Made With Acrylic Resin For Adjusting How The Paint Works, Feels And Looks. Acrylic Resin Maintains Or Adds Stability To The Paint. They Can Be Used To Prepare The Canvas, Change The Texture, Modify The Flow, Alter The Functional Properties Of The Colour Or Protect Your Painting. Made Without Acrylic Resin To Adjust The Chemistry Of Acrylic Paints. With Most Acrylic Mediums, You Can Add As Much As You Like To Your Colour Without Weakening The Stability Of The Paint, While Additives Will Dilute The Strength. You Need To Be More Careful About How Much You Mix Into The Paint.