Slow Down Drying Time with the Best Retarders for Acrylic Paint
How to Use an Acrylic Paint Drying Retarder: (The Right Way) - At Home With Eri
Amazon.com: U.S. Art Supply Acrylic Retarder Acrylic Medium, 200ml Tube (6.7 Ounces) - Mixed with Color gives you longer Working Times : Arts, Crafts & Sewing
Camel Acrylic Paint Retarder (100ml) - Stationery Guy
Liquitex Slow-Dri Fluid Retarder, 4 oz. - Walmart.com
Amazon.com: Golden Acrylic Medium, Retarder, 16 Oz