Home Products Alloys MoldMAX Alloys MoldMax Alloys MoldMAX LH MOLDMAX LH® MoldMAX LH® is a premium copper mold alloy that provides hardness and strength comparable with standard AISI P-20 tool steel and thermal conductivity five times higher. USES AND APPLICATIONS MoldMAX LH is commonly used for injection mold cores and cavities, as well as pinch-offs for blow molds. AVAILABLE FORMS, SIZES AND TOLERANCES MoldMAX LH is available in rounds, square and rectangular bars, plate and forged rings. For more information, download our MoldMAX LH data sheet. SPECIFICATIONS AND STANDARDS MoldMAX LH is certified to hardness and conductivity only. LEARN MORE ABOUT MOLDMAX LH® For more information about MoldMAX LH or other Materion plastic tooling alloys, contact Materion Performance Alloys today.