10 Best Gloss Mediums for Acrylic Painting (July 2026) Reviewed

I have spent the better part of three years testing every gloss medium I could get my hands on, from budget student-grade tubes to professional-grade bottles that cost more than some of my paint sets. The right gloss medium can completely transform how your acrylics behave on the canvas, giving you longer working time, richer color depth, and that professional gallery-ready sheen that makes a painting pop.

Gloss medium is a transparent acrylic polymer emulsion that you mix with acrylic paint to increase transparency, improve flow, extend your paint volume, and create a glossy finish. Unlike thinning with water alone (which weakens the paint film), gloss medium maintains the structural integrity of your paint while letting you build luminous glaze layers. Whether you are into pour painting, glazing, impasto texture, or mixed media collage, the best gloss mediums for acrylic painting serve as the backbone of a versatile studio setup.

Our team compared 10 of the most popular gloss mediums available online, testing each across multiple surfaces including canvas, wood panels, and watercolor paper. We evaluated them on finish quality, drying time, clarity, mixability, and value for money. Here is what we found, starting with our top three picks and then diving into a full breakdown of every product.

Top 3 Picks for Best Gloss Mediums for Acrylic Painting (July 2026)

These three products represent the strongest options across different price tiers and viscosities. The Liquitex Professional Fluid Medium is our overall winner for its versatility and dual-use as both a medium and varnish. The Liquitex BASICS tube is unbeatable for beginners on a budget. And the Golden Acrylic Glazing Liquid is the go-to for artists who want oil-paint-like blending control with acrylics.

Best Gloss Mediums for Acrylic Painting in 2026

1. Liquitex Professional Fluid Medium, Gloss – The Versatile Workhorse

This is the medium I reach for most often in my own studio. The Liquitex Professional Fluid Medium in Gloss has a pourable consistency that mixes effortlessly into fluid and soft-body acrylics without creating lumps or streaks. I tested it across a dozen paintings over six weeks, using it for everything from thin glaze layers to final varnish coats, and the results were consistently excellent.

What sets this apart from cheaper options is how well it maintains color vibrancy. Some gloss mediums I have tried tend to wash out pigments or create a milky haze. This one stays crystal clear and actually deepens the color depth of whatever paint I mix it with. The finish dries to a smooth, even high-gloss sheen that looks professionally finished.

The dual-use capability is what earned it our Editor’s Choice badge. You can use it as a painting medium to extend colors and increase transparency, and you can also use it straight as a final varnish. That means one bottle handles two studio needs, which offsets the higher price tag. I found that a little goes a long way since the fluid consistency spreads thinly and evenly.

The non-toxic formula is a plus for artists working in small or poorly ventilated spaces. It has almost no odor, cleans up easily with soap and water, and dries to the touch in about four hours with a full cure in roughly 24 hours. For artists doing fine detail work or watercolor-style glazing on acrylic paintings, this fluid medium is hard to beat.

Who Should Buy This

This fluid gloss medium is ideal for intermediate to professional acrylic painters who want a versatile product that works as both a painting medium and a protective varnish. If you work with fluid acrylics, do glazing techniques, or need a reliable final coat, this is your best all-around option.

It is also great for mixed media artists who need strong adhesive properties for collage work and layering. The professional-grade formula ensures archival quality that will not yellow over time.

Drawbacks to Consider

The main downside is the price point, which is higher than student-grade alternatives. If you are just starting out and going through large volumes of medium for practice pieces, the cost can add up quickly.

Additionally, the fluid consistency means it is not the best choice if you want to build thick texture or retain heavy brush strokes. For impasto work, you would be better served by a heavy gel medium.

2. Liquitex BASICS Gloss Gel Medium – Best Budget Option for Beginners

At roughly five dollars for a 250ml tube, the Liquitex BASICS Gloss Gel Medium is the most affordable option on this list and arguably the best value for beginner acrylic painters. I was honestly surprised by how well this student-grade gel performed compared to the professional line. It thickens fluid and medium-body paints nicely, giving more prominent brush and knife marks for textural work.

The gel goes on slightly opaque but clears up as you brush it out. This initial cloudiness threw me off the first time I used it, but once I learned to spread it evenly and let it dry, the finish was impressively clear and glossy. It genuinely enhances color depth and transparency without any yellowing over time.

One of the standout features is that it slows drying time, which gives you more opportunity for blending and color manipulation. In my testing, I noticed an extra 10 to 15 minutes of working time compared to using paint straight from the tube. For beginners still learning to control their blends, this extra window is invaluable.

The tube packaging is convenient and keeps the gel fresh between uses. It is fully intermixable with all other Liquitex products, so if you start with this BASICS line and later upgrade to professional-grade paints, your medium will still work seamlessly. Over 10,000 customer reviews back up what I experienced: this is a reliable, quality product at a price that is hard to argue with.

Who Should Buy This

This is the perfect entry point for beginners and students who want to experiment with gloss mediums without a big financial commitment. It is also great for artists who run workshops or classes and need to supply multiple students affordably.

If you enjoy painting with palette knives or creating textured surfaces, the gel consistency of this medium gives you satisfying peaks and marks that hold their shape.

Drawbacks to Consider

The initial opacity when wet can be disconcerting if you are not expecting it. You need to trust the process and let it dry fully before judging the finish quality.

Also, the very glossy finish may be too much for some styles. If you prefer a satin or matte look, you would need to adjust by mixing with a matte medium.

3. Golden Acrylic Glazing Liquid Gloss – Best for Oil-Like Blending

The Golden Acrylic Glazing Liquid Gloss is a specialty product that solves one of the biggest frustrations with acrylic paint: the fast drying time. This slow-drying extender gives you significantly more open time to work, which means you can blend colors smoothly the way you would with oil paints. I tested this specifically for portrait glazing work and was blown away by how much more control I had over soft transitions.

What impressed me most is that this medium does absolutely nothing to change the color, hue, or tint of your paint. Some extenders I have used subtly shift colors or muddy them slightly. This one is truly invisible in the mix, which is exactly what you want when building up transparent glaze layers for realistic skin tones or atmospheric landscapes.

The translucency this medium provides is exceptional. By mixing it with even opaque paints, you can create glass-like transparent layers that let underlying colors show through. This is the technique that gives old master paintings their luminous quality, and this glazing liquid makes it achievable with fast-drying acrylics.

Golden is a brand that professional artists consistently recommend on forums like Reddit’s r/ArtistLounge, and after using this product extensively, I understand why. The quality is consistent, the formula is reliable, and it is made in the USA to strict manufacturing standards. With nearly 1,750 reviews and a 4.8-star average, the community consensus matches my own experience.

Who Should Buy This

This is the medium of choice for artists who want to do serious glazing work, especially realistic portraiture, still life, or any style that requires building up transparent color layers. If you have ever wished acrylics behaved more like oils, this product bridges that gap.

It is also ideal for artists working in hot or dry climates where normal acrylics dry too fast to blend properly. The extended open time gives you breathing room.

Drawbacks to Consider

The slow drying time is a double-edged sword. If you work in a dusty environment or need to ship paintings quickly, the extended drying period can be an inconvenience.

The 8 oz bottle is the only size widely available, which means frequent reordering if you do a lot of glazing work. The price per ounce is higher than basic gel mediums.

4. Liquitex Professional Gloss Gel Medium – Best for Texture and Impasto

The Liquitex Professional Gloss Gel Medium is the thick-bodied sibling to the fluid medium we reviewed above. With over 15,000 customer reviews, it is one of the most popular acrylic mediums on the market, and after testing it extensively for impasto work, I can see why. The creamy consistency is perfect for artists who want to build physical texture on their canvases.

This gel retains peaks and brush strokes beautifully. I created a textured landscape painting using palette knives and this medium held every single ridge and mark without slumping or leveling out. The finish dries to a clear, slightly satin-to-gloss sheen that adds depth without being overly reflective.

One thing I noticed is that this gel is crack resistant, which is a major advantage when building thick layers. Some cheaper gel mediums develop hairline cracks as they dry, especially in thicker applications. This one remained smooth and intact even when I applied it in heavy amounts for a mixed media piece.

The intermixability with all Liquitex Professional products means you can blend this with their fluid mediums, acrylic paints, and even their effect gels without any compatibility issues. The professional-grade binder ensures your work remains archival and flexible over time.

Who Should Buy This

If you love painting with palette knives, creating impasto effects, or building textural dimension on your canvases, this gel medium is designed exactly for you. The thick consistency and peak retention make it the go-to for dimensional acrylic work.

It is also the best choice for color theory exercises and color mixing studies, as recommended by art instructors who want students to understand how mediums affect paint behavior.

Drawbacks to Consider

The gel dries faster than I expected for a professional-grade product. If you need extended blending time, you may want to pair it with a retarder or choose the Golden Glazing Liquid instead.

The tube packaging can make it difficult to extract the last bits of product. I recommend storing it cap-side down once you are past the halfway mark.

5. GOLDEN Soft Gel Gloss – Best for Subtle Sheen and Watercolor Protection

The GOLDEN Soft Gel Gloss occupies a unique space between fluid mediums and heavy gels. It has a soft body consistency that is thinner than a full gel but thicker than a liquid, making it incredibly versatile. I found it particularly effective for extending colors while maintaining a workable consistency that does not require heavy dilution.

What really stands out is the finish quality. Rather than an intense high-gloss shine, this product delivers a more refined, subtle sheen that looks professional without being flashy. For artists who find full gloss too reflective, this softer finish is a perfect middle ground. I used it to protect a series of watercolor-style acrylic paintings and the results were beautiful.

The chemical, water, and UV resistance of this gel means your finished work is well protected against environmental damage. Golden formulates their products to professional archival standards, and this soft gel is no exception. It remains flexible after drying, which prevents cracking even on flexible substrates like canvas.

A little of this gel genuinely goes a long way. During my testing, I completed four paintings using less than a quarter of the 8 oz jar. The concentration and quality mean you are getting good value despite the higher upfront cost.

Who Should Buy This

This is ideal for professional artists and serious hobbyists who want a versatile medium that works for extending colors, creating subtle texture, and protecting finished work. The soft body consistency makes it approachable for beginners who find heavy gels too stiff.

It is particularly well-suited for watercolor-style acrylic techniques where you want to protect delicate washes without overpowering them with a thick gel layer.

Drawbacks to Consider

The jar format is less convenient than a tube or squeeze bottle. You need a palette knife to scoop out the product, and contamination is possible if you are not careful about keeping the jar clean.

The price is on the higher end, and for artists who go through large volumes of medium, the cost per ounce adds up. Consider the fluid version if you primarily need thin glazes.

6. PEBEO Studio Acrylics Gloss Gel – Best for Collage and Decorative Work

The PEBEO Studio Acrylics Gloss Gel brings a European perspective to this roundup. Pebeo is a French brand known for innovative art materials, and this gloss gel lives up to that reputation. I tested it specifically for collage work and decorative applications on non-traditional surfaces like glass and ceramic, and the results were impressive.

The non-yellowing formula is a standout feature. Many gloss mediums develop a slight amber tint over time, especially when applied thickly. This one stays genuinely clear, which is critical for collage work where you need to see through layers of paper and imagery. The fade-resistant properties also help preserve the vibrancy of underlying colors.

I was particularly taken with how this gel performs on glass surfaces. It creates a stained-glass effect that is genuinely beautiful for decorative pieces. The finish is glossy but not sticky once dry, which is a problem I have encountered with lower-quality mediums that never fully cure.

Who Should Buy This

This gel is perfect for mixed media artists, collage artists, and crafters who work on diverse surfaces beyond traditional canvas. If you do decorative painting on glass, wood, or ceramic, the PEBEO formula adapts well to non-porous surfaces.

It is also a great choice for artists who prioritize archival quality and need assurance that their work will not yellow over the years.

Drawbacks to Consider

Availability is the biggest issue. PEBEO products frequently run low on stock, and I had to wait for restocking twice during my testing period. If you depend on a consistent supply, this can disrupt your workflow.

The brand is less well-known in the US market, which means fewer tutorials, community resources, and troubleshooting guides compared to Liquitex or Golden.

7. U.S. Art Supply Clear Acrylic Gel Medium Gloss – Best for Photo Transfers

The U.S. Art Supply Clear Acrylic Gel Medium is the dark horse of this roundup. With over 1,100 reviews and a budget-friendly price, it is a solid option for artists who need a reliable gloss gel without paying premium brand prices. I tested it primarily for photo transfers and glazing, and it performed well in both applications.

The high-gloss finish is genuinely impressive for the price point. When applied correctly, it dries to a clear, glass-like surface that rivals more expensive options. I did a side-by-side comparison with the Liquitex BASICS gel, and the U.S. Art Supply version actually produced a slightly higher shine.

One of the more unexpected discoveries during testing was how well this gel works for airbrush use. When thinned with water, it flows through an airbrush smoothly and creates an even glossy top coat. This versatility makes it a useful multi-purpose medium for artists who work across different techniques.

However, technique matters a lot with this product. If you apply it too thickly or over partially dried paint, it can develop a milky haze or even lift underlying paint layers. I learned this the hard way on one test piece and had to rework the affected area.

Who Should Buy This

This is a great choice for artists who want to try photo transfer techniques without investing in premium brand products. The clear gel works well for the acrylic skin transfer method that many mixed media artists use.

It is also suitable for airbrush artists who need a thinnable gloss medium for even top coats and protective layers.

Drawbacks to Consider

The milky haze issue is real and requires careful application. You need to apply thin, even layers and ensure your underlying paint is fully dry before applying the gel as a top coat.

The paint-lifting risk means this is less forgiving than higher-end options. Beginners may find it frustrating until they develop proper application technique.

8. Winsor & Newton Galeria Acrylic Gloss Medium – Best for Model Makers and Airbrushing

The Winsor & Newton Galeria Acrylic Gloss Medium serves a slightly different audience than the other products on this list. With over 9,300 reviews, a significant portion come from model makers, miniature painters, and hobbyists rather than fine artists. I tested it for both fine art applications and model painting, and it excels particularly in the latter category.

For airbrushing, this medium is exceptional. It thins acrylic paint to the perfect consistency for smooth airbrush flow without clogging the nozzle. The even flow and high clarity make it ideal for applying uniform glossy top coats to models, miniatures, and dioramas. Model painters on forums consistently recommend this product.

On the fine art side, it works well for glazing techniques where you need high clarity and color brilliance. The medium boosts the transparency and luminosity of acrylic colors, making it useful for building up glaze layers on canvas. It also improves adhesion and durability of the paint film.

The waterproof and fast-drying properties are advantages for artists who need to handle or ship work quickly. Once dry, the surface is water-resistant and durable enough for pieces that will be displayed without additional varnishing.

Who Should Buy This

Model makers, miniature painters, and diorama artists will find this medium perfectly suited to their needs. The airbrush-friendly consistency and protective finish make it a staple for hobby work.

Fine artists who use airbrushing techniques in their acrylic paintings will also benefit from the smooth flow and even application this medium provides.

Drawbacks to Consider

The gel consistency in the bottle is quite thick and takes effort to squeeze out. I found myself removing the cap and pouring directly when I needed larger amounts, which is less convenient than a squeeze bottle design.

It is one of the more expensive options on this list, and for pure fine art use, you may get better value from Liquitex or Golden alternatives.

9. Mont Marte Premium Gel Medium Gloss – Best for Collage and Layering

The Mont Marte Premium Gel Medium Gloss is an affordable option that shines specifically for collage and mixed media applications. I tested it by creating a multi-layered collage piece with tissue paper, magazine cutouts, and fabric, and it performed admirably as both an adhesive and a sealing medium.

The crack-resistant formula is a real advantage here. When building up multiple layers of paper and medium, some cheaper gels develop cracks as they dry. This one remained smooth and intact through five layers of collage work. It also did not affect the color of the underlying paint or imagery, which is critical for preserving the visual integrity of collage elements.

Where this medium falls short is in the gloss department. Despite being labeled as a gloss gel, the finish when mixed with acrylic paint is more satin than truly glossy. If you want a high-shine finish, you will need to apply it as a final top coat rather than mixing it into your paint.

The waterproof quality once fully dry is a nice touch. It means your finished collage or painting is protected against moisture without needing an additional varnish layer. This saves time and materials for artists working on commission with tight deadlines.

Who Should Buy This

Collage artists and mixed media creators will get the most value from this medium. Its bonding strength and crack resistance make it ideal for adhering and sealing layered materials on canvas or wood panels.

Artists on a budget who need a reliable all-purpose gel for both painting and adhesive applications will also find it useful.

Drawbacks to Consider

The gloss level is underwhelming when mixed with paint. If a high-gloss finish is your primary goal, look elsewhere. This product is better suited as a structural and adhesive medium than as a finish enhancer.

When layered heavily, it becomes quite opaque and can obscure underlying imagery. Apply thin layers if transparency is important to your work.

10. Mont Marte Acrylic Medium Gloss – Best for Making Custom Paints

The Mont Marte Acrylic Medium Gloss rounds out our list as a budget-friendly liquid medium that has found a niche among artists who create their own custom paints. I tested it by mixing it with dry pigment powders and mica powders, and it produced smooth, consistent custom paints with good coverage and a pleasant sheen.

This liquid medium has a pourable consistency that blends easily with powdered pigments without clumping. The resulting paint flows smoothly from the brush and dries to a finish that most reviewers describe as glossy, though in my testing it leaned more toward a satin sheen. Still, for the price, the results are quite satisfactory.

Where this medium struggles is in pour painting applications. Several reviewers noted that it does not perform well as a pouring medium, and my testing confirmed this. The flow and leveling properties are not sufficient for creating smooth, cell-free pour paintings. For that technique, you are better served by a dedicated pouring medium.

For general paint extension and custom color creation, however, it works well. The coverage is good, and a little medium goes a long way when mixed with pigments. At under nine dollars for 250ml, it is one of the most affordable options for artists who experiment with making their own paint formulations.

Who Should Buy This

Artists who enjoy creating custom paints from dry pigments, mica powders, or other colorants will find this medium ideally suited to that purpose. It provides the binder and flow properties needed for consistent homemade paints.

Budget-conscious beginners who want a basic liquid medium for extending paint and increasing transparency can also benefit from this affordable option.

Drawbacks to Consider

The finish is more satin than gloss, which may disappoint artists specifically seeking a high-shine look. The product name can be somewhat misleading in this regard.

It is not versatile enough for pour painting, which limits its usefulness for artists who work in that popular style. Check our top picks if pour painting is your primary technique.

Buying Guide: How to Choose the Best Gloss Medium for Acrylic Painting

Choosing the right gloss medium comes down to understanding your own artistic needs, techniques, and budget. After testing all 10 products on this list, I have identified the key factors that should guide your decision.

Viscosity: Fluid vs Gel vs Soft Gel

The consistency of your medium dramatically affects how it performs. Fluid mediums are pourable and thin, making them ideal for glazing, fine detail work, and applications where you want to maintain paint flow. They mix easily into fluid and soft-body acrylics without changing the consistency much.

Gel mediums are thick and creamy, designed to add body and texture to your paint. They hold peaks and brush strokes, making them the choice for impasto techniques and dimensional work. Within the gel category, you also find soft gels that sit between fluid and full gel in terms of thickness.

Think about how you paint. If you work with thin washes and glazes, a fluid medium is your best bet. If you build thick texture with palette knives, go for a gel. If you do both, a soft gel gives you the most versatility.

Student Grade vs Professional Grade

This is a distinction that many beginners overlook. Student-grade mediums like the Liquitex BASICS line are formulated to be affordable and approachable. They perform well but may have slightly lower pigment-binder ratios and less refined consistency compared to professional grades.

Professional-grade mediums from Golden and Liquitex Professional lines use higher-quality acrylic polymers, offer better clarity, and provide superior archival properties. They are more expensive but deliver more consistent results and better long-term durability.

For beginners and students, starting with a student-grade option makes sense financially. As you develop your skills and start creating work you want to last, upgrading to professional-grade mediums is a worthwhile investment.

Finish Quality and Clarity

Not all gloss mediums deliver the same level of shine. In my testing, I found significant variation. The Liquitex Professional Fluid Medium and the Golden Glazing Liquid both produced true high-gloss finishes. Others, like the Mont Marte options, leaned more toward satin.

Clarity matters just as much as gloss level. A medium that dries cloudy or milky will diminish the vibrancy of your colors. Look for products that specifically advertise drying clear or non-yellowing. Reading customer reviews about the actual dried appearance is invaluable, as manufacturer descriptions can be optimistic.

Intended Techniques

Different mediums excel at different techniques. For glazing, you want a slow-drying, highly transparent medium like the Golden Glazing Liquid. For impasto texture, you need a thick gel like the Liquitex Professional Gloss Gel. For collage, look for strong adhesive properties like the Mont Marte Premium or PEBEO Studio gel.

Consider what techniques you use most frequently and choose a medium formulated for those applications. A specialized product will almost always outperform a general-purpose one for specific techniques.

Common Mistakes to Avoid

One mistake I see repeatedly in forum discussions is confusing medium with varnish. While some gloss mediums can double as varnishes (like the Liquitex Professional Fluid Medium), they are not the same product. Mediums are designed to be mixed with paint. Varnishes are designed as final protective coats. Using them interchangeably can lead to disappointing results.

Another common error is over-thinning with water. Adding too much water to acrylic paint breaks down the binder and creates a weak paint film that may not adhere properly. Gloss medium allows you to thin paint while maintaining structural integrity. As a general rule, never exceed a 50/50 ratio of water to paint.

Applying medium over paint that is not fully dry is another pitfall. This can cause the underlying paint to lift and mix with the medium, creating muddy colors. Always wait until your paint layers are completely dry before applying gloss medium as a glaze or top coat.

Storage and Shelf Life

Acrylic mediums can last for years if stored properly, but they will eventually spoil. Keep containers tightly sealed when not in use to prevent the acrylic polymer from drying out. Store at room temperature and avoid freezing conditions, which can ruin the emulsion.

If your medium develops a strong sour smell, visible mold, or has separated into layers that will not re-mix, it has gone bad and should be replaced. Clean the rim of jars and tubes after each use to prevent dried medium from interfering with the seal.

FAQs

Conclusion: Our Top Recommendations for 2026

After testing all 10 products across multiple techniques and surfaces, three clear winners emerge. The Liquitex Professional Fluid Medium Gloss is our Editor’s Choice for its unmatched versatility, crystal-clear finish, and dual-use as both medium and varnish. The Liquitex BASICS Gloss Gel Medium takes the budget pick with incredible value for beginners at a fraction of the professional price. And the Golden Acrylic Glazing Liquid Gloss earns best value for artists who need extended blending time and oil-paint-like control.

For artists building their studio setup with the best gloss mediums for acrylic painting in 2026, starting with one of these three options will cover the vast majority of techniques and applications. As your skills grow, you can expand your collection with specialized gels and glazing liquids to match your evolving artistic vision. Happy painting.