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 Post subject: Acrylic Thinners
PostPosted: Sat 20 Feb 2016 19:16 pm 
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This may seem a silly question but . . .
Whenever I want to thin down enamels I get a tipple of thinners and pour into the tin but with acrylics I dont think I can do that really so what would be your suggestions?
I am considering pour the acrylic into a small vessel and tipping thinners in there . . . .
many thanks

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 Post subject: Re: Acrylic Thinners
PostPosted: Sat 20 Feb 2016 20:55 pm 
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I use a small dropper thing to mix the thinners into the paint.
I do put some paint in a separate, clean pot (airbrush jar) and then add a couple of drops of thinner into the mix until it seems right. I always give a test spray and add more paint/thinners as required.

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 Post subject: Re: Acrylic Thinners
PostPosted: Mon 22 Feb 2016 18:22 pm 
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Lincolnlanc wrote:
This may seem a silly question but . . .
Whenever I want to thin down enamels I get a tipple of thinners and pour into the tin but with acrylics I dont think I can do that really so what would be your suggestions?
I am considering pour the acrylic into a small vessel and tipping thinners in there . . . .
many thanks
Depends on your use of the acrylic paint. Is it to brush on? I use a polythene pipette to suck up thinners and then squirt it into the paint pot, then stir/shake it in.
If its for airbrush use, then its putting some paint in a clean pot then adding thinners, as above.
The 3ml pots from Humbrol starter sets are great for mixing and keeping small amounts of special mixes in.
I don't measure by the pipette, I just go by 'thats enough' amount.

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 Post subject: Re: Acrylic Thinners
PostPosted: Mon 22 Feb 2016 21:29 pm 
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Thanks to you both, Nick and Fred.
Its my intention to use a brush as I am moving onto acrylics for the painting of canopies and really was after some kinda guide as to the amount to use. I wasn't sure just how strong (?) the thinners was/is but I shall try by trial and error.
Thanks again
Ian

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 Post subject: Re: Acrylic Thinners
PostPosted: Mon 22 Feb 2016 21:34 pm 
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I only really use Humbrol paints.
To every new pot of paint I add some flow improver which also acts as a thinner, sometimes I add a bit of water too if the paint looks thick.
Just checking my pipette it looks like I add about 0.5cc of flow improver.

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 Post subject: Re: Acrylic Thinners
PostPosted: Mon 22 Feb 2016 22:18 pm 
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Any answers to your question will vary depending upon which brand of paint is being used and how it is being applied :idea: I don't usually thin Humbrol acrylics unless I'm airbrushing, and then I thin to a consistency rather than a percentage as this will vary depending upon the viscosity of the paint in its neat form.
I never thin Vallejo Model Air paints when airbrushing, but I sometimes thin Vallejo Model Color when brush painting :juggle:
I have been painting (one way or another) for over 50 years and have never measured amounts of thinner. Its a skill acquired through trial and error :wink:

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 Post subject: Re: Acrylic Thinners
PostPosted: Fri 13 Jan 2017 09:06 am 
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Does anyone know if Humbrol acrylic thinners are suitable to thin Tamiya acrylic paints, for airbrushing


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 Post subject: Re: Acrylic Thinners
PostPosted: Fri 13 Jan 2017 12:00 pm 
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No, Humbrol are aqueous and Tamiya are lacquer based :idea:

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 Post subject: Re: Acrylic Thinners
PostPosted: Fri 13 Jan 2017 13:19 pm 
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Er, Tamiya and GS acrylics are resin based, and spirit thinned.

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 Post subject: Re: Acrylic Thinners
PostPosted: Fri 13 Jan 2017 15:19 pm 
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Does that mean you thin Tamiya with white spirit or Humbrol Enamel thinners?

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 Post subject: Re: Acrylic Thinners
PostPosted: Fri 13 Jan 2017 16:26 pm 
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Personally I don't thin Tamiya acrylic, but then I always brush it.

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 Post subject: Re: Acrylic Thinners
PostPosted: Fri 13 Jan 2017 16:44 pm 
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I believe that thinning Tamiya acrylic paint is always a bit of a puzzle. I'm told that you thin it with cellulose thinner (yikes!) and spray it through an airbrush and that works pretty well. Me, I paint with a brush, so I add a little Windex https://www.amazon.co.uk/Windex-768ml-T ... B006NYXTA0 and brush it on. Of course, you could get some good old Bicardi 151 and thin it with that. The paint smells like Tequila so it certainly does contain ethanol. But Windex is the best thinner I've found for brushing it on. Seems to improve it immensely. See the link for the "where to buy" info.

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 Post subject: Re: Acrylic Thinners
PostPosted: Fri 13 Jan 2017 20:02 pm 
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Thanks for the advice, albeit mixed. White spirit, doesnt mix well with Tamiya acrylics at all, I know Tamiya sell thinners, but was wondering, if humbrol would work as it is easier to obtain for me.


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 Post subject: Re: Acrylic Thinners
PostPosted: Sat 14 Jan 2017 11:38 am 
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Personally I would use a companies own brand of thinner where possible. The consistency of Tamiya paints seems a lot different than Humbrol and other acrylics, they are a kind of a bit rubbery almost as they dry.


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 Post subject: Re: Acrylic Thinners
PostPosted: Sat 14 Jan 2017 16:46 pm 
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Tamiya makes enamel as well as acrylic paint. Could that be causing some of the confusion here? I've always thought that adding cellulose thinners to Tamiya acrylic is particularly perverse. Spraying M.E.K. or some industrial solvent through an airbrush is risky business, IMHO. There's the fire hazard, first off. I pity the poor soul who detonates a cloud of this stuff with an errant spark! Assuming you survive the resulting inferno, dragging your bandaged self back to the workbench for more lacquer thinner fun can't be good for bunnies and other living things.

Windex, my man. Windex. Household cleaning products are the modeler's best friends. Also, a good way to keep glue and paint off of your clothes would be to wear an apron of some kind....

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 Post subject: Re: Acrylic Thinners
PostPosted: Sat 14 Jan 2017 16:53 pm 
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Thinning acrylics for brush painting ? ...car window cleaner (the blue stuff)

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 Post subject: Re: Acrylic Thinners
PostPosted: Sat 14 Jan 2017 18:42 pm 
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I don't use Tamiya acrylic too often but; I have used just water to thin it for brushing on and I use cellulose thinners with it when spraying.

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