Quick Answer

No, you should not mix Mr. Color and Tamiya acrylic paints directly. They use different solvent systems: Mr. Color is a lacquer-based paint, while Tamiya acrylics are alcohol-based. Combining them can cause clumping, poor adhesion, and an uneven finish. Stick to using each paint as intended for best results.

Why the Myth Exists

Many modelers assume all hobby acrylics are interchangeable because they look similar in the bottle and are often used on the same projects. Both Mr. Color and Tamiya paints are popular for gunpla and scale modeling, and they can be thinned with similar-looking thinners. However, their chemical compositions are fundamentally different, which is why mixing them leads to problems.

The Science Behind the Incompatibility

Mr. Color is a lacquer-based paint. It uses strong organic solvents that evaporate quickly, giving a hard, smooth finish. Tamiya acrylics, on the other hand, are alcohol-based and use a milder solvent system. When you mix them, the lacquer solvent can attack the acrylic binder, causing the paint to curdle or separate. The result is a gritty texture that ruins your airbrush or brush work. Even if the mixture seems fine initially, the dried paint may be brittle or prone to peeling.

How to Use Each Paint Correctly

For best results, use Mr. Color paints as a complete system: thin with Mr. Color Thinner and apply in thin coats. The paint dries to a hard, smooth finish ideal for gloss coats and fine details. Tamiya acrylics work best when thinned with Tamiya X-20A or isopropyl alcohol. They are excellent for hand brushing and airbrushing, especially for base coats and layering. If you want to combine effects, apply one paint over the other only after the first coat is fully cured—never mix them in the same cup.

Myth vs. Reality: Quick Verdicts

  • Myth: You can mix Mr. Color and Tamiya acrylics like any other paint.: Reality: They are chemically incompatible. Mr. Color is lacquer-based; Tamiya acrylic is alcohol-based. Mixing them causes clumping, poor adhesion, and an uneven finish. Never mix them in the same bottle or airbrush cup.
  • Myth: Thinning both with the same thinner makes them mixable.: Reality: Thinners are formulated for specific paint systems. Using the wrong thinner can ruin the paint's properties and cause it to dry incorrectly. Always use the manufacturer's recommended thinner for each paint line.
  • Myth: If the mixture looks smooth, it's safe to use.: Reality: Even if the paint appears mixed, the chemical bond is compromised. The dried coat may be brittle, peel, or react with subsequent layers. Test on a scrap sprue first—but it's better to avoid mixing entirely.

Products That Work Best on Their Own

  • Mr. Color Paint C7 Gloss Brown 10ml: Mr. Color hobby paint is a paint that has long been regarded highly by modelers world wide as a model paint that delivers an outstanding finish. Generally, Mr. Color provides a wider range of paint colors and finishes than Aqueous Hobby Color, and will dry to a smoother and harder finish. This means Mr. Color is ideal for achieving a durable, high-quality finish on gunpla and scale models. Use it with its dedicated thinner for best results—don't mix it with other paint types.
  • Citadel Layer: Elysian Green 12ml: Citadel Layer: Elysian Green is a water-based paint formulated for crisp highlights and building up layers. It has a smooth matt finish. Water-based paints like this Citadel layer paint are fully compatible with each other and can be mixed safely. If you need to blend colors, stick to paints within the same solvent family—water-based with water-based, lacquer with lacquer.