Quick answer

Enamel thinner is used to thin enamel paints for brushing or airbrushing, clean brushes and airbrush parts, and improve paint flow and leveling. Tamiya X-20 Enamel Thinner is the recommended solvent for Tamiya enamel paints and panel line accent colors.

Why use a dedicated thinner instead of generic solvents?

Generic thinners like mineral spirits or hardware-store paint thinner can work in a pinch, but they often contain additives or inconsistent evaporation rates that affect the final finish. A dedicated enamel thinner like Tamiya X-20 is formulated to match the specific resin and pigment load of Tamiya enamel paints, giving you predictable drying time, smooth leveling, and minimal brush marks.

Using the wrong thinner can cause the paint to dry too fast (leading to orange peel or tip dry in airbrushes) or too slow (attracting dust and prolonging handling). For critical work like panel line washes or fine detail painting, the right thinner makes a visible difference.

Can you use enamel thinner for other types of paint?

Enamel thinner is designed for oil-based enamel paints only. It will not work with acrylics, lacquers, or water-based paints—in fact, it can ruin them by causing curdling or poor adhesion. Always check the paint label before mixing. If you are switching between paint types, clean your airbrush thoroughly with the appropriate thinner for each type.

Frequently asked questions about enamel thinner

How do I thin enamel paint for brush painting?

Mix enamel paint with Tamiya X-20 Enamel Thinner in a 2:1 ratio (paint to thinner) as a starting point. Stir gently until the paint flows like milk. Adjust by adding thinner drop by drop if the paint feels stiff. The slow drying time of enamel helps the paint self-level, reducing brush strokes. Test on a scrap piece first—thinner paint needs more coats but gives a smoother finish.

How do I thin enamel paint for airbrushing?

Start with a 1:1 ratio of paint to thinner. Add thinner gradually until the mixture flows freely through the airbrush without sputtering. Aim for a consistency similar to skim milk. Use a few drops of thinner between color changes to flush the airbrush cup and nozzle. Thin in small batches—enamel paint dries slowly in the cup but can still clog if left too thick.

How do I clean brushes and airbrushes with enamel thinner?

For brushes: dip the bristles in a small container of Tamiya X-20 and swirl gently. Wipe on a paper towel, repeating until no paint residue remains. For airbrushes: fill the cup with thinner, spray through until clear, then disassemble and soak metal parts for 10–15 minutes. Do not soak rubber seals or O-rings. Always clean tools immediately after use—dried enamel paint is much harder to remove.

Can I use enamel thinner for panel line accent colors?

Yes. Tamiya Panel Line Accent Color is an enamel-based wash. Use Tamiya X-20 Enamel Thinner to clean up excess wash from panel lines or to dilute the accent color for a lighter effect. Apply a small amount to a cotton swab or brush and gently wipe away the excess after the wash has dried for 15–30 minutes. Work in a well-ventilated area—enamel thinner fumes are strong.

Product fact

  • Tamiya X-20 Enamel Thinner 250ml 80040: Tamiya X-20 Enamel Thinner is a solvent for enamel paint used for dilution, wiping, washing, and care of tools. This means one bottle handles thinning, brush cleaning, airbrush flushing, and panel line cleanup, making it a versatile essential tool for any enamel painter.

    Tamiya X-20 Enamel Thinner 250ml 80040

    Tamiya X-20 Enamel Thinner 250ml 80040