These R&F Encaustic Paints 333ml cakes are composed of beeswax and resin. They can be applied to a molten surface and fused to create a lustrous enamel effect. Their exquisite visual properties make it perhaps the most beautiful paint ever known. They are also the most durable of all artists paints, since wax is impervious to moisture and over time will retain all the freshness of a newly finished work. Encaustic painting does not require solvents of any kind. As a result, a number of health hazards are reduced or eliminated.