Quick answer: Liquitex Matte Medium is a fluid acrylic binder with a matting agent added. It is used for five main jobs: thinning acrylic paint without weakening it, making paint more transparent for glazes, reducing or removing the shine from acrylic colors, gluing paper and fabric in collage and decoupage, and sealing porous surfaces such as paper, wood, and fabric before painting. It dries to a non-reflective, translucent film in about 20 to 30 minutes for thin coats and is compatible with any acrylic paint.
Anyone asking what is Liquitex matte medium used for has usually seen it recommended for something specific, often collage or sealing, and wants to know whether the same bottle does anything else. It does. Matte medium is one of the most versatile liquids in an acrylic painter’s kit precisely because it is so plain: binder, water, and a flattening agent. That simplicity is what lets it move between painting, mixed media, and craft work without changing products.
This explainer defines the product, explains how the matting agent changes its behavior compared with gloss medium, then takes each use in turn with proportions and drying notes. A comparison table against neighboring Liquitex products follows, along with the limits of what matte medium can do. Liquitex is not the only brand with a matte medium, and the differences between brands come up often; the comparison of Liquitex and Golden acrylics and which line fits different painters covers how the two companies’ paints and mediums differ.
What matte medium is made of
Acrylic paint is a suspension of pigment in an acrylic polymer emulsion. Remove the pigment and you have a medium. Liquitex Gloss Medium is essentially that: clear binder that dries to a shiny film. Matte Medium takes the same binder and adds a matting agent, typically a very fine silica or similar particle, which scatters light at the dried surface so it no longer reflects like glass.
Three consequences follow:
- It is slightly less clear than gloss. The particles that scatter light also make the dried film faintly translucent rather than perfectly transparent. In thin layers this is invisible; in thick layers or over black it can look softly frosted.
- It has a bit more body. Matte medium is a touch thicker than gloss medium, with a consistency closer to cream than milk.
- It accepts drawing media. A dried matte medium surface has a fine tooth. Pencil, charcoal, and pastel grip it; they slide off gloss.
Because it is the same binder as the paint, there is no limit on how much can be mixed in. Adding matte medium never produces an underbound, chalky film the way adding too much water does.
Use 1: Thinning acrylic paint safely
Acrylic paint can be thinned with water only so far. Past roughly a quarter to a third water by volume, the pigment particles are no longer held in enough binder to form a sound film, and the dried paint can be dull, weak, and easy to lift. Matte medium thins paint while keeping the binder-to-pigment ratio healthy.
Working proportions:
- Slight loosening (easier brushing, fewer ridges): 1 part medium to 4 parts paint.
- Noticeably fluid (for flat areas, washes on gesso): 1 part medium to 1 part paint.
- Very fluid and translucent: 2 to 4 parts medium to 1 part paint.
Mix with a palette knife until uniform. Unmixed streaks of medium dry as flat translucent patches in the color.
Use 2: Glazing and transparency
A glaze is a thin, transparent layer of color over a dry layer that shifts the hue beneath without covering it. Matte medium makes any acrylic color transparent enough to glaze. The usual ratio runs from 3 parts medium to 1 part paint for a strong glaze, up to 10 to 1 for a faint veil.
Where matte medium differs from glazing medium or gloss medium is the finish. Gloss glazes deepen and saturate the colors underneath; matte glazes keep the surface flat and can slightly lighten very dark areas because of light scattering. Painters who want the whole surface to stay matte use matte medium throughout. Those who want glazes to glow often prefer gloss for glazing and reserve matte medium for other jobs.
Glazes should be brushed on thinly and allowed to dry (15 to 30 minutes) before the next. Three or four matte glazes over black can begin to look cloudy; keep glaze counts low over very dark grounds or switch to gloss there.
Use 3: Reducing shine
Acrylic colors vary in natural sheen. Earth colors and those with lots of filler dry fairly flat; many modern synthetic organic pigments dry glossy. A painting that mixes them can look patchy under lights.
Two approaches use matte medium to fix this:
- Mix it into every color at about 1 part medium to 3 or 4 parts paint. All colors then dry to a similar low sheen.
- Brush a thin coat over the finished, dry painting as a unifying layer. One even coat flattens the surface; a second deepens the matte effect. This layer is permanent and not a removable varnish.
Matte medium is not quite as flat as Liquitex Ultra Matte Medium or Matte Varnish, but it sits between gloss and dead-flat, which many painters find the most natural-looking finish.
Use 4: Collage and decoupage adhesive
This is the use most non-painters know. Matte medium works as a strong, flexible, archival glue for paper, tissue, fabric, photographs, and lightweight found objects on canvas, wood, or paper.
Method:
- Brush a thin, even coat of matte medium onto the support where the element will go.
- Brush a thin coat on the back of the paper or fabric as well. Coating both sides reduces bubbles.
- Lay the piece down and press from the center outward with a brayer, a bone folder, or the side of your hand to push out air and excess medium.
- Wipe away medium that squeezes out at the edges.
- Once dry (30 to 60 minutes), brush a thin sealing coat of matte medium over the top. This locks the edges and lets you paint over the collage.
Notes that save frustration: thin papers (tissue, newsprint, magazine pages) wrinkle if the medium is applied heavily, so use a light coat and work fast. Inkjet prints can smear; test a corner, or spray-fix them first. Matte medium is water-based and will reactivate water-soluble inks and some markers. Heavier materials such as cardboard or thin wood need gel medium instead.
Decoupage on furniture or boxes follows the same method, with a final two or three coats of matte medium as a protective finish. For items that will be handled a lot, a proper varnish on top is tougher.
Use 5: Sealing and priming surfaces
Raw paper, unprimed canvas, wood, cardboard, and fabric all absorb paint unevenly. A coat of matte medium seals the surface so paint sits on top instead of soaking in, and it does so without adding the white color of gesso.
- Paper and sketchbooks: one thin coat makes thin paper suitable for acrylic without buckling as badly. Let it dry fully; a second coat gives more protection.
- Wood panels and plywood: two coats, sanded lightly between, seal the grain and reduce the yellowing that raw wood can cause in overlying paint. Use clear gesso or gesso if you want tooth or a white ground.
- Fabric: brush a diluted coat (1 part medium to 1 part water) onto fabric before painting to reduce bleeding and feathering. Heat-set the finished work if it will be washed.
- Photographs and prints: a coat of matte medium protects the surface and gives it a tooth that accepts paint, making it a common step in mixed media work.
Matte medium is not a substitute for gesso when you need opacity or a bright white ground, and it does not provide the tooth that oil paint needs. It is a clear sealer, not a primer in the full sense.
Use 6: Image transfer
A related mixed-media technique: brush a generous coat of matte medium onto a surface, press a laser print or photocopy (not inkjet) face down into it, let it dry overnight, then dampen the paper and rub it away with a fingertip. The toner remains bonded in the medium, giving a soft, slightly distressed image. Gel medium gives a stronger transfer; matte medium gives a more delicate one with a flat finish.
Use 7: Ground for drawing
Because the dried film has tooth, a layer of matte medium over a painting or a colored ground lets you draw into it with graphite, colored pencil, or pastel. The drawing can then be sealed with another thin coat. This makes matte medium useful for mixed media artists who alternate between paint and dry media on the same piece.
How matte medium compares with neighboring Liquitex products
| Product | Finish | Body | Clarity when dry | Best for | Not ideal for |
|---|---|---|---|---|---|
| Matte Medium | Matte | Fluid, creamy | Translucent | Thinning, collage, sealing, flattening sheen, drawing ground | Glowing glazes over dark colors; heavy collage |
| Gloss Medium & Varnish | Gloss | Fluid, thin | Clear | Glazing, isolation coat, extending paint, collage | Reducing glare |
| Ultra Matte Medium | Very flat | Fluid to soft gel | Milky translucent | Extending paint while staying flat; velvety finish | Transparency; glazing |
| Matte Gel | Matte | Thick paste | Translucent | Heavy collage, texture without shine, impasto | Thinning paint |
| Matte Varnish | Matte | Fluid | Translucent | Final protective finish | Mixing with paint (not designed as a medium) |
| Clear Gesso | Matte, gritty | Fluid paste | Translucent with tooth | Priming while keeping surface visible; grounds for pastel | Smooth sealing; collage |
| Gesso | Matte | Fluid paste | Opaque white | Priming canvas, wood, paper | Anything requiring transparency |
Drying, curing, and compatibility
Thin coats of matte medium are dry to the touch in roughly 20 to 30 minutes and ready for another layer within an hour. Full cure, when the film reaches its final hardness and water resistance, takes several days. Thick applications dry slowly and can stay cloudy for a day or more before clearing as much as they will.
Matte medium is compatible with all acrylic paints, including those from other manufacturers, with acrylic inks and markers, and with water-based media generally. It should not be mixed into oil paint, and it does not reliably bond to an oil-primed surface. It is water-soluble while wet and permanent once dry, so brushes must be washed promptly.
Mixing matte medium with gloss medium in varying proportions is a standard way to dial in a satin finish without buying a third product.
What matte medium does not do well
- It is not a removable varnish. It cannot be taken off later for cleaning or conservation. For archival work, use an isolation coat of gloss medium and a removable varnish such as Soluvar on top.
- It does not hold texture. It levels out. For peaks and knife marks, use gel or modeling paste.
- It clouds over dark colors in thick layers. Keep coats thin, or use gloss where clarity matters.
- It is not a heavy-duty glue. Thick card, wood pieces, and metal need gel medium or a dedicated adhesive.
- It will not make paint matte if the paint is extremely glossy and the medium is a small fraction. Below about 20 percent medium the effect is minor.
Practical tips
- Decant a small amount into a jar for the session rather than dipping brushes into the bottle. Paint-contaminated medium dries milky and speckled.
- Use a soft synthetic flat for sealing and collage coats. Bristle brushes leave streaks that show as sheen differences.
- Judge every result after it dries. Wet matte medium is milky white; the final appearance is nothing like it.
- Store the bottle tightly capped and above freezing. A frozen emulsion separates and does not recover.
- Label a mixing jar if you blend matte and gloss to a custom satin, so you can reproduce the ratio.
FAQs
Is Liquitex matte medium a glue?
It works as an archival adhesive for paper, tissue, fabric, and photographs in collage and decoupage. For heavy or rigid materials, a gel medium or dedicated adhesive is stronger.
Can you use Liquitex matte medium as a varnish?
You can brush it over a finished acrylic painting as a permanent matte topcoat, but it is not removable. For a true varnish, Liquitex sells Matte Varnish and the removable Soluvar.
Does matte medium make acrylic paint transparent?
Yes. The more medium you add, the more transparent the color becomes, which is how it is used for glazing. Over very dark colors, thick matte layers can look slightly frosted.
Can you mix Liquitex matte medium with water?
Yes, for sealing porous surfaces a 1:1 dilution works well. Avoid heavy dilution when mixing with paint, since water (not medium) is what weakens the paint film.
What is the difference between matte medium and gesso?
Gesso is opaque white, gives tooth, and is a true primer. Matte medium is translucent, seals without hiding the surface, and does not add significant tooth. Clear gesso sits between the two.
How long does Liquitex matte medium take to dry?
Thin coats are touch-dry in about 20 to 30 minutes. Full cure takes several days, and thick layers may stay cloudy for a day before clearing.
Final Thoughts
Liquitex Matte Medium earns its place by doing several ordinary jobs well: it thins paint without harm, turns any color into a flat glaze, calms uneven shine, glues paper and fabric, and seals porous surfaces. Its limits are clarity in thick layers, texture, and permanence as a finish, and knowing those tells you when to reach for gloss medium, gel, or varnish instead.
Mediums behave a little differently from brand to brand, and so do the paints they are mixed with. If you are weighing the two most common professional lines, the head-to-head review of Liquitex and Golden acrylic paints explains where each company’s formulations differ. For a close look at Golden’s thin paints, which pair naturally with mediums for glazing, the review of Golden Fluid acrylics is a useful companion.
