METAPOR® is a composite material made of aluminum granules and epoxy resin. The material is air-permeable over the entire surface due to its micro-porous structure allowing for unique design considerations for prototype and production thermoform tools. In contrast to sintered materials, the pores do not close off after machining allowing excellent definition and surface quality. METAPHOR®-HD 100 AL is the high density grade of the material that is recommended for use in applications where the surface characteristics of the finished part are critical. HD 100 AL is specially formulated to have a smooth surface yielding better transparency on clear or translucent parts. The material is also recommended for use with acrylics and in twin-sheet applications. Information Provided by CMT Materials, Inc. |