Jo Sonja Retarder Medium 250ml

Retarder Medium is an additive to extend the ‘openâ or drying time of Jo Sonja Matte Flow Acrylics or Mediums.  It may be used as both a painting medium and for various techniques such as antiquing.

Directions:
• To use Retarder as a painting medium, lightly moisten the brush with Retarder before picking up paint.
• To further extend working or ‘openâ time, Retarder may also be applied directly to a prepared surface. A mop brush may be used to ensure an even application.
• Mix Retarder directly into palette colors beginning with a ratio of approximately 1 part Retarder to 3 parts of color to delay the drying time of the paint. Adjust ratio as required technique. The more Retarder that is added, the more transparent the color becomes.