Golden OPEN Acrylic Medium Matte 118ml, 237ml, 473ml, 946ml & 3.7L Golden OPEN Acrylic Medium Matte is a slow‑drying acrylic medium designed to extend the working time, flow, and transparency of Golden OPEN Acrylics while producing a smooth matte finish. It enhances the unique long‑open properties of OPEN colours, allowing artists to blend, layer, and manipulate paint far longer than with traditional acrylics. Ideal for glazing, soft transitions, fine detail, and techniques that require extended working time without unwanted gloss. When mixed with OPEN Acrylics, it improves leveling, maintains film integrity, and reduces surface shine. It can also be used alone as a matte, slow‑drying medium for glazing or thinning OPEN colours without sacrificing durability. Features: Extends drying time for OPEN Acrylics Matte finish for a soft, non‑reflective surface Enhances blending, glazing, and smooth transitions Improves flow and leveling Maintains paint film strength and flexibility Ideal for fine detail, glazing, and slow‑dry techniques Can be used alone or mixed with OPEN colours Perfect for artists who want longer working time Best For: Slow‑dry blending Matte glazing and transparent layers Fine detail and soft gradients Extended working time in warm or dry environments Painters transitioning from oils to acrylics
