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sabu

Senior Aircraftman
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Posts: 26
Reply with quote  #1 
I have a nearly complete model that has been painted with Tamiya acrylics.  I have now also put down Tamiya XF-86 Flat Clear Acrylic in preparation for a panel line wash using Tamiya Enamel black.  I am using mineral spirits and a q-tip to rub off the wash.  Having now done the top and bottom of a wing I've found the wash is not coming off as well as I want - the model is stained in places where the brush was dabbed on the model.  Although the stains are relatively light, I don't think they will ever come out at this point.  I had read several posts (elsewhere) that doing anything but a light coat of XF-86 could potentially ruin the finish so I did indeed put it on very lightly.  Given this situation, my questions:

1. Is using XF-86 in this way a bad idea - is it intended for something else?

2. Should I be using a semi-gloss or full gloss instead?

3. If using a semi or full gloss coat prior to doing a panel line wash is required in order to ensure the wash comes off properly, is this not going to make the flat paint below it glossy, and therefore no longer properly represent the model?  The vast majority of the model has a flat, not glossy paint finish.

Happy to post photos of the 2 wings - 1 has been washed as described (ie. poorly IMO) and the other is unwashed for comparison.  Any comments appreciated!
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Gadjung

Flying Officer
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Posts: 524
Reply with quote  #2 
Flat Clear is a matt one wash. Don't think it's good for panel liner. I always use a Clear one. TS-13 if I not mistaken. It's gloss. It make colors glossy and add more contrast to them, but then you finish with panel lines and so on - just spray Flat Clear or Semi-Gloss and you should be fine. 
Tamiya Panel-Liner is strong enamel type one, it dont go off with just a Turpentine. You need something stonger, as F-20 enamel thinner. 
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sabu

Senior Aircraftman
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Posts: 26
Reply with quote  #3 
ok so to summarize, the answers are as follows:

1. yes, using XF-86 as prep for a panel line wash is indeed a bad idea.

2. a gloss coat should be done instead.  TS-13 was recommended, but I am going to assume that X-22 will also be fine as I'm not a fan of the spray bottles - too hard to control IMO.

3. yes using a gloss finish in prep for a panel line will remove the intended, flat appearance of any XF category Tamiya paints used underneath, however, you can flatten those out after the panel line wash via the XF-86 and/or semi-gloss as required by the surface underneath.

So basically for my specific case, use flat paints as required for original finish, use X-22 gloss clear acrylic as prep for panel line wash, use Tamiya enamel wash and Tamiya X-20 enamel thinner to remove the wash to get desired finish, and then apply xf-86 to return to a flat finish as/where required.

Please do correct if anything was misunderstood here, and thanks for the help!
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sabu

Senior Aircraftman
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Posts: 26
Reply with quote  #4 
I'm encountering one small problem here....X-20 enamel thinner seems to be available pretty much nowhere save for a special order off of amazon.  There is a video on youtube that indicates it's rarity may be related to it being toxic.  Genessis models has a video recommending odorless turpentine for this purpose if I'm not mistaken; perhaps this is the way to go and given that I can't easily get X-20 enamel I'm leaning that way. 

Anyone have alternate thoughts here?  I was intending to use mineral spirits (and have been with _some_ success as previously described) but given X-20 as recommended by Gadjung seems largely unavailable, is mineral spirits as good, better or worse than turpentine for washing this stuff?  I have mineral spirits on hand, but would instantly get turpentine if anyone thought it was better...thoughts?

Wash I'm using: https://www.tamiya.com/english/products/87131/index.htm
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Gadjung

Flying Officer
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Posts: 524
Reply with quote  #5 
If you are doing gloss coat with airbrush, I can also recommend such varnish as Aqua gloss clear. It's good for protecting paintwork for decals and weathering. 
https://www.migjimenez.com/en/alclad-ii-metallic-paints/1574-aqua-gloss-clear-alc600.html
As for replacement for X-20, I'm not good at chemistry at all, so can't advice anything, but maybe use other panel liner then? Not enamel as Tamiya one, but something like 
https://www.migjimenez.com/en/weathering-products/1504-black-wash.html
It's says that it's enamel too, but for my experience it performs differently from Tamiya and easily can be removed by Turpentine.
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Laurie

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Sergeant
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Posts: 231
Reply with quote  #6 


Just used this for the first time. Very impressed. Flattens out well & gives a good smooth glossy coat.

Laurie

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Laurie
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