Jo Sonja's Retarder Medium is an additive used to extend the "open" or drying time of Jo Sonja's Colours and Mediums. Acrylic paints dry rapidly in conditions of low humidity and/or high temperature. Both air conditioning and winter heating reduce the levels of humidity in a room causing acrylic paints to dry faster.

Directions:

Add Retarder to your paint by dipping your brush into it as you paint, or apply over the entire surface area for wet-on-wet techniques.
Blend with a mop brush to ensure an even coat without puddles.
Retarder may be mixed directly into your paints.
When used for antiquing, dilute your colours with Retarder instead of water for a longer open time. Earth colours are popular for antiquing.

Available in 60ml and 250ml bottles

Quote product reference: J58023