Liquitex Slow-Dri Gel 473ml (16 oz) acrylic medium — extends open time 40%, thickening & transparency

Liquitex Professional Slow-Dri Gel is a 473ml acrylic medium formulated to extend drying time up to 40% and improve surface blending while adding body, transparency, flexibility, and strong adhesion to acrylic paints.

Liquitex Slow-Dri Blending Gel is designed for artists who want more working time and greater control when blending acrylics. It mixes smoothly with Liquitex Heavy Body and other professional acrylic colours to thicken, increase transparency and gloss, and create richer, more workable paint without weakening the paint film. The medium dries clear and flexible, resists yellowing, and is suitable for canvas, wood, paper and other surfaces that accept acrylic media.

How does Slow-Dri Gel help when layering and blending acrylics?

Slow-Dri Gel slows the surface drying rate so you can blend colour transitions longer than with unmodified acrylics. Because it has a body similar to heavy body paint, it allows artists to build texture and work wet-on-wet without losing paint thickness.

• Extends open working time up to 40% for smoother blends and softer edges
• Maintains viscosity—mix any amount without thinning structure
• Dries transparent, revealing full colour depth

Can I mix this medium with Liquitex paints and other mediums?

Yes—Slow-Dri Gel is fully intermixable with Liquitex Professional Acrylic Colours and other Liquitex mediums. It increases transparency and gloss while preserving adhesion and flexibility in the finished film, unlike some retarders that can weaken paint strength.

• Mix with Heavy Body or Soft Body colours to extend volume and working time
• Compatible with other Liquitex mediums for varied textures and finishes
• Safe to add in any ratio without compromising film integrity

What surfaces and techniques are best for this medium?

Formulated for broad use, Slow-Dri Gel adheres to any surface that accepts acrylic media, including canvas, paper, wood panels and primed boards. Use it for wet-on-wet glazing, impasto strokes, scumbled passages, or to increase transparency in layered work.

• Works well for impasto and textured marks due to heavy-body feel
• Ideal for glazing and translucent layers when mixed with paint
• Dries to a flexible, water-resistant, non-yellowing surface

How is Slow-Dri Gel safe and stable for studio or classroom use?

Liquitex formulates its gels to be non-toxic and conform to ASTM D4236, making them appropriate for educational settings and professional studios. The cured film is durable, flexible and resists chipping or cracking when applied correctly.

• Conforms to ASTM D4236 for labeled art materials
• Non-toxic formula that dries clear and stable over time
• Water-resistant once dry and will not yellow with age

Who this is for: Liquitex Professional Slow-Dri Gel suits painters who need longer blending windows—whether you work representationally, in expressive impasto, or create layered glazes. It’s helpful for instructors and students needing predictable drying behavior, and for professional artists seeking to increase paint volume, transparency and finishing resilience without sacrificing paint strength.

Product details:

• Size: 16 fl oz / 473 ml jar
• Use: Extend drying time, increase transparency, add body and gloss
• Compatibility: Intermixable with Liquitex Professional Acrylic Colours and Mediums
• Safety: Non-toxic, conforms to ASTM D4236

Tips: Start by mixing small ratios into your paint to find the desired open time and transparency. For stronger texture, increase proportion; for subtle blending, add less. Clean tools with soap and water while wet. Visit the Liquitex storefront for related gels and acrylic mediums.