Compression and transfer molding is accomplished by placing a pre-weighed amount of material in a matched metal mold and closing the mold.The heat and pressure cause the material to liquify and flow into the voids in the tool where it chemically reacts and hardens into the final shape. Very large shapes can be molded in compression presses.
Part Cost – moderate
Tooling Cost – high
Production Rate – moderate
Thermoset materials are very strong
Thermosets are very heat resistant at a moderate cost
Greatly reduced shrinkage eliminates design limitations.