Tempera block 2 1/4 inch diam. Kid friendly alternative to egg tempera, these poster board paint blocks have the same consistency as egg tempera but without the risk of allergies and void of toxic substances. Tempera paint is great for crafts and art projects because it's fast drying, long lasting, and easy to clean. It's also not likely to flake, streak, or crack. Tempera paint is water-soluble, and the majority of tempera paint available is non-toxic. The paint's creamy consistency helps it flow smoothly onto paper, cardboard, cloth, wood, or canvas and provides excellent coverage, which allows kids to use a variety of creative painting techniques.Tempera paint is popular in schools and can be used for finger painting or applied with a brush. Most varieties dry to a matte or satin finish. Tempera paint comes in vibrant, bright colors that mix well together, which enables you to create any color you want with just a few basic colors.