Freestanding large MOMThis mold is freestanding at half inch in depth Never scrub your molds with anything it will scratch the mold. Molds are heat resistant up to 450 degrees and is suitable for casting low temperature melt metal alloys. Before storing, the mold should be cleaned with a soap solution and wiped fully dry (no scrubbing or scratching materials). Molds should be stored on a level surface in a cool, dry environment.