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netizen
Jun 25, 2023
Can I use Tamiya X-21 (flat base) and Tamiya X-1 (gloss black) to create a semi-gloss black? If so what ratio would you recommend?

I'm a new to modeling and I bought the X-21 thinking it was a matt clear coat, but it's an additive for turning gloss paints into flat paints. The model I'm working on calls for X-18 which is a semi-glass black and my local hobby shop doesn't have it. I figured I might as well use this X-21 if I can.

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netizen
Jun 25, 2023

uwaeve posted:

Never used it but the Tamiya page for it says mix at 1:1 (NEVER MORE) to turn gloss into flat sheen. My guess is you can mix any ratio up that for a continuous spectrum from gloss to flat. I’m not sure where their bottled semi-gloss lies on that spectrum. Do you happen to have any other semi gloss you can match the sheen to? Sorry I know I’m not answering the question but I own it and now I want to know so I looked it up.

Most discussions seem to be people mistakenly buying it as a clear coat then looking for ratios to make it work with gloss clear. I did find a source that said in its proper application as a flattening agent:
4:1 ratio (gloss paint:x-21) for flat
10:1 ratio for semi-gloss

Hopefully someone that has actually used it can weigh in, otherwise I’d just wing it, testing a couple ratios on spoons or scrap until you are happy.

Unfortunately I don't have any other semi-gloss paints to compare. That's a good idea about testing it on a spoon, I think I have a package of plastic spoons around here somewhere. I'll give that a try and see how it turns out. Thanks.

netizen
Jun 25, 2023

Dr. Garbanzo posted:

X-18 which is semi gloss black tends towards the glossier end of the spectrum. I've taken to living with it these days although it annoys me a little but I did at one point mix my own semi gloss black which was a 70:30 mix of semi gloss black and flat black. I'm sure the semi gloss used to be a different level of sheen but has changed along the way.

If you can get some a can of TS29 might give you a good indication of what the semi gloss used to look like.

I'll probably just mix something up that looks acceptable and use that. It's just for the instrument panel on a F4U Corsair so I don't even know how visible it's going to be. This is only my second model and my first airplane.

I was mainly just curious if I could use the X-21 to make a semi-gloss. I figured I have it so I might as well use it...

netizen
Jun 25, 2023

Boaz MacPhereson posted:

I don't see why you couldn't. Try 2:1 color:flat and see what happens. If it's too flat just hit it with some nose grease :v:.

I wonder if this X-21 stuff might be kind of useful if it works well. I can just purchase gloss paints and convert them to different sheens instead of having to buy gloss, semi-gloss, flat variants of the same color.

netizen
Jun 25, 2023

Charliegrs posted:

I am also working on a F4U Corsair. I have been building car and tank kits for a while but this is my first plane. After painting it I hit with a gloss coat so I can do the decaling, but my question is what kind of clear should I put over it after that? Right now it kind of looks "correct" with the gloss coat so maybe I should use gloss? Or would semi gloss look more realistic? I have matte too but I feel like that might not look right. The real planes seem to have a little bit of shine.

Which kit are you building? I'm building Tamiya Vought F4U-1D Corsair 1:48

The painting instructions say:

quote:

Fighters of US Navy and Marine Corps were painted in glossy sea blue from Mar. 1944 ... recommended to use AS-8

I was planning on going with Tamiya sea blue (XF-17) and finish with a glossy clear coat. I know nothing about planes though, so that might not be accurate. Some of the finished models I've seen on reddit have a matt or satin finish which don't seem quite right based on pics I've seen. So Idk...

Did you model yours with the wings folded? I can't quite make up my mind if I want the wings folded or not. Seems like it could be a pain in the rear end and my modeling skills are basically zilch at this point.

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netizen
Jun 25, 2023

Charliegrs posted:

Apparently that lime green color in the cockpit is a primer and the whole plane is painted with it so I did some chipping effects with that color as well as some exposed metal.

Oh that's interesting about the green primer, I bet that looks pretty cool. Post some pics if you ever get imgur working, I'd love to see it. I'll probably go with the factory fresh look as I don't know much about weathering yet. I'll share some pics if I ever get it finished and don't screw it up.

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