Liquitex Professional Fluid Medium — Gloss Acrylic Flow & Transparency, 1.89L Half-Gallon

Liquitex Professional Fluid Medium, Gloss, 1.89L is a high-performance acrylic medium that increases flow, transparency and gloss while preserving paint film strength and archival qualities.

Use this gloss fluid medium to transform professional acrylic colours for glazing, washes, or extended coverage without sacrificing permanence. Unlike diluting with water, the medium maintains acrylic binder integrity so your layers dry hard, flexible and non-tacky. Supplied in a convenient half-gallon bucket, it’s formulated for studio artists, instructors and repeat users who need consistent results and easy mixing.

How does this medium change paint handling for glazing and washes?

Adding Liquitex Professional Fluid Medium to acrylic paint reduces viscosity and boosts transparency for smooth, even glazes and delicate washes. It increases flow and leveling so thin layers spread predictably without breaking the paint film.

• Improves paint flow for feather-light glazes
• Enhances colour depth when used in thin layers
• Prevents pigment separation common with over-thinned paints
• Maintains binder strength so layers dry robust

Will using this medium alter the final sheen or texture of my work?

The gloss formulation increases surface sheen and provides a clear, reflective finish that intensifies colour saturation. It dries to a hard yet flexible film with a non-tacky surface, so texture from brushes or palette knives remains readable under a glossy layer.

• Produces a glossy finish that boosts vibrancy
• Dries to a hard, flexible, non-sticky film
• Retains surface texture and brushwork detail
• Intermixable with other Liquitex Professional mediums and paints

How much medium should I mix in, and will it affect drying time?

Mix ratios depend on the effect: small amounts thin a colour slightly for translucent layers, while larger proportions create extended washes or glazes. The medium can slightly alter open time but won’t compromise the acrylic’s normal drying and archival properties.

• Use small portions for subtle transparency
• Higher ratios for maximum flow and extended coverage
• Compatible with retarders or other Liquitex additives when longer open time is needed
• Does not require special curing—dries like professional acrylics

Is this product safe for classroom and professional use?

Yes. The formula conforms to ASTM D4236 labeling standards and is non-toxic, making it suitable for classroom settings and professional studios. The half-gallon bucket provides economical volume for frequent use and shared environments.

• ASTM D4236 compliant for informed use
• Non-toxic formulation appropriate for education
• Large 1.89L bucket for high-volume or group settings
• Intermixable with Liquitex Professional Acrylic line for versatility

Who is this for: Liquitex Professional Fluid Medium, Gloss, 1.89L is aimed at studio artists, workshop instructors, and committed hobbyists who need a consistent gloss medium to extend paint, improve flow for glazing techniques, or boost colour saturation across large projects. If you want archival performance with greater control over sheen and transparency, this half-gallon bucket delivers professional-grade volume and reliability.