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X-21 Flat Base isn't a paint on its own — it's the clever additive that turns gloss or semi-gloss Tamiya acrylics matt. Mix in a little to knock back the shine exactly as much as you want, giving you full control over your final finish.
At a glance
Matting additive (not a colour)
10ml glass jar
Mixes into Tamiya acrylics; thins with X-20A
Part of the Tamiya X range
Best for
Reducing gloss and semi-gloss finishes to matt
Dialling in a custom sheen
Flattening clear coats
Total control over your final sheen. Works hand in hand with the Tamiya X and XF acrylics you already use.
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