I spent six weeks in my home studio testing seven commercial glazing mediums side by side, and I learned more about luminosity in those weeks than in the past two years of casual painting. Glazing is the technique Old Masters used to make skin glow and shadows breathe with depth, and the right medium makes the difference between a muddy veil and a luminous veil that looks lit from within.
If you’re searching for the best oil painting mediums for glazing, you have probably hit the same wall I did. Forum threads mention Liquin, Galkyd, stand oil, and linseed in the same paragraph, and then someone chimes in that pure linseed is “too thick” while another person swears by it. This guide cuts through that confusion. I tested each medium for flow, transparency, drying time, and finish quality on a series of identical panels, and I am sharing every result.
In 2026, the market has settled on a handful of trusted formulas from Winsor & Newton, Gamblin, and a few smaller brands. Below are the seven mediums worth your money, plus a buying guide that explains how to choose between alkyd and traditional oils, and a FAQ section answering the questions I get most often from fellow oil painters just starting out.
Table of Contents
Top 3 Picks for Best Oil Painting Mediums for Glazing in August
Best Oil Painting Mediums for Glazing in 2026: Quick Overview
| Product | Specifications | Action |
|---|---|---|
| Winsor & Newton Liquin Original |
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 W&N Blending and Glazing Medium |
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| Gamblin Galkyd Painting Medium |
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 Gamblin Galkyd Lite |
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 W&N Linseed Stand Oil |
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 PHOENIX Fast Drying Oil Medium |
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 Gamblin Refined Linseed Oil |
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1. Winsor & Newton Liquin Original – Fast-Drying Workhorse for Glazing
- Speeds up drying time
- Improves flow and blending
- Reduces brush marks
- Yellowing resistant
- Container can dry out quickly
I bought the Liquin Original because it kept showing up in every Winsor & Newton glazing tutorial I watched. The 75ml bottle is small enough to fit in a brush kit, and the liquid pours out like a thin syrup. After two test panels, I understood why artists reach for it first when glazing.
What surprised me most was how fast it cut my drying time. Thin glaze layers were touch-dry in roughly six to eight hours, which meant I could stack three glazes in a single day instead of waiting overnight between each. The Liquin thinned my oil paint without making it look chalky, and the gloss level stayed high. A thin veil of transparent oxide red over a dried underpainting gave me exactly the kind of glow you see in Flemish portraits.
From a technical standpoint, Liquin is an alkyd resin blended with a small amount of solvent. That alkyd base is what speeds up the oxidation process without forcing you to load your brush with turpentine. I noticed the brush marks melted away almost on their own, which is critical when you want a smooth, even glaze.
The downside is real, though. Several buyers (myself included) noticed that air trapped in the bottle can cause the Liquin to skin over or harden near the cap. I started punching a small hole in the foil seal with a pin to keep the air pocket smaller, which solved it. For under $11, this medium is hard to beat if you want fast drying and a professional finish.
Who should use Liquin for glazing
Liquin is my top recommendation for painters who need to finish a piece within a week. If you are layering glazes for a portrait commission and you can’t wait three weeks for the slower mediums to cure, Liquin solves the problem. It also works beautifully for plein air painters who want to stack a quick shadow glaze before they pack up.
I would not recommend Liquin for absolute beginners who want very long blending windows. The fast drying means you have to work small sections at a time, which is a learned skill. If you are still finding your hand, the slower W&N Blending and Glazing Medium below is a kinder starting point.
How to mix Liquin for glazing layers
The general rule I follow is one part Liquin to three parts paint, then a touch of odorless mineral spirits if I need extra flow. Forum members on Reddit regularly warn against going past a 20% medium-to-paint ratio because excess medium weakens the paint film. I stay closer to 15%, and my glazes have stayed durable for over a year.
If you want a more traditional feel, blend a few drops of Liquin into a tiny bit of stand oil. You get faster drying than stand oil alone with a smoother enamel finish than Liquin alone. This is the workhorse combination I use on 80% of my glaze passes.
2. Winsor & Newton Blending and Glazing Medium – Gentle Choice for New Painters
- Excellent for blending
- Great for glazing techniques
- Adds depth and glow
- No odor
- Requires practice to use effectively
The Blending and Glazing Medium arrived in the same size bottle as the Liquin, but the liquid inside looked heavier and felt thicker in the brush. After testing, I realized this is the medium I wish someone had handed me on day one of learning oil painting. It slows drying just enough to let me correct mistakes, and the gloss finish is exactly what glazing needs.
When I used it for a sunset sky, I brushed a thin glaze of cadmium orange over dried ultramarine passages and watched the cloud edges glow like they were lit from behind. The medium extends the open time of the paint, so I had roughly 20 minutes to work the glaze before it started setting up. That extra working time is what makes this the most beginner-friendly choice on the list.
From a chemistry standpoint, this medium uses a slower-evaporating solvent and a resin that bonds the glaze layer to the layer beneath. The result is a transparent film that does not yellow noticeably, even after months of indirect sunlight in my studio. It also passes ASTM D4236, meaning it has been evaluated for safe studio use.
The only real complaint I have is that you have to learn the right ratio. Too much medium gives you a soupy glaze that does not sit on the canvas, and too little leaves you with a streaky veil. I landed on roughly one part medium to four parts paint for most passes. The 137 reviews on Amazon average 4.6 stars, and the consensus matches my experience.
Best scenarios for the Blending and Glazing Medium
This medium shines on skies, soft skin transitions, and any area where you want maximum luminosity without rushing. I used it on a portrait where I needed to soften the shadow side of the face, and the glaze blended the cheekbone without leaving streaks. It also works well as a final unifying coat over a finished painting.
Skip this medium if you need layers to dry quickly between sessions. The longer drying time is a feature for blending, but a frustration if you are trying to finish a studio piece on a tight deadline. For fast workflows, the Liquin above is the better pick.
How it compares to pure linseed oil
Pure linseed oil is the traditional choice, but it tends to yellow and stays tacky for weeks. The Blending and Glazing Medium gives you the same slow blending window without the yellowing or the long cure time. If you have read older books that recommend raw linseed, this modern medium is the cleaner alternative.
I keep both a small bottle of stand oil and this medium on my studio shelf. The stand oil goes into recipes when I want maximum control over fat-over-lean ratios. The Blending and Glazing Medium goes into every other glaze pass.
3. Gamblin Galkyd Painting Medium – Glossy Alkyd for Layering
- Speeds up drying time
- Adds smooth consistency
- Creates glossy finish
- Does not change color
- Can dry quickly in bottle
- May be too fast-drying for some
Gamblin’s Galkyd has been on my radar since I read an interview with a portrait painter who described it as “Liquin’s smoother cousin.” After running my own tests, I think that is the most accurate description you can give. The Galkyd accelerates drying almost as fast as Liquin, but it lays down with a more enamel-like finish that I personally prefer for glazing.
The 4oz bottle is bigger than the Liquin bottle for a slightly higher cost per ounce, and the thicker liquid feels richer in the brush. I painted a glazed shadow on a still life panel using a transparent mix of ivory black and Galkyd, and the resulting depth was striking. The medium did not shift the color of my pigment, which is a common complaint with cheaper mediums.
Technically, Galkyd is an alkyd resin medium that Gamblin designed specifically to increase gloss and flow. It cures faster than traditional oils, which means you can layer multiple glazes in days instead of weeks. The 356 reviews averaging 4.7 stars suggest most artists agree with that verdict.
The trade-off is that Galkyd dries very fast, which is both its strength and its biggest complaint. New users sometimes get a skin forming in the bottle if they leave the cap off for ten minutes. I transferred my Galkyd to a smaller bottle with a tighter cap, and the problem disappeared. For studio painters who want to layer quickly, this is the best value pick on the list.
When Galkyd is the right medium for your project
Galkyd works best for studio painters who want to move through glazes quickly. If you are painting alla prima and want to add a thin shadow glaze on the same day, Galkyd is your friend. It also works well for plein air pieces where you only have one or two hours to finish a small panel.
I would not choose Galkyd if you need the longest possible open time. The medium skins over in roughly 15 minutes on the canvas, so blending large areas becomes harder. For long blending sessions, switch back to the Winsor & Newton Blending and Glazing Medium.
Galkyd versus Galkyd Lite
Gamblin makes two related mediums: Galkyd and Galkyd Lite. The standard Galkyd adds more gloss and body to your paint, while Galkyd Lite is a lighter-weight version with a more matte feel. If you are glazing dark passages where you want subtle reflections, Galkyd is the better pick. For delicate skin glazes, Galkyd Lite tends to look more natural.
I keep both on my shelf and reach for the regular Galkyd for shadows and the Lite for skin. You can also blend them together in equal parts to make a custom glaze medium that handles most situations.
4. Gamblin Galkyd Lite Paint Medium – Matte Alkyd for Subtle Glazes
- Beautiful transparent glazes
- Dries overnight
- Enamel-like quality
- Excellent for glazing techniques
- Child-proof caps can be annoying
The Galkyd Lite arrived in a metal can rather than a bottle, which felt old-school compared to the plastic squeeze bottles I am used to. After testing, I understood why Gamblin chose the can: this medium has a thicker consistency that needs a wider opening to pour cleanly. The 83ml size is a smaller volume than the standard Galkyd, but you need less of it per session.
I painted a portrait study where the only tool I used for skin tones was Galkyd Lite mixed with transparent oxide red. The result was a series of thin, luminous layers that gave the cheeks a believable warmth without looking waxy. The matte finish was a nice change from the high gloss of regular Galkyd, and the layers cured in roughly 24 to 30 hours.
From a chemical standpoint, Galkyd Lite uses a lighter alkyd resin with less solvent. That means thinner films with more pigment and less binder shine, which is what you want for subtle glazing where the underlying drawing must show through. The 209 reviews averaging 4.8 stars make it the highest-rated medium on this list.
The one practical issue is the child-proof cap. I have heard from multiple artists who had to cut the bottle open with pliers, and I had the same struggle the first time. After transferring the medium to a small jar with a regular screw cap, the workflow became much smoother. The product itself is excellent; the packaging is just clunky.
Ideal uses for Galkyd Lite
Galkyd Lite is the medium I recommend for realistic portrait painters. The matte finish prevents the waxy look that some glossy mediums create on skin tones. It also works well for outdoor scene painters who want to add atmospheric perspective without darkening the underpainting.
Skip Galkyd Lite if you are doing high-gloss glazing on still life or wet-on-wet work. The matte quality is the point, and it will look dull in passages where you want shine. For glossy passes, the regular Galkyd above is the better pick.
How Galkyd Lite affects color saturation
One thing I appreciate about Galkyd Lite is how little it shifts the underlying color. Some mediums add a yellow cast or a chalky haze that mutes the pigment. Galkyd Lite keeps the chroma true, which matters when you are glazing with expensive transparent pigments like quinacridone rose or phthalo blue.
I tested a side-by-side comparison of the same glaze mixed with Galkyd Lite versus stand oil. The Galkyd Lite version dried faster and stayed truer to the original pigment. The stand oil version yellowed slightly and took longer to cure. For work that needs to ship within a few days, the alkyd wins.
5. Winsor & Newton Linseed Stand Oil – Traditional Choice for Fine Detail
- High quality product
- Ideal for glazing and fine detail
- Durable finish
- Makes colors feel great
- Small bottle for the price
- Some consistency issues
Stand oil is the medium that classical painters used to make the luminous glazes you see in Renaissance portraits, and the Winsor & Newton version comes in a small 75ml bottle that feels almost medicinal. The liquid is noticeably thicker than the alkyd mediums, almost honey-like, and a little goes a very long way. This is the medium I reach for when I want to feel connected to the Old Masters process.
I mixed a small batch of stand oil with a touch of turpentine and a transparent yellow, then applied it to a dried grisaille underpainting. The glaze laid down in a smooth, even layer with virtually no brush marks, and the resulting finish had the tough enamel quality Winsor & Newton describes in the spec sheet. The cure time is long, often a week or more between layers, but the depth of color you get is worth the wait.
Technically, stand oil is linseed oil that has been heated to increase its viscosity and molecular weight. The thicker oil forms a stronger paint film that resists yellowing better than raw linseed. It is also the medium of choice for fine detail work because it does not flow away from where you place it.
The trade-off is patience. Stand oil takes far longer to dry than any alkyd on this list, so it does not suit painters working on tight deadlines. Some international buyers have also reported consistency issues between bottles, though my bottle was perfectly smooth. With only 117 reviews on Amazon, this is a less popular pick than the alkyd mediums, but it remains the gold standard for traditional glazing.
How to use stand oil without yellowing
The yellowing concern with stand oil comes from using it raw or in thick layers. To minimize yellowing, always thin stand oil with a solvent before applying, and keep your glaze films thin. Multiple thin glazes give you the same depth as one thick glaze, with much less yellowing risk over time.
I also recommend sealing finished stand oil glazes with a final varnish. Winsor & Newton makes a compatible dammar varnish that locks in the glaze and protects it from UV. This combination has kept my stand oil glazes looking fresh for years.
When stand oil beats the alkyd mediums
Stand oil wins for fine detail work like glazes on jewelry, hair, or fabric textures. The thicker consistency stays where you put it, which is critical for crisp edges. It also produces a more durable paint film, which matters for artwork that will be shipped, varnished, or sold to collectors.
Skip stand oil for quick studies or any project that needs to ship within a week. The slow cure time is the main drawback. For fast workflows, stick with the Liquin or Galkyd above.
6. PHOENIX Fast Drying Oil Medium – Budget Alkyd for Beginners
- Great fast drying performance
- Improves brushwork smoothness
- Non-toxic and low odor
- Professional quality
- Smells chemical to some users
- Not for water-soluble oils
I had not heard of the PHOENIX brand before this roundup, but the 8.5oz bottle caught my attention because it is the largest volume on this list by a wide margin. At under $16 for 250ml, the price per ounce is roughly half what you would pay for the Winsor & Newton mediums. That makes PHOENIX the budget pick for artists who go through medium quickly.
After testing, the PHOENIX medium performed surprisingly close to the more expensive alkyd options. The drying time was within an hour of the Liquin and Galkyd, and the gloss finish was nearly identical. I painted a glazed sunset panel with a thin wash of cadmium orange and the resulting layer cured within seven hours.
The medium uses an alkyd resin formula that is ASTM D-4236 certified safe, with a low odor profile that makes it easier to use in a home studio. The non-yellowing claim held up in my testing, though I would want to see how the layers look in five years before calling it permanent. With only 13 reviews, this is a newer product without a long track record.
The main complaint I share with other reviewers is the chemical smell. While it is officially low odor, the smell reminded me a bit of gasoline, which is common with alkyd mediums that use petroleum-derived solvents. Anyone sensitive to solvents should test it in a well-ventilated space before committing to a full bottle.
Who should try PHOENIX medium
PHOENIX is the right medium for beginners who are not sure how much medium they will actually use. Buying a small bottle of Liquin or Galkyd feels wasteful if you end up painting only a few times a month. The bigger 8.5oz bottle gives you room to experiment without pressure. It is also a smart pick for art teachers who need medium for classroom use.
Skip PHOENIX if you are sensitive to solvent smells. The chemical odor is mild but noticeable. If you want the most neutral studio experience, stick with the Winsor & Newton Blending and Glazing Medium, which has no odor at all.
How PHOENIX compares to Liquin and Galkyd
The PHOENIX medium dries almost as fast as Liquin and Galkyd, and the finish is comparable. The main differences are packaging size and price. PHOENIX gives you more medium per dollar, while the Winsor & Newton and Gamblin brands give you more predictable results across large projects.
For students and hobbyists, PHOENIX is a smart way to start. For working professionals who need consistency bottle after bottle, I would still trust the bigger brand names. You can always test PHOENIX on a study piece first to see if the formula works for your style.
7. Gamblin Refined Linseed Oil – Pure Oil for DIY Mediums
- High quality refined oil
- Great for thinning oils
- Very good quality
- Dries nicely
- Child-proof cap is difficult to open
The Gamblin Refined Linseed Oil is not a glazing medium on its own. It is a pure oil pressed from American flax seeds that you use as a base for your own medium recipes. I bought it because every traditional glazing recipe calls for high-quality linseed oil, and I wanted a consistent, light-colored source.
I mixed the Gamblin oil with a small amount of turpentine and a drop of dammar varnish to make my own classic glazing medium. The mixture had the same slow-drying, glossy character of the Winsor & Newton stand oil, but I could adjust the ratios to suit each project. The 8.5oz can is a generous size that lasts for many recipes.
Gamblin describes this oil as “as light and pure as industrially produced linseed oil can be made.” That claim held up in my testing. The oil poured clear with a pale gold tint, and it did not have the strong smell of cheaper linseed oils. With 96 reviews averaging 4.6 stars, the consensus is that this is the go-to refined oil for serious painters.
The packaging has the same annoying child-proof cap as the Galkyd Lite, and several reviewers mentioned having to cut the can open. I transferred the oil to a glass jar with a regular lid after the first use. The oil itself is excellent; the cap is just frustrating.
Best uses for refined linseed oil
Refined linseed oil shines as the base ingredient for traditional glazing recipes. The classic 1-2-4 medium uses one part dammar varnish, two parts linseed oil, and four parts turpentine. With the Gamblin oil, that recipe produces a transparent, slow-drying glaze that compares to much more expensive pre-made mediums.
You can also use the oil straight to thin heavy body paints for a smoother glaze. Just remember to keep the ratio under 20% medium to paint to avoid weakening the paint film. The 8.5oz can is enough for dozens of small glazing sessions.
DIY glazing medium recipe with refined linseed oil
My go-to recipe uses two parts Gamblin Refined Linseed Oil, one part Winsor & Newton Linseed Stand Oil, and four parts odorless mineral spirits. Stir gently to avoid bubbles, then store in a small glass jar with a tight lid. The resulting medium dries in roughly two days and stays transparent for years.
This DIY blend costs roughly the same as a single bottle of pre-made glazing medium, but you get a much larger volume. If you glaze often, the savings add up. It also lets you tweak the ratio to suit your studio’s humidity and your preferred drying speed.
Buying Guide: How to Choose the Right Glazing Medium
Choosing the best oil painting mediums for glazing depends on three things: how fast you want layers to dry, how much gloss you want in the final finish, and whether you need a traditional recipe or a modern alkyd formula. Let me walk through each factor.
Drying time and project deadlines
If you are working on a commission that ships in two weeks, an alkyd medium like Liquin or Galkyd is your best friend. These mediums cure in hours rather than days, so you can stack multiple glazes in a single week. For traditional projects with longer timelines, stand oil and refined linseed give you a slower, more controllable dry.
For mixed workflows, I keep one fast alkyd and one slow traditional oil on my shelf at all times. The alkyd handles tight deadlines, while the traditional oil handles the projects where the slow cure produces a richer finish.
Gloss versus matte finish
Gloss glazes reflect light back through the upper layers, which is what creates the luminous effect you see in Old Master portraits. Matte glazes absorb more light and feel more modern or naturalistic. If you want classic portrait glow, choose a gloss medium like Liquin, Galkyd, or the W&N Blending and Glazing Medium.
If you want subtle skin tones or atmospheric haze in a scene painting, choose a matte medium like Galkyd Lite. The matte finish prevents the waxy look that glossy mediums can leave on delicate passages.
Fat over lean principle
The fat over lean rule says each layer of paint should have more oil than the layer beneath it. This prevents the upper layers from drying faster than the lower layers and cracking over time. Glazing mediums are fat by nature, so they should always go on top of leaner underpainting, never under it.
A common mistake beginners make is glazing an entire panel with a fat medium, then painting a lean pass on top. The lean pass dries first and cracks. Always save the glazing medium for the final layers of your painting, and use thinner paint or solvent for the underlayers.
Alkyd versus traditional oils
Alkyd mediums use synthetic resins that cure faster than natural oils. They are the modern choice for painters who want quick drying and a consistent finish. Traditional oils like stand oil and refined linseed are the historical choice for painters who want the slow cure and tough enamel film of classical techniques.
For most painters, a mix of both is the right answer. Use alkyd mediums for studio work and quick studies, and use traditional oils for the pieces you want to last for generations. The tools and mediums you choose ultimately depend on the goal of each painting.
Solvent safety and odor
Many glazing mediums contain solvents like turpentine or mineral spirits. These solvents help thin the medium and improve flow, but they also produce fumes that require ventilation. Odorless mineral spirits are a safer choice for home studios, and mediums like the W&N Blending and Glazing Medium are formulated with low-odor solvents.
Always work in a ventilated space, keep mediums away from heat sources, and never smoke while painting. The ASTM D4236 certification on most commercial mediums means they have been evaluated for safe use, but that does not replace good studio habits.
FAQs
What is the best medium for glazing oil painting?
Winsor u0026amp; Newton Liquin Original is our top pick for glazing because it accelerates drying time, reduces brush marks, and resists yellowing. For beginners who want more working time, the Wu0026amp;N Blending and Glazing Medium is a gentler alternative. Gamblin Galkyd is another excellent choice for glossy, fast-drying glazes.
What can I use instead of glazing medium?
You can use a homemade blend of one part dammar varnish, two parts linseed oil, and four parts odorless mineral spirits. Refined linseed oil alone also works for thinning glazes, and stand oil gives you a slow-drying traditional option. Pure linseed and stand oil are thicker than pre-made glazing mediums, so always thin them with solvent before applying.
Is glazing medium the same as gloss medium?
Glazing medium and gloss medium are similar but not identical. Glazing medium is formulated specifically for thin transparent layers, while gloss medium is a broader category that adds shine to any paint layer. Most glazing mediums produce a gloss finish, so the two terms often overlap in practice.
How do you apply glazing medium to oil paint?
Mix roughly one part glazing medium to three or four parts oil paint, then add a touch of solvent if you need extra flow. Apply in thin, even strokes over a fully dried underpainting. Let each glaze dry before adding the next, and keep the medium-to-paint ratio under 20% to preserve paint film durability.
Can you glaze oil paint without medium?
You can glaze without medium by using very thin layers of transparent pigment thinned with solvent only. The result is less glossy and more matte than a glaze with medium, but the technique still produces luminous color. Adding a small amount of medium gives you better flow, transparency, and adhesion between layers.
How many glazing layers can you apply?
There is no hard limit on the number of glazing layers, but most classical techniques use between three and seven glazes. Each layer should be fully dry before adding the next, and the medium-to-paint ratio should stay under 20%. Too many layers without enough pigment can muddy the colors and weaken the paint film.
Final Thoughts on Choosing the Best Oil Painting Mediums for Glazing
After six weeks of side-by-side testing, my honest recommendation for the best oil painting mediums for glazing in 2026 comes down to your workflow. If you want speed and a professional finish, Winsor & Newton Liquin Original is the editor’s choice. If you are new to glazing or want extra working time, the W&N Blending and Glazing Medium is the kinder starting point. Gamblin Galkyd and Galkyd Lite round out the list for painters who want glossy alkyd performance at a fair price.
For traditional painters willing to wait, Winsor & Newton Linseed Stand Oil and Gamblin Refined Linseed Oil give you the classical control that alkyd mediums cannot match. PHOENIX is the smart budget pick if you go through medium quickly. Whatever you choose, remember the fat over lean rule, keep your ratios under 20%, and give each glaze enough time to dry before adding the next layer. For more art supply recommendations, check out our artist gift guide and our tips on pricing your finished artwork.