I got some one shot black primer last week and today I started to prime the Flak gun. All went well for about a minute then it started to splutter a bit and stopped spraying altogether. I thought it was just tip drying so gave the tip a wipe and it seemed OK but only for a few seconds. Having decided that enough was enough I started to clean the airbrush only to find the paint had become a gooey mess inside and it took me ages to clean it, and I mean ages as some of it was so sticky I dug it out with a toothpick. So later on I thought that perhaps the .3mm needle was too small so I got out my other airbrush with a .5mm needle fitted and tried again having thinned the paint slightly with a little water but the result was the same. So, is it me, is it the paint or should I just take up knitting instead? Answers on a fully built and painted model to Useless Eustace, Scotland.
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What primer was it? -
Andy.
No doubt you are using as you have any other Acrylic primer. It does sound strange though has to be the paint.Comment
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if its the MIG One Shot primer, i couldnt get on with it either......went in the binPer Ardua
We'll ride the spiral to the end and may just go where no ones beenComment
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Which paint and what did you thin it with?
It sounds like some kind of reaction has produced the gooey mess and I can think of at least a couple of combinations that can do that. I discovered them the hard way!Comment
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Hope you sort it, I'm of no help as I find the airbrush a magical art that I never gave got on with, hence why I do wood and paint brush.Comment
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Hi Andy
Gotta be one of three problems. A 'bad' batch of primer, a not compatible thinner or some residue from a previous use of the airbrush.
Very strange though and very frustrating.
JimComment
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Hmmmmm,
A very frequent problem......with a myriad of possible solutions,question is........
...... how many will you try,in which configurations,and for how long?!
This just sums up the reasons why i try and use my A/B as little as possible or even if at all, on builds where i can get away without it!
Obviously i wish you all the best in sorting out your problem though Andy:thumb2:,
AndyComment
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What do you clean your airbrush with. Maybe thinner/IPA/cellulose residue reacted with the paint?Si vis pacem, para bellum.Comment
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Mig One shot black primer.
Indeed John, it does seem strange as I use nothing but Acrylics.
Did you have the same problem with it?
As mentioned above, it's the Mig One Shot primer and the first attempt was straight from the bottle as it says there is no need to thin. Second time I thinned it with a little water and it was just the same.
I am leaning to a bad batch.
I clean my airbrushes with water and IPA but the second attempt was with an airbrush that had been cleaned and left in it's box for over a month so I reckon any IPA would be well evaporated away.
Andy.Comment
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Sounds pretty bad Andy, I ordered some Mig One shot primers to see if they are better than the Vallejo primer I'm using now, but haven't yet got the time to test them out...
I asume it's a bad batch though, as so many seem to like them?Comment
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Just had the same problem with Vallejo Metallic Gloss Primer. Sprayed OK for a bit. Refilled cup a splater dash. Changed brushes the same.
Chucked in bin new arrived to day no problem.
Speculating I wonder if I have in using the old lot & not given it a good shake every time I have used it. It has thickened at the bottom.
Now put a couple of ball bearings in the new pot & get her in doors to shake it.
LaurieComment
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Mabye it is a bad batch as I shook the bottle for a long time and did as it said in the instruction label to no avail, time for the bin I think and go back to my old faithful Tamiya.
Andy.Comment
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Only asking Andy, but have you tried Stynylrez? My first attempts with it were not satisfactory as I had problems cleaning my A/B after use. I switched to using IPA as a cleaner and now no problems. Don't use IPA to wipe away dust etc from your kit though. It will fetch off the primer!Comment
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