How to Use X-21 Flat Base Mini for Acrylic Paints

What Is X-21 Flat Base Mini?

Tamiya X-21 Flat Base Mini (product code 81521) is a small-sized acrylic paint designed to create a flat, matte surface. It is part of Tamiya's acrylic paint line and is intended for use as a base coat or mixing component to reduce gloss on other acrylic paints. The "Mini" designation refers to its compact bottle size, making it convenient for detail work or small projects.

Preparing for Application

Before using X-21 Flat Base Mini, ensure your model surface is clean and free of dust or grease. If you plan to thin the paint, use Tamiya acrylic thinner or water (though the catalog does not specify exact ratios). Shake the bottle well before use to ensure the pigment is evenly mixed. The paint is ready for brush or airbrush application, but no specific dilution instructions are provided by the catalog.

Basic Application Steps

Apply the paint in thin, even coats to avoid pooling or brush marks. Allow each coat to dry before applying the next. The catalog does not specify drying times, so test on a scrap surface first. For a uniform matte finish, two or three coats may be needed.

1. Shake the bottle: Mix the paint thoroughly to ensure consistent color and texture.
2. Apply the first coat: Use a brush or airbrush to apply a thin layer. Avoid overloading the brush.
3. Let dry and repeat: Allow the first coat to dry completely. Apply additional coats as needed.

Mixing with Other Acrylic Paints

X-21 Flat Base Mini can be mixed with other Tamiya acrylic paints to reduce their gloss and create a matte finish. The catalog does not provide specific mixing ratios, so start with a small amount of X-21 and test the result. This is useful for achieving a flat, non-reflective look on military models, dioramas, or scale figures.

Product Facts

• X-21 Flat Base Mini (Acrylic) 81521: Tamiya Acrylics X-21 FLAT BASE MINI, product type: Paint, original price $2.94. This confirms the product is a paint intended for creating a flat base, and its compact size suits small projects or mixing.

  

What the Catalog Does Not Tell You

The catalog does not include instructions for thinning ratios, drying times, or compatibility with non-Tamiya paints. It also does not specify whether the paint is safe for all plastic types. Always test on a spare part or inconspicuous area before applying to your final model. The absence of safety or toxicity warnings means you should use standard precautions for acrylic paints, such as working in a well-ventilated area.