N-50 Aluminum Grain is a coarse (145 Mesh) aluminum grain that is recommended for filling cast epoxy vacuum form molds that require the drilling of small air evacuation holes. It is also used to back up epoxy and E-Glass laminates to improve thermal conductivity around copper tubing temperature control lines. N-50 Aluminum Grain is also an ideal filler when high impact and compressive strength are required in tools such as plastic injection molding or compression molding. N-50 is recommended for use with EL-337, EC-433-3, EC-433-4 or EC-415 high temperature epoxy casting systems.