The Best Spray Primer for Miniatures (2026)

Primer is the cheapest way to ruin an afternoon's assembly, and the cheapest way to save one. A good coat gives paint something to grip, sharpens every detail by a fraction, and can hand you a finished basecoat on a whole squad in ninety seconds. A bad one fills the detail you spent an evening cleaning up, or dries gritty and takes the model with it.

This is what actually separates the cans, which colour to prime in, and how to spray one so it works. Every product named links to a page with dated prices from every shop we track.

What actually matters in a primer

Grip, not colour. A primer's job is mechanical: a slightly toothy, chemically keyed layer that acrylic can bond to. Bare plastic and resin are smooth and often faintly greasy from the mould, and paint applied straight onto them shears off at the first handling. This is why "I just basecoat it" works until the day a model gets chipped.

A thin coat you can still see detail through. The commonest mistake is treating primer like paint and trying to get opaque coverage in one pass. Two light passes beat one heavy one every time, and the difference is visible on rivets, chainmail and faces.

Nozzle and pressure over brand loyalty. Most complaints about a primer are really complaints about how it came out of the can — spitting, spattering, or laying down so much material that the surface goes matte and rough. A wide, even fan at a sensible distance is most of the quality.

Can size, and what you actually pay per spray. Hobby aerosols cluster at 400ml; Colour Forge fill 500ml. That difference is worth checking on the product page rather than on the shelf, because the headline price and the price per millilitre do not rank the same way — and per-millilitre is the honest comparison between two cans doing the same job. Prices on this site are the latest we checked, so the Colour Forge spray chart and the Citadel colour chart will give you a recent answer rather than last year's.

Weather, and it is not a footnote. Aerosol primer is the one hobby product that genuinely fails in the wrong conditions, and no brand is immune. More on that below, because it is the single biggest cause of a "bad can".

Black, white, grey or coloured?

Black is the forgiving default. Shadows are already done, mistakes hide, and metallics and dark schemes go on quickly. The cost is luminosity: every bright colour over black needs more coats to sing, and yellows, oranges and pale skin can take three or four.

White is the opposite trade. Colours are at their brightest and cleanest over it, which is why display painters and anyone painting yellow, red or white armour reach for it — and every flaw in your assembly and every thin patch shows immediately.

Grey is the compromise most experienced painters settle on. It carries bright colours nearly as well as white and hides seams nearly as well as black, and it is the least emotionally involved surface to judge a mix against.

A coloured primer is a basecoat. This is the real shortcut and the reason the coloured spray ranges exist: if the army is going to be green, priming it green means the first brush stage is highlights, not coverage. On a hundred infantry that is not a small saving.

The main options, compared

Citadel (Games Workshop) is the default because it is on the shelf next to the models, and it is genuinely good: a fine, even coat and a nozzle that behaves. It is also the most expensive of the big four per millilitre, and the range is narrow — thirteen colours, of which the ones people actually queue for are Chaos Black, Corax White, Wraithbone and Grey Seer. Wraithbone in particular has no real equivalent elsewhere, which is why it stays in demand.

The Army Painter Colour Primer is the range that made coloured priming normal, and it is still the broadest: twenty-eight colours keyed to wargaming subjects rather than to a colour system, at a lower price per can than Citadel. The line's historic weakness was consistency between batches; the current Warpaints-era cans are much better, and the black, white and grey are as good a default as anything on this list.

Where Army Painter earn their place is the middle of the range — a primer that is already the army colour, matched by name to something you were going to paint anyway.

Vallejo Surface Primer is the odd one out and the one to understand properly: it is a brush-on and airbrush primer in a bottle, not an aerosol. If you own an airbrush it is the best primer on this page — total control, no weather dependency, no overspray, and you can prime indoors in February. If you do not, it is a slow way to prime a horde, and you should buy a can.

Vallejo's coloured surface primers lean military rather than fantasy, which suits historicals and vehicles particularly well.

The Colour Forge are a small UK maker who do only this: aerosol primer, one format, 500ml cans, thirty-eight colours. The range is unusually deep in the shades wargamers actually want — several distinct greens, a proper bone, three metallics — and the cans are noticeably larger than the hobby standard. They are worth knowing about specifically if you prime in colour, because the palette is wider than Citadel's and the can is bigger than everyone's.

Priming in colour: the shortcut that actually saves time

The case for a coloured primer is arithmetic. Two thin coats of a colour by brush, over fifty models, is an evening. The same colour out of a can is a few minutes and a better surface. It only works if the can is close enough to the colour you wanted that you never have to correct it — which is why the choice matters more than it looks.

The greens are the clearest example. A dark, muted green for power armour, a light green for orcs and goblins, and a verdigris-leaning green for something colder are three different jobs, and most ranges give you one of them.

Bones, sands and ochres are the other place a coloured primer earns its keep, because they are slow and fiddly to build by brush over a dark undercoat.

And metallic primers are a genuine time saver on anything that is mostly armour plate or mostly rust, where the alternative is a full drybrushed metal layer.

The spray and the pot: which primer stands in for which Citadel spray

This is the question people actually arrive with — what is the Colour Forge equivalent of Wraithbone? — and it needs answering carefully, because there are two very different kinds of answer and only one of them is a manufacturer's.

What the maker themselves claim: two colours, and that is all

The Colour Forge state a Citadel-family comparison for exactly two of their thirty-eight colours, in their own product copy:

The first is a real colour-match claim from the people who mixed the paint. The second is deliberately softer, and it is about a discontinued colour, so it cannot be a "buy this instead" — there is nothing on sale to buy instead of.

For everything else — including Wraithbone, Grey Seer and Chaos Black, which is where most of the searching happens — no maker states an equivalent. We checked: the whole product range was read for the words equivalent, comparable, match, similar, alternative, substitute and instead of, and for seventeen Citadel spray colour names. Zero results. So anything you see pairing Colour Forge cans to Citadel sprays is somebody's inference, and it might be a good one, but it is not the manufacturer's.

What we can offer instead: our own measurement, labelled as ours

We hold a colour value for all thirteen Citadel sprays and all thirty-eight Colour Forge cans, and we run a colour-distance comparison across the whole catalogue. So rather than repeat an equivalence nobody has published, here is our measurement — each Citadel spray's nearest Colour Forge can, by CIEDE2000 distance. This is a measurement of published colour values, not of sprayed paint, and it is our claim rather than either maker's.

Four things about that table are worth saying out loud, because a comparison you cannot audit is worth very little:

• Chaos Black, Corax White and White Scar are missing on purpose. Our colour values for those three are the nominal #000000 and #FFFFFF rather than a measured swatch. Two placeholder blacks agree perfectly, which looks like a triumph and means nothing at all. Colour Forge's Matt Black and Matt White are the obvious answers and no measurement was needed to say so.
• Retributor Armour's nearest match is a sand, not a gold. That is the honest output and it is a warning about the method: colour distance does not know about metallic flake. A gold primer and a sand primer can be near neighbours as flat colours and behave nothing alike on a model. Read the two metallic rows as "similar hue", never as substitutes.
• The last row is not a match. Mechanicus Standard Grey is a much darker grey than Colour Forge's Standard Grey, and 11.6 is the distance at which two colours are merely related. It is in the table because leaving it out would have made the table look better than the data is.
• Our measurement agrees with the maker where we can check it. Reliquary Red against Citadel's Khorne Red pot measures 2.7 — very close, and Khorne Red is one of the two nearest Citadel colours to it out of four hundred. That is the maker's own claim, independently reproduced, which is the only reason to trust the rest of the column. The Kobalos Green claim we cannot check, because our value for the discontinued Goblin Green has no recorded source.

Rattle can or airbrush?

If you prime more than a handful of models a month and have anywhere to work, an airbrush changes this decision entirely. Bottled primer through an airbrush gives a thinner, more controlled coat than any aerosol, works in any weather, and costs far less per model. The trade is setup, cleanup, and a real learning curve.

Aerosol wins on speed for a whole unit at once, on not needing a compressor, and on being available in the shop you are already standing in. Most painters end up with both: a can for batch priming, a bottle for touch-ups, resin, and priming indoors in winter.

How to spray one properly

Most "bad primer" is a spraying problem, and all of it is avoidable.

1. Wash the models first if they are resin, and consider it for plastic. Warm water, a drop of washing-up liquid, an old toothbrush, and a full day to dry. Mould release agent is the single most common cause of primer that never quite keys.
2. Check the weather honestly. Cold makes the propellant lay down a rough, sandy surface; humidity above roughly 70% makes primer dry as a white bloom or a fine fuzz. Between about 15 and 25°C on a dry day is the window. This is not brand-dependent and no can is immune.
3. Shake it for a full minute after you first hear the ball rattle freely, not before. Then shake it again halfway through.
4. Warm the can in a pocket or a bowl of hand-hot water — never anything hotter, and never near a heat source. A cold can sprays badly even on a mild day.
5. Test on the sprue. Every time. One second of spray onto a piece of frame tells you whether the nozzle is clear and the mix is right before you point it at forty models.
6. Stand off about 20-30cm and keep moving. Start the spray beside the model, pass across it, and release after you have passed it. Never start or stop on the model itself.
7. Two or three light passes, from different angles, with a minute between. You want to still see detail through the first coat.
8. Invert and clear the nozzle for two seconds when you finish, or the next session begins with a blocked can.
9. Leave it overnight before painting. Primer is touch-dry in minutes and properly cured much later, and paint applied onto a half-cured coat is what lifts under masking tape.

What to buy

If you are buying one can and want to think about it no further: a grey or a black from Citadel or Army Painter. Both are reliable, both are everywhere, and grey is the surface that argues with you least.

If you are priming a whole army in one colour: buy a coloured primer in that colour and skip a brush stage entirely. Army Painter have the widest name-matched selection for Warhammer subjects and Colour Forge have the deeper palette and the larger can — check both product pages for today's price per millilitre, because that is the comparison that decides it.

If you own an airbrush, or you paint resin, or you have nowhere outdoors to spray: Vallejo Surface Primer in black, white and grey, and you can stop reading buying guides about aerosols.

If you want the brightest possible colours: white, and accept the extra care. If you want an army finished this month: grey or a colour, and do not agonise over it — the primer nobody notices is the one that worked.