Jesmonite pigment bright yellow will dye your Jesmonite AC100 a AC730 material. Maximum recommended amount of pigment in the material is 2 %. Exceeding this ratio can lead to deterioration of the product's properties. You can combine pigments with each other in order to achieve the desired shade. We don’t recommend using pigment-dyed products outdoors or exposing them to strong sunlight - pigments are of organic character and are not UV-resistant.