> Building Supplies > Paints > Acrylic : Tamiya Acrylic/Poly Thinner X20A 8.5 oz tam81040

Acrylic/Poly Thinner X20A 8.5 oz

This is a 250ml Bottle of Tamiya color Acrylic Paint (Thinner).

Tamiya Acrylic/Poly Thinner X20A 8.5 oz Hobby and Model Acrylic Paint #81040
 Tamiya # tam81040
Retail $8.75  SAVE 20% !
Tamiya Item # tam81040
Specifications :
  • Volume: 250ml
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Spotlight Review

"The Absolute Best For Tamiya Acrylics"
This is the best thinner possible for Tamiya acrylic paints. There is simply no better option. Yes, mineral spirits also work, but not as well. Using a 0.1mm airbrush tip, the default Tamiya ratio of 2 parts paint for 1 part thinner (this thinner) is perfect. There is no other word for it. It never clogged, sprays smoothly with no spitting, and doesn't run. Of course, I am building up light coats, but even then it is still amazing. My only gripe is how expensive it is compared to alternatives. Thankfully, one bottle of this can mix you 34 cups of 3/4 Tamiya paint at default ratio. That should be more than enough.

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  • Made from water-soluble acrylic resins and are excellent for eithe brush or spray painting..
  • Can be used on styrol resins, styrofoam, wood, plus all of the commo model plastics..
  • It covers well, flows smoothly with no blushing or fading, and ca be blended easily..
  • Plastic bottle with a screw-on lid..
  • Paint number X-20A on the Tamiya Color Chart..


  • Volume: 250ml


One Bottle of Acrylic Paint (Thinner)

Requirements & Suggestions

  • Stir Stick
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"Tamiya acrylic/poly thinner X20A"
While X20A does what it's supposed to do very well, using it for thinning and airbrush cleaning is an expensive proposition. I found a home brew recipe on the internet that is easy to concoct, is much less expensive, and (for me, at least) works just as well. I'll be using the home mix for cleaning my airbrush and the X20A exclusively for thinning, but when I finish this bottle I'll go to the home made mix for both cleaning and as a thinner. PRO: Works very well. CON: Too pricey. I recommend it if you want to Tamiya products exclusively.

"Excellent thinner for all acrylics."
Dan S
It's the only thinner I use for my airbrushing. I start at 1-1 plus or minus for most of my Tamiya acrylics and it always seems to hold true. Also use it on about a 1-4 to 1-3 ratio (thinner to paint) to get the so-called 'Air' products from Vallejo, etc. to flow and mix just fine. I don't tediously measure or count drops, I just eyeball it and get it close.There's no reason for me to try anything else. Great, effective product, decent price, and a good size container that fits on the hobby shelf. Exclusively used and highly recommended.

"Can't Live Without"
This is the best cleaner I have used yet. I just can't paint without it. Pros- I love Tamiya paints and us them when ever I can. There cleaner is the best. I even us it on my Testors paints. Cons- none. It might be a little high in price, but saves a lot in replacing paint brushes, paint guns and parts.

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