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all-purpose
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This complete collection includes every brush used across the Academy
Jo Sonja Retarder Medium Size:250ml all-purposeLiquid retarder that can be added to acrylic colours to prolong drying tim. For best results add 1 part Retarder to 3 parts acrylic colour to delay the drying time of paint. Mix thoroughly before painting. The retarder is an additive to extend the drying time Acrylic paints or mediums. It can be used as both a painting medium and for various techniques such as antiquing. Can be diluted with water if required. Perfect for Antiquing Techniques as taught