in more than one batch, and when it did happen, the paint prior to the problem paint was fine, and the paint after it was fine.

The really interesting thing – is that even when painting another layer over the problem area – the oily patch would show through, unless I gave it an abnormally thick layer.

So, as the only real variable was the specific paint –
(same primer, same plastic part, same temp, same pressure, same humidity, etc.)- and some of those paints it happened to in normal (not assembly line) use – I surmised that something was off with that specific bottle.

Note; this also happened when spraying on test pieces of plasticard as well a few times, so no, it was not something already on the paint top, and I also had it happen once on the bottom of a model.

Exceptionally rigorous shaking and using VERY thin layers seems to reduce it. A similar thing happend to a friend of mine who uses minitaire, and he just bought another bottle of the same color, and that one is fine.