Tri-Art, Retarder Gel, 250ml
Tri-Art's Retarder Gel is a thick gel format of it's Retarder (i.e. the Retarder is a water-based medium essential to airbrush application). This Retarder Gel is formulated for use with Tri-Art's High Viscosity paints and mediums and is ideal for plein-air painting, mono printing and any other technique that requires paint to be wet for longer periods of time. For optimal results, do not use more than 20% Retarder Gel with any quantity of paint.