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.

Process Characteristics
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.
Examples
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