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What is Tamiya XF-21 Flat Base?

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  • Member since
    April 2003
  • From: Seattle, WA
What is Tamiya XF-21 Flat Base?
Posted by RonUSMC on Wednesday, April 16, 2003 7:43 PM
What is this color? I thought it was a flat overcoat, but it wasn't... its like a cream color or something.

What is it used for? Just normal color but named wrong?
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  • Member since
    January 2003
Posted by shermanfreak on Wednesday, April 16, 2003 8:31 PM
Just an additive to convert a gloss colour to flat. I'm not 100% sure of the mix ratio though...I've never used it.
Happy Modelling and God Bless Robert
  • Member since
    December 2002
  • From: USA
Posted by naplak on Wednesday, April 16, 2003 10:08 PM
I am not sure if that number is correct tho... XF-21 is a color called Flat Sky.

But that right about the Flat Base...
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  • Member since
    January 2003
Posted by shermanfreak on Wednesday, April 16, 2003 10:54 PM
Good point naplak .... didn't even pick up on the number. Now I'll have to dig my handy dandy Tamiya colour chart out.

And the survey says XF-21 = sky X-21 = Flat Base

Happy Modelling and God Bless Robert
  • Member since
    December 2002
  • From: Pominville, NY
Posted by BlackWolf3945 on Thursday, April 17, 2003 11:09 AM
Tamiya's Flat Base is, indeed, an additive to make gloss colors flat. I found this out the hard way when the Tamiya paints first came out.

I was about 12-14, somewhere in there, and I built a beautiful Monogram 48th P-47D in far east RAF colors (it was beautiful to a 12-year old, anyway!). I needed to tone down the decals and the gloss I had used under them. I was still brushing paint at this stage and I laid on a nice thick coat of Flat Base over the entire model.

Came back the next day and the whole thing had turned a rather inconsistent white, with some of the paint and markings barely showing thru! You live and you learn, but it gave me an idea which I have yet to try to this day. Perhaps someday in the near future I shall build a Bf 109 in temporary winter camo...

Fade to Black...
  • Member since
    November 2005
Posted by Anonymous on Thursday, April 17, 2003 11:40 AM
Yep, it's an additive for other paints to make them flat. You can add X-21 flat base to Future (about 10-20%) in varying amoungs and create a flat or semi-gloss coat out of it. My experiments showed that going above about 20% resulted in more of a 'cloudy' clear coat rather than a 'flat' clear coat.

M.

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