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AltcarBoB

It's over the airbrush has to go

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Posted (edited)
15 hours ago, Murdo said:

I've rarely had a problem spraying Tamiya acrylics with many different airbrushes. I hate brush painting with them though.

 

Revell Acrylics are good once you get the thinning right.

 

I fancy trying to spray enamels next...

Brush painting Tamiya is impossible without thinning and using Flow Improver. When I hand brush Tamiya my method is thin with 20% to 30% distilled water that contains 10% Winsor and Newton Flow Improver, thats 10% flow improver to water I tried 10% Flow Improver to paint ratio once by mistake and it was a disaster the paint wouldnt dry. I say 20 to 30% because some of the Tamiya range is thicker than others its just a case of trial and error on an old kit that is used as a test mule.

 

Since I wrote my original post I have hand painted four models three successfully and one less than successfull though that was metallic aluminium paint which is difficult to get spot on and the modelling room was really hot and stuffy meaning the paint dried too quick and left brush marks. A long session with Deluxe Materials paint stripper got me back to plastic and I waited till it was cooler before brushing and it went well.

 

I havent sold the airbrush yet I am waiting to see if the Buy and Sell section reopens though if it doesnt open soon it will go on eBay.

Edited by AltcarBoB
speeling mitsakes

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21 hours ago, grufsnik said:

What thinner do I use for enamels? White spirit? or something else?

 

You can use many things - there isn't much that an enamel is incompatible with, but you'll get different behaviours depending on what you choose.

 

White spirit works. It's cheap, but it smells strongly and dries very slowly.

 

Levelling Thinners for lacquers work. It's expensive, smells very strongly and dries quicker than white spirit.

 

Cellulose thinners usually work very well. It's cheap, smells very strongly and dries fast. It's fine for airbrushing but not recommended for brush painting as it can soften the surface of the kit plastic until it dries.

 

Naptha is what we recommend. It's not as cheap as the bulk stuff above but has the weakest and most pleasant smell of the lot and dries almost as fast as cellulose thinners.

 

I use naptha for all my actual thinning and use the cheaper household type stuff for cleaning.

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Thanks for the tip regarding Naptha. Must confess, I'd never heard of it, so I've learnt something new today.

 

Steve

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Thanks very much for your help, will give it some thought though never heard of naphtha. 

G

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On 5/24/2020 at 7:04 PM, grufsnik said:

What thinner do I use for enamels? White spirit? or something else? 

 

Hi there,

I can wholeheartedly recommend the naptha based thinners for enamels and while he is not blowing his own trumpet would suggest you try Colourcoat Thinners from @Jamie @ Sovereign Hobbies.

Using his masterful YouTube tutorial the paints flash off to touch dry very quickly.

 

Hope this helps,

 

Cheers,

Alistair

 

 

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6 hours ago, AltcarBoB said:

Brush painting Tamiya is impossible without thinning and using Flow Improver. When I hand brush Tamiya my method is thin with 20% to 30% distilled water that contains 10% Winsor and Newton Flow Improver, thats 10% flow improver to water I tried 10% Flow Improver to paint ratio once by mistake and it was a disaster the paint wouldnt dry. I say 20 to 30% because some of the Tamiya range is thicker than others its just a case of trial and error on an old kit that is used as a test mule.

 

Since I wrote my original post I have hand painted four models three successfully and one less than successfull though that was metallic aluminium paint which is difficult to get spot on and the modelling room was really hot and stuffy meaning the paint dried too quick and left brush marks. A long session with Deluxe Materials paint stripper got me back to plastic and I waited till it was cooler before brushing and it went well.

 

I havent sold the airbrush yet I am waiting to see if the Buy and Sell section reopens though if it doesnt open soon it will go on eBay.

 

Thanks mate, I'll try that mix.

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I'm fairly new to airbrushing too and I've experienced most problems.

First of all for me tamiya with x20a is so easy to spray.

 

Secondly I had many issues with Vallejo model air, but now I'm confident with it. Tamiya and Vallejo are very different and need to be used very differently.

 

With Vallejo I need to be patient, but that's a good thing for me.

I also use Vallejo primer and thinners now, it keeps things simple. 

 

Revell aqua is easy to use.

 

Humbrol is worse than dog poo.

 

Good luck.

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On 25/05/2020 at 16:43, AltcarBoB said:

I havent sold the airbrush yet I am waiting to see if the Buy and Sell section reopens though if it doesnt open soon it will go on eBay.

If I was struggling with something I think it would make me even more determined to conquer it, not sell up on eBay 🙁

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Quote

Naptha is what we recommend. It's not as cheap as the bulk stuff above but has the weakest and most pleasant smell of the lot and dries almost as fast as cellulose thinners.

That's a great shout. When I do a search for naptha on Amazon I get results for Zippo lighter fluid.. No mention though of that the ingredients are. Is this the same stuff?

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I buy Naphtha buy the gallon, the brand is Azure. Perhaps that might help help you in your search, I will not use that outrageously vile, rectitude bereft auction site so don't know if it is available there or not.

 

Great stuff, as well as being good for thining gods own paint it powers my Tilley lamps, hand warmers and lighters.

 

Colourcoats thinners are very good but not available in bulk.

 

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They currently have Naphtha on sale 5lt x 4 £49.49 free delivery, just placed an order.

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Posted (edited)

I've had an airbush for about 18 months now and experienced lots of the same problems as you, but find that the brand of paint makes a huge difference. I used to try Humbrol.... forget it. Then Vallejo Model Color... again really difficult to get constancy right. Vallejo Model Air slightly better but can still clog.

The best are Tamiya and Mr Hobby Aqueous... both very good when thinned a little with Tamiya X20A thinners (they do smell in the jars but hardly at all when when sprayed.

In my opinion Tamiya is the best overall. Sprays beautifully through 0.2mm nozzles and hardly any clogs, sputtering etc. Despite hardly any odours I still wear a mask though to be on the safe side (I too suffer from Asthma)

My tip would be to use Tamiya where you can and then if you can't get the colour match try Mr Hobby as their paint range is superb. 

Give Tamiya a go first.

👍

Edited by binbrook87

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