When making molds for food it is important to remember that conventional sealing agents from a hardware store should not be used. These materials should be avoided because they usually contain toxic ingredients that are not approved for direct food contact. Seal-Dit™ is made from a blend of food grade waxes and specifically designed to serve as a non-toxic sealer. Seal-Dit™ is also an excellent sealing agent for general moldmaking that is not meant for food applications.