Winsor & Newton Galeria Acrylic Extender

Galeria Gloss Medium – High clarity and even flow. Boosts the brilliance and transparency of the colour as well as improving adhesion and durability. Ideal for glazing or applying thick, highly transparent layers of brilliant colour for depth and “stained-glass” effect.

Galeria Matt Medium – This medium creates a flat, even finish. It maintains brilliance of colour while boosting transparency, adhesion and durability.