Last updated: August 23, 2026
The airbrush gets all the attention, but the paint decides more of your result than the brush does. A modest brush spraying properly thinned paint at the right pressure will outperform an expensive one loaded with something too thick, every time, and most first sessions go wrong at the bottle rather than at the trigger.
The confusing part is that airbrush paint is not one category. There is paint sold ready to spray, paint that expects you to thin it, and paint from a completely different corner of the hobby that happens to fit in the cup. This guide sorts out which is which and what belongs in your brush.
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Quick Answer
What paint should you put in an airbrush?
- Miniatures and most models: water based acrylic made for airbrushes, thinned to the consistency of milk.
- Ready to spray ranges exist and are the easiest start, but you will still adjust some colors.
- Scale models wanting a hard glossy shell: lacquer, with the ventilation the maker’s safety data sheet asks for.
- Ordinary craft acrylic can work, but it is the fussiest option and needs the most thinning.
Bottom line: pick a paint family first, then buy the matching thinner. Mixing families is where trouble starts.
What Makes a Paint an Airbrush Paint
Two things: how finely the pigment is ground, and how thin the paint is out of the bottle. An airbrush pushes paint through an opening measured in fractions of a millimeter, so coarse pigment settles and blocks it, and thick binder does the same. Ranges sold for airbrushes are milled finer and formulated thinner.
That is the whole difference. It is not a magic formula, which is why regular model acrylic can be airbrushed once it is thinned and sometimes filtered. It just means the dedicated ranges save you a step and fail less often.
Water Based Acrylics: the Default
For miniatures, terrain and most model work, water based acrylic is the right answer. It cleans up with water and a mild cleaner, it does not fill your room with solvent, and the dedicated airbrush ranges spray with very little preparation. This is what the overwhelming majority of hobby painters use for everything.
The trade is durability and finish hardness. Acrylic is softer than lacquer, so it wants a topcoat if the model will be handled, and it can lift under masking tape if it has not fully cured. Neither is a real obstacle for miniatures that live on a shelf or a table.
Ready to Spray Ranges
Some ranges are formulated to go straight from bottle to cup. Citadel says its Air range comes pre thinned for airbrush use, and Vallejo positions Model Air the same way. In practice most painters still add a little thinner to some colors, because pigment heavy shades behave differently to translucent ones.
Lacquer: Harder Finish, Stricter Handling
Lacquer based hobby paints spray beautifully, level almost by themselves and cure to a hard shell that takes masking tape without complaint. That is why scale modelers building aircraft and armor keep using them long after miniature painters moved to acrylic.
The cost is handling. These products and their thinners carry solvent warnings, and the ventilation and protective equipment you need are set out on the manufacturer’s safety data sheet for the specific product. Read that sheet before you buy, not after, and treat it as the deciding factor if you paint indoors on the kitchen table.
What Lacquer Does to Your Brush
Some seals do not tolerate strong solvents. If you move to lacquer, check what your airbrush seals are made of and expect to replace them more often. Our comparison of lacquer against acrylic covers the whole trade including the cleaning side.
Enamel and Where It Still Fits
Enamel is the third family, and it has largely retreated to weathering and detail work rather than whole model coats. It flows well, it stays workable for a long time, and that slow drying is exactly what you want for panel washes and filters and exactly what you do not want when spraying an entire fuselage.
If you spray it, it needs its own thinner and the same ventilation discipline as lacquer, again per the safety data sheet for the product. For most people reading this, enamel is something you brush on top of an airbrushed acrylic base rather than something you load into the cup.
The Paint Families Side by Side
One table, one decision. Pick the row that matches what you build and how you can ventilate, then buy the thinner from the same family.
| Family | Thin it with | Suits | Main drawback |
|---|---|---|---|
| Airbrush acrylic | Matching airbrush thinner | Miniatures, terrain, most models | Softer finish, wants a topcoat |
| Ready to spray acrylic | Little or nothing | Beginners, priming and basecoating | Some colors still need adjusting |
| Lacquer | Brand lacquer thinner | Aircraft, armor, gloss finishes | Solvent handling per the safety data sheet |
| Craft or model acrylic | Airbrush thinner, sometimes filtering | Terrain, large areas, cheap experiments | Coarser pigment, clogs more often |
Thinning Is Not Optional
Even ready to spray paint gets adjusted sometimes, and everything else always does. The target most painters describe is the consistency of milk: it should run off a stirrer in a thin unbroken stream rather than dripping in blobs. Too thick gives you spatter and tip dry, too thin gives you runs and spider webbing.
Use the thinner made for your paint family rather than water where you can. Water dilutes the binder as well as the pigment, which weakens adhesion, while a proper thinner keeps the film intact. Our guide to thinning acrylic paint for an airbrush walks through the ratios and what each mistake looks like on the model.
Frequently Asked Questions
Can I use regular acrylic paint in an airbrush? Often yes, with enough thinning and sometimes a strain through a fine filter. Craft acrylic has coarser pigment and more binder, so it blocks small nozzles more readily. Our article on how airbrush paint differs from ordinary acrylic covers when it is worth the trouble.
Do I need to thin paint that says it is ready for airbrush? Usually not for priming and basecoating, but expect to adjust some colors. Heavily pigmented shades and metallics tend to run thicker in every range, and a couple of drops of thinner solves it.
What pressure should I spray acrylic at? Most miniature painters work in the low twenties for general coats and drop lower for fine work. If the paint spatters, the usual cause is that it is too thick rather than that the pressure is wrong, so thin first and then adjust.
Can I mix brands of paint? Within the same family, generally yes, and most painters do. Across families, no: do not mix lacquer with water based acrylic in the cup. Use the thinner that belongs to the paint you are spraying rather than whichever bottle is nearest.
Why does paint dry on the tip of my needle? Because the paint is drying faster than you are spraying it, which happens with thin films at the tip and gets worse in a dry warm room. A retarder or a flow improver slows it, and higher thinning ratios help. It is the single most common annoyance in the hobby.
The Bottom Line
Choose the family first. Water based airbrush acrylic covers miniatures and most models with the least fuss, lacquer earns its place on scale models that want a hard glossy shell provided you can meet the ventilation the safety data sheet calls for, and enamel has become a weathering paint rather than a spraying one. Then buy the matching thinner, aim for milk consistency, and most of the problems people blame on their airbrush never appear. Read next: paint sets for miniatures and choosing an airbrush primer.