The definitive miniature varnish guide every painter needs 🎨

Hey there, makers! Mr Resin here. Today we're going to cover a topic that many people, especially beginners, tend to skip — but it's the true secret of the pros: miniature varnish. Think of it as the ultimate shield that protects all your artwork, whether printed with your photopolymer resins or carefully painted.

What is miniature varnish and why is it essential?

Did you think you were done after that last brushstroke? Not even close! Varnishing is like giving your hero their legendary armor — that final coat that's going to defend all those hard-earned hours against scuffs, airborne dust, and the inevitable greasy fingers during a wargame session.

But miniature varnish is so much more than a simple protective coat. It's a seriously powerful creative tool that can completely transform the final look of your figure.

Speaking from experience: a good varnish job is what sets apart a miniature that's "nicely painted" from one that looks like it came straight out of a professional illustration. It's the master touch that unifies all the work and gives it an incredible coherence.

More than just a protective shield

Varnish isn't just a transparent barrier and nothing more. Its functions are key to achieving a top-notch finish:

• Unifies finishes: Ever noticed that some paints are shinier than others? Varnish evens out those differences, giving the entire miniature a uniform, professional look. Say goodbye to that "patchwork" effect.
• Kills unwanted shine: Sometimes inks or washes leave a satin or glossy finish that looks terrible on a fabric cloak or skin. One coat of matte varnish and the problem is solved.
• Adds creative effects: This is where things get fun. You can play with different types of varnish to achieve visual effects. A gloss varnish is pure gold for simulating gems, fresh blood, monster slime, or gleaming metal armor.
• Increases durability: If you're someone who actually plays with their minis, this is non-negotiable. Varnish protects them from the wear and tear of constant handling, preventing the paint from chipping or scratching with even the slightest contact.

Whether you paint bought figures or bring to life the ones you print, this step is essential. In this complete guide, I'm going to share everything I've learned over the years — the types of varnish available and how to apply them so your minis go from looking good to looking spectacular. And if you want to cut straight to the point, take a look at my selection of recommended modelling varnishes. I've got you covered! 😉

Understanding varnish finishes: matte, satin, and gloss

Alright, let's get down to business, because not all miniature varnishes are created equal. The most important difference — and what's really going to define the final look of your figure — is the finish. We can group them into three main families: matte, satin, and gloss.

Think of it like choosing the final texture of a freshly forged suit of armor in your workshop. Each finish has a very specific mission and purpose, and knowing when to use each one will give you absolute creative control over your pieces.

The matte finish: the king of realism

The matte varnish is, without a doubt, my choice for 90% of the miniatures I paint, especially if they're going to see action on a battlefield in wargames. Its superpower is simple but brutal: it completely eliminates any type of reflection from the surface.

This is key to achieving a hyper-realistic look in materials that, in real life, don't shine. I'm talking about fabric, worn leather, skin, wood, or stone. By applying a coat of matte varnish, the colors look pure, without distractions, and the figure gains brutal credibility. It's the undisputed champion of realism.

The gloss finish: the effect creator

At the complete opposite end of the spectrum we have the gloss varnish. This one doesn't aim for realism — quite the opposite; it's a visual effect generator that can leave people speechless. Want something to look wet, liquid, made of glass, or radiating magic? This is your varnish.

From experience, I can tell you the trick lies in precision. Use it only where it belongs. An entire suit of armor with gloss varnish can look like a plastic toy, but a touch on the eyes, on a gem, or to simulate fresh blood or the drool of a disgusting monster… that changes everything.

For these specific details, I recommend keeping a good permanent gloss varnish on hand — the kind you can apply with a brush for millimeter-precise control.

The satin finish: the perfect balance

And somewhere in between, we find the satin varnish, a true all-rounder. This finish provides a subtle and elegant silky sheen, without reaching mirror-like levels like the gloss, but adding far more life than a flat matte.

It's the ideal option for materials that have a natural luster, but without going overboard. Think, for example, of:

• Well-worn armor: A satin finish gives that feeling of well-traveled yet well-maintained metal.
• Living skin: It adds a healthy touch to the skin of your characters, avoiding the dusty look of matte or the sweaty look of gloss.
• Treated leathers: It's perfect for straps, boots, or gloves that have been polished and maintained.

To make it even clearer, here's a quick cheat sheet to help you decide.

Quick varnish finish comparison

Use this table as a cheat sheet to decide which finish to use based on the effect you're looking for on your miniature.

As you can see, each one has its moment and place. Mastering all three finishes is what will allow you to take your miniatures to the next level.

And one final note. Beyond the finish, the varnish base (acrylic, enamel, lacquer) also matters, especially when it comes to compatibility. My golden rule is that if you paint with acrylics, use acrylic varnishes. They are the easiest to use, clean up with water, and are the safest option for your paint layers. Save yourself the hassle!

Spray or brush application: which one to choose

Ah, the eternal question. The one that sparks debates in forums and WhatsApp groups. Spray varnish for miniatures or brush-on varnish? The short answer is that you don't have to pick a side. The long answer — the one that will truly serve you — is knowing when to use each tool.

If you're looking for speed, spray is your superpower. Need to varnish an entire army before the next tournament? The aerosol is, without a doubt, your best ally. In just a few minutes you have dozens of figures protected with a uniform coat that would be impossible to achieve by hand in that time. It's the perfect solution for applying a matte finish to a full regiment.

But be careful, because spray has its fine print. You need a well-ventilated space (and trust me, you'll want to cover everything that shouldn't end up varnished) and you become a slave to the weather forecast. A day with too much humidity is the perfect recipe for disaster, summoning the dreaded frosting that will leave your minis looking whitish and ruined. And if you don't get the distance right, you can end up "dusting" the figure with dried varnish particles, giving it an undesirable grainy texture.

The surgical control of the brush

In the other corner of the ring we have the brush, which gives you almost surgical control. Personally, it's my go-to method for display pieces or when I'm looking for millimeter-precise accuracy.

There's nothing like a brush for applying different finishes on the same miniature. Want your knight's armor to be satin, his fabric cloak completely matte, and the edge of his metal sword to have a blinding shine? With a brush you can do it without contaminating one area with another's finish. It's a whole other level of detail.

The golden trick with the brush is to always thin the varnish slightly. A tiny drop of water or acrylic thinner works wonders. It helps the varnish self-level, eliminates brushstroke marks, and allows you to apply ultra-thin coats. Remember the mantra: always two thin coats, never one thick and pasty one.

My experience tells me that the best thing is not to choose, but to combine. Don't marry one method. Use both tools to your advantage and you'll master the game!

Let me tell you my usual workflow, the one that never fails:

1. Base coat with spray: First, I apply a general coat of satin varnish (my favourite to start with) or matte to the whole troop. This gives me quick and solid protection to work on top of.
2. Detail work with brushes: Once the spray is completely dry, I go back in with the brush and pot varnishes. I apply a touch of gloss varnish on gems or visors, reinforce the matte on skin or fabric, and add a satin touch to leathers.

As you can see, there is no absolute winner. Spray and brush are not enemies — they are two different weapons in your painting arsenal. Learn to master both and you'll know exactly which one to draw when you need each project to shine in its own right.

How to apply varnish step by step without ruining your miniature

Come on, take a deep breath. I know varnishing can feel a bit daunting, but I promise it's much simpler than it seems if you follow the right order. I've seen people more afraid of this step than of painting a figure's eyes, and honestly, it's not that big a deal. I'm going to guide you so it comes out perfectly!

First things first, the golden rule you cannot skip under any circumstances: the paint must be 100% dry. And I don't mean "dry to the touch" — no. I mean completely cured.

For me, as a rule, I never varnish anything until at least 24 hours have passed since the last brushstroke. Rushing here only leads to trouble and reactivated paint that turns into a disaster. Trust me, you don't want to go through that.

Once you're certain everything is cured, it's time to prepare the varnish. This step is vital, especially if you're using one with a matte finish.

Preparation and brush application

If you choose the brush for maximum control, the ritual is simple but it needs to be done properly.

1. Shake the pot like your life depends on it. Seriously. Matte varnishes contain agents that settle at the bottom, and if you don't mix it thoroughly, you'll be applying a liquid that is anything but matte. Give that wrist a good workout!
2. Thin the varnish just a little. My magic ratio, the one that never fails, is one drop of varnish to one drop of water or acrylic thinner. This makes it flow beautifully, self-level, and leave no trace of brushstrokes.
3. Apply a thin, even coat. Less is always more! Load a small amount onto the brush and spread it gently, without letting pools form in the recesses. It is a thousand times better to apply two thin coats than one thick coat that swallows all the details you worked so hard to paint.
4. Let it dry completely between coats. No rushing. Give it a few hours for the first coat to settle properly before thinking about a second one, if you even need it.

A veteran trick I use constantly: if you're after an ultra-matte finish that is also bombproof, try this. First, apply a coat of satin varnish (which tends to be more durable). Once it's dry, apply the final coat with matte varnish only. The result is professional — I guarantee it.

Tips for spray application

If you prefer the speed of spray, the technique changes a little, but patience is still your best ally. Be careful, because the preparation beforehand is just as important, something I already mentioned in my guide on miniature priming. A good varnishing always starts with a good base.

• Safe distance: Position yourself about 20-30 cm away from the miniature. If you get too close, you'll drench it in varnish. If you move too far away, the particles will dry in the air and leave you with a dusty, whitish finish — the dreaded frosting.
• Short bursts and keep moving: Never keep your finger pressed down pointing at a fixed spot. Use short bursts while moving your hand from side to side, sweeping across the figure.
• Environmental conditions matter: A lot! Avoid varnishing at all costs on days with high humidity or bitter cold. That's the perfect recipe for the varnish turning whitish and ruining your work.

If you follow these tips, I promise that varnishing will go from being the "final boss" to being that finishing touch your miniatures deserve. Now go protect that art! 🚀

Common varnishing mistakes and how to fix them

I've seen with my own eyes how spectacular miniatures get ruined at the very last moment. Don't let it happen to you! Varnishing seems easy, but it has its pitfalls, and if you're not careful, it's easy to fall into them. I'm going to tell you about the most typical mistakes — the ones even I make when I'm in a rush — and how to fix them.

Trust me, after hours straining your eyes over the details, the last thing you want is for everything to fall apart at the last minute. The good news is that all these disasters can be avoided with a little patience and by following a few golden rules.

The dreaded 'frosting' or whitish haze

This is, without a doubt, the miniature painter's apocalypse. The mistake that makes your blood run cold. Suddenly, your masterpiece gets covered in a whitish, dusty layer that dulls the colors and gives it a dreadful appearance.

• Why does it happen? The cause is almost always the same: spraying varnish on a day with too much humidity or cold. The varnish particles dry in the air before reaching the figure, creating that sort of solid, translucent haze.
• Can it be fixed? Don't panic! Sometimes it can be fixed. Try applying a very thin coat of gloss varnish directly to the affected area. The gloss can optically "fill in" those microparticles and restore transparency. Once it dries, if you want, you can apply another coat of matte varnish to remove the extra shine.
• How do I avoid it? Prevention is a thousand times better than a cure. Always check the weather forecast. If humidity is above 65% or it's bitterly cold, put the spray away. It's simply not the day for it. Wait for the sun to come out and the air to be drier.

The matte varnish that shines like a disco ball

This is one of those mistakes that drives you up the wall. You buy an "ultra matte" varnish, apply it with all the excitement in the world and... the mini ends up with a satin shine you never wanted (no pun intended).

I'm telling you from experience: 99% of the time this happens for one single reason. You haven't shaken the bottle enough. The matting agents (the ones that remove shine) are denser and settle at the bottom. If you don't mix them back in properly, what you're applying is the base of the varnish, which is naturally glossy.

Shake that bottle like your life depends on it. Give it a good minute of solid shaking, no kidding. You need to hear that mixing ball rattling around in there!

Layers that are too thick and other disasters

Slapping on a big glob of varnish all at once is a terrible idea. It only causes problems that will leave your miniature looking like a mess:

• Bubbles: Thick varnish traps air and leaves tiny little bubbles on the surface that won't go away.
• Brush strokes: If you apply it with a brush without thinning it, the bristles will leave grooves that won't level out on their own.
• Loss of detail: A thick coat is like a flood. It seeps into every nook and cranny and buries all those tiny details you worked so hard to paint.
• Plastic-like finish: Too much varnish creates an artificial, thick effect, as if you had wrapped the figure in plastic.

Burn this golden rule into your brain: it's always better to apply two or three very thin coats than a single thick one. In this final stretch, patience is your best mate. The market for paints and varnishes is enormous — in fact, in Spain it moved 735 million euros in 2024, so you'll never be short of options to find the ideal product and apply it like a professional. If you're curious about the economic side of the hobby, you can find out more about the figures behind this industry.

Common questions about varnish: straight to the point!

To top it all off, I've compiled the questions you ask me most about miniature varnish. These are direct, no-nonsense answers so you won't have a single doubt left and you can go ahead and protect your creations like a professional. Let's get into it!

Can you paint over varnish?

Absolutely! In fact, it's a pro trick that will change your life. Many painters use it as a kind of "save point" in their work.

Think of it like a checkpoint in a video game. You apply a coat of varnish and, if you mess up what you paint afterwards (a risky lighting effect, a tattoo, some blood...), you can wipe it away with a cotton swab and a bit of isopropyl alcohol. Everything underneath — the paintwork you put so much effort into — will be safe. It's a real lifesaver!

How often do I need to re-varnish a miniature?

The answer here is: it depends. How much wear and tear the figure is going to get is everything.

• For gaming: If your minis are going to hit the gaming table often, and especially if they're going to be passed from hand to hand, it doesn't hurt to give them a touch-up. A reinforcement coat once a year is a good habit if you're putting them through their paces.
• For display: If your masterpiece is going to live in a display case, well protected, a single solid first coat is more than enough. Its only enemy will be dust, and there are other methods to deal with that.

Help! My varnish has gone cloudy or frosty

Stay calm, don't panic. It's happened to almost all of us at some point and it can often be fixed! That whitish haze, known in the hobby world as frosting, is the nightmare of any painter, but let's try a rescue mission.

The trick is to carefully apply a thin coat of gloss varnish directly over the affected area. Gloss varnish can optically "fill in" those micro-cracks that cause the whitish effect, restoring transparency and bringing back the original colours as if by magic.

Once dry, if the reflective finish doesn't convince you, you can apply a new coat of matte varnish on top to recover the look you were going for. It's a technique that has saved more than one of my minis from the box of shame!

Conclusion: Varnish is not optional — it's the final boss!

And that's everything, team! As you've seen, miniature varnish is not a simple final step — it's an incredibly powerful creative tool and the best life insurance for your creations. Mastering matte, satin, and gloss finishes, and knowing when to use spray or brush, is what will truly take your minis to the next level.

So lose your fear of it, experiment, and protect those hours of work. Now that you have all the theory, it's time to take action! If you need top-quality supplies, head over to the store and take a look at the modelling varnishes I've selected for you. Let's get varnishing!