Our readers keep the lights on and my morning glass full of iced black tea. As an Amazon Associate, I earn from qualifying purchases.7 Best Acrylic Mediums And Gels | Stop Your Paint Sinking

Check Price on Amazon

Golden’s Soft Gel Gloss is the industry benchmark for a reason: it delivers a clear, glossy film with outstanding flexibility and UV resistance after drying. This is the go-to medium for creating transparent glazes that deepen color without muddying it, or for adhering collage elements to canvas with a bond that won’t crack over time. The soft body spreads easily by brush or palette knife but does not hold a sharp peak — it levels slightly, making it ideal for smooth, even coatings.

What stands out in real-world use is how well it performs as a transfer medium for image lifting. Artists report brushing it over magazine clippings, letting it dry, and then removing the paper backing to reveal a clear, flexible decal that sticks to most surfaces. It works beautifully on canvas, wood, and paper without warping the substrate. Made by an employee-owned company with decades of acrylic chemistry experience, this jar offers professional-grade reliability that cheaper alternatives cannot match.

One detail to note: because of the gloss finish, writing or stamping over dried Soft Gel Gloss can be tricky — the glossy surface resists some pens and inks. For hybrid journaling or mixed-media where you plan to write over the medium, a matte finish would serve you better. That said, for pure visual depth and archival permanence, this is the premium choice.

Check Price on Amazon

Golden’s Matte Medium is a liquid, not a gel, and that distinction is critical. It flows like thin cream and dries to a translucent, toothy, wax-like matte finish that feels smooth to the touch. This is the definitive medium for paper collage and bookbinding — artists consistently praise its ability to glue down thin paper and tissue without wrinkling or puckering, while maintaining a completely non-reflective surface. The toothy texture also provides an excellent ground for pastel, charcoal, or graphite over the dried medium.

Unlike heavy gels that bulk up the surface, this medium sits thin. You can use it to extend a small amount of expensive acrylic paint across a large canvas without altering the color, or as a nearly clear ground on raw canvas in place of gesso. The matte finish mutes the gloss of straight acrylic paint, which helps when you want a uniform, low-sheen surface across mixed materials. Multiple reviewers mention using it as a glue for layering book pages and napkins with zero visible residue.

One limitation: because it is a liquid medium, it cannot create three-dimensional texture. If you want peaks, ridges, or knife marks, you need a gel or impasto medium. Also, while it dries fairly fast (thin layers in 20-30 minutes), thicker applications can remain tacky longer than expected. Stick to thin layers for best results.

Check Price on Amazon

Prima Marketing’s Art Basics 3D Matte Gel is a heavy-body gel with a surprising dual personality: it creates dimensional texture AND acts as a structural adhesive for heavy mixed-media elements. Artists report using it to glue down beads, wood veneers, small metal pieces, and even ceramic shards on canvas — the hold is strong enough that once cured, the elements are effectively cemented in place. The gel dries to a flexible, permanent matte film that remains slightly rubbery, which helps absorb shock without cracking.

Texture-wise, this gel holds a clean peak when applied with a palette knife. You can build thick layers for stencil work or dimensional backgrounds without worrying about sagging. The matte finish is genuinely non-reflective, which reviewers appreciate when they want texture without a glossy glare. It also dries fairly fast — thin layers in 15 minutes, thicker peaks in an hour or so — allowing you to build complex layers in a single sitting.

There is one practical annoyance: the gel is tenacious on skin. Once it dries on your fingers, it is extremely difficult to wash off without scrubbing. Wearing gloves during application is strongly recommended. Also, because it is a heavy-body gel, it does not self-level — brush marks and knife ridges will remain exactly as applied, so you must be deliberate with your tool strokes.

Check Price on Amazon

Mont Marte’s Impasto Medium is designed specifically for artists who want dramatic, visible brush and palette knife strokes that remain frozen in place after drying. Unlike soft gels that settle, this medium refuses to level — reviewers consistently note that when you scoop it with a knife, it stands up in a stiff mound and retains that shape through the curing process. The 500ml (17 oz) can is generously sized for the price, giving you plenty of material to practice impasto techniques without worrying about cost.

The real advantage here is drying speed. Thin layers dry to the touch in about an hour, and even thick, sculptural peaks are fully cured within 24 hours. This is noticeably faster than many premium gels, which can take up to 48 hours for heavy applications. The medium mixes cleanly with acrylic paint without dulling or shifting the pigment, and it dries to a matte finish — though some users report a slight sheen in direct light, so a final matte varnish may be needed for a fully flat appearance.

One trade-off: the product is not labeled as archival or UV-resistant. For student work, practice pieces, or decorative projects, this is not an issue. But if you are creating a piece meant to last decades in a sunlit room, a professional-grade impasto gel from Golden or Liquitex would offer greater long-term clarity and flexibility. Cleanup with water is easy when the medium is still wet, which is a welcome convenience.

Check Price on Amazon

Handy Art’s Gel Medium offers a massive 32 oz (2 lb) jar of thick, creamy gel at a price that undercuts most competitors by a wide margin. The consistency sits between a soft gel and a heavy gel — it is thick enough to use with a palette knife for moderate texture, but pliable enough to spread with a brush for collage work. When dry, the film is clear with a matte finish, though some users note it is slightly less transparent than premium brands, with a faint haze in very thick applications.

This medium shines in high-volume scenarios: classroom projects, community art workshops, or any situation where you are going through gallons of medium. It mixes well with acrylic paint for impasto effects and works as a strong adhesive for paper and lightweight fabric collage. The wide-mouth quart jar accommodates palette knives and wide brushes easily, which speeds up workflow. AP non-toxic certification means it is safe for use by students and children under supervision.

The compromise comes in the refined behavior. Compared to Golden or Prima gels, Handy Art’s formula is less forgiving — it can warp thin paper if applied too wet, and the cured film has slightly less flexibility, which could lead to cracking on flexible substrates like canvas that is stretched tight. For rigid surfaces like wood panels, Masonite, or heavy paper, it performs admirably. This is a workhorse medium, not a luxury one.

Check Price on Amazon

PEBEO’s Matt Gel comes in a tube format that gives you precise control over small amounts — a distinct advantage for detail work, fine-line stenciling, and painting on glass or ceramic surfaces. The gel squeezes out smoothly and applies with a brush without sagging, and it dries to a truly matte, translucent finish that does not attract fingerprints. Reviewers specifically praise its performance on smooth, non-porous surfaces like glass vases and tiles, where many other gels struggle to adhere.

One clever use case mentioned by buyers: applying the gel over glossy stickers and printed labels to kill the shine and make them blend into a matte surface. This works surprisingly well, turning shiny commercial elements into cohesive parts of a mixed-media piece. The gel is also non-yellowing, which is important when used on white or light-colored backgrounds where yellowing would be immediately visible. It mixes cleanly with acrylic paints to increase transparency while maintaining a matte finish.

The tube format does limit volume — 250 ml is fine for small projects and detail work, but you will go through it quickly if you are covering large areas or building thick texture. Also, the gel is soft-bodied and does not hold a sharp peak, so it is not suitable for heavy impasto. Think of it as a precision tool for controlled applications rather than a bulk medium for large surfaces.

Check Price on Amazon

Nicpro’s Pouring Medium is the volume king: a jumbo 69 oz (2040 ml) bottle with a built-in pump dispenser that turns messy fluid-art preparation into a clean, measured process. This medium is formulated specifically for acrylic pouring — it reduces the viscosity of the paint dramatically, creating a thin, self-leveling fluid that spreads across canvas in smooth waves. The gloss finish produces that high-shine, resin-like look that pour painters chase, and the formula is designed to resist cracking as the paint cures.

The built-in pump is a genuine workflow improvement. One press delivers a consistent shot of medium, so you can mix paint-to-medium ratios by pump count rather than estimating volumes. This is particularly useful in classroom or workshop settings where multiple batches need to be consistent. Non-toxic certification (ASTM D4236 and EN71) makes it safe for use by teens and adults in group settings. The bottle is translucent, so you can see your remaining supply at a glance.

The trade-off: this is a very wet, thin medium. It is excellent for dirty pours, flip cups, and swipes where you want cells and flow, but it is too thin for glazing techniques where you need controlled transparency without runniness. Advanced artists looking for a gel medium to create fine-art glazes will find this too liquid. For its intended purpose — high-volume, accessible pouring — it outperforms everything in its price tier.