How to Make Marbled Effects on Pottery Using Colored Clay ...
Jan 18, 2018· Recommended percentages are between 8% and 12% for Mason stains and between 2% and 4% for pure oxides. After weighing it, mix the powdered colorants with water to make a paste, then work that into the clay and wedge until the color is uniform (1). Note: wear gloves when working the colored paste into the clay.