The fluid retarder medium slows down the drying time of any acrylic paints and will make the paint more juicy. It is more fluid than the gel. Only use up to 20% medium to paint ratio for best performance.

Retarder Gel is a thick gel format of Retarder. It is formulated for use with Tri-Art’s High Viscosity paints and mediums. Use to slow down the drying time of high viscosity paints. Ideal for plein-air painting and mono printing.