Product Description Brighter and bluer than Cadmium Green. Favored by the French Impressionists. The original, no longer made, was arsenic based and very toxic. Encaustic paint is composed of pigment, beeswax and resin. It is applied molten to a surface and fused to create a lustrous enamel effect. It is among the most durable of all artists’ paints, since wax is impervious to moisture and over time retains all the freshness of a newly finished work.. Once the surface has cooled, the paint has reached a permanent finish, but the painting can also be revised and reworked at any time — whether seconds or years later. Encaustics need to be applied to a rigid substrate such as a panel or hard board. Warning for CA Residents Prop 65: WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov