GOLDEN OPEN Acrylic Medium Gloss 473 ml — slow-drying, flow-improving glazing medium

GOLDEN OPEN Acrylic Medium (Gloss) is a slow-drying, gloss acrylic medium that thins paint for smoother flow while extending open working time.

Designed for painters who need longer wet time and improved flow without sacrificing colour clarity, this gloss medium blends with OPEN and Heavy Body acrylics. It reduces viscosity for fluid brushwork and fine detail, preserves palette mixes longer, and mixes predictably with fast-drying acrylics when you need partial time extension. Made in the USA by an employee-owned company, this formulation supports professional techniques from glazing to delicate line work.

How does GOLDEN OPEN Acrylic Medium (Gloss) change paint handling?

The medium lowers viscosity to produce a smoother, more fluid paint that spreads easily while maintaining extended open time. It allows thin, even glazes and precise details without weakening pigments or causing brittle films.

• Reduces paint thickness for controlled brush flow and softer edges
• Preserves colour intensity and gloss when mixed with acrylic paints
• Supports delicate strokes with fine brushes when blending with Heavy Body colours

Can I keep mixes on the palette longer with this medium?

Yes — the slow-drying properties mimic the extended working time of OPEN Colours, so mixes remain usable for longer sessions. That reduces waste and lets you return to saved mixes for later layers or corrections.

• Extends open time compared to standard acrylics
• Helps maintain consistent colour blends across sessions
• Useful for multi-step glazing and build-up techniques

Will this medium work with other acrylic ranges and techniques?

GOLDEN OPEN Gloss blends with OPEN Colours and can be mixed into Heavy Body or fast-drying acrylics to moderate drying times and flow. Use it when you need more working time for glazing, wet-into-wet blending, or detailed brushwork without changing pigment performance.

• Mixable with OPEN Colours and conventional acrylics for flexible working time
• Helpful for layering, glazing, and fine-detail painting
• Maintains a glossy finish compatible with varnishing or final coatings

What practical effects should I expect when using this gloss medium?

Expect glossier surfaces, smoother brushstrokes, and more fluent colour transitions compared with unmodified acrylics. The product keeps paints workable longer on the palette and supports both large washes and intricate mark-making.

• Produces a stable, glossy film when fully cured
• Improves flow for even washes and fine edges
• Helps reduce discarded paint by prolonging usability

Who is this for: GOLDEN OPEN Acrylic Medium (Gloss) is aimed at professional and serious studio artists who require longer open time for glazing, wet blending, and detailed brushwork. It's also a practical choice for instructors and hobbyists who want more predictable paint behavior, reduced waste, and a glossy finish in 16 fl. oz. sizing suitable for sustained studio use.