GOLDEN High Flow Medium acrylic medium 473 ml — ultra-thin flow, improves leveling

GOLDEN High Flow Medium is an ultra-thin acrylic medium designed to reduce viscosity, increase flow and leveling, and extend High Flow Acrylics without sacrificing pigment clarity.

Bring precision and fluidity to acrylic painting with this purpose-built medium from GOLDEN. Formulated as the thinnest option in the brand's acrylic medium range, it lets artists achieve watery pours, fine detail work with brushes or airbrushes, improved surface leveling, and predictable flow when diluting heavier acrylic colours. Made in the USA by an experienced, employee-owned manufacturer, the High Flow Medium integrates with acrylic systems to offer repeatable, controllable results.

How does GOLDEN High Flow Medium change paint behavior on canvas?

High Flow Medium thins acrylic colour to a much lower viscosity while maintaining binder integrity, so pigments remain stable and adhere properly. It improves leveling and reduces surface texture, making brushstrokes and flow marks less pronounced.

• Reduces viscosity for smoother spreads and finer lines
• Enhances leveling to minimize brush and pour marks
• Maintains pigment binder for consistent adhesion
• Works with high-flow and regular acrylics to adjust handling

Can I use it with airbrushes, pouring, and detail work?

Yes — its very low viscosity is suited to multiple application methods. Whether you dilute paint for airbrushing, create fluid pours, or draw feather-light lines, this medium helps achieve thin, even flows without breaking colour strength.

• Airbrushing: thins paint for nozzle-friendly consistency
• Pouring: promotes even spread and fewer surface defects
• Detail: supports controlled, continuous lines with minimal drag

What mixing ratios and handling tips give the best results?

Start conservatively and increase the medium until you reach the desired flow — always test on a scrap surface first. Avoid over-thinning to the point of extreme translucency unless that effect is intentional; a wet edge and good ventilation help during application and drying.

• Begin with 10–25% medium by volume, adjust as needed
• For airbrushing, thin further with an appropriate reducer if required
• Mix thoroughly for uniform consistency and pigment suspension
• Test dry time and sheen before finishing or varnishing

What are the durability and compatibility considerations?

Formulated to work within acrylic systems, High Flow Medium preserves archival binder properties when used appropriately. It’s compatible with GOLDEN acrylic colours and many other acrylic brands, but always perform compatibility tests with unfamiliar products or special effects layers.

• Compatible with acrylic paints and most acrylic mediums
• Does not require special primers beyond normal acrylic practice
• Test new material pairings on a sample before full application
• Made in the USA by a long-established paint manufacturer

Who this is for: GOLDEN High Flow Medium is aimed at painters, illustrators, muralists, and mixed-media artists who need precise flow control and low-viscosity handling. It’s especially useful for those working with airbrushes, fluid-paint techniques, glazing, and any process that benefits from even leveling and thin, controllable layers. Professionals and hobbyists who value consistent performance and predictable drying behavior will find it a practical addition to their acrylic toolkit.