MOLD MATERIAL SELECTION CAN SIGNIFICANTLY AFFECT PLASTIC MOLD PERFORMANCE. BERYLLIUM COPPER ALLOYS OFFER UNIQUE COMBINATIONS OF PROPERTIES INCLUDING HIGH-STRENGTH AND SUPERIOR THERMAL CONDUCTIVITY. DESIGN OF PLASTIC MOLDS TO TAKE ADVANTAGE OF THE PROPERTIES OF BERYLLIUM COPPER MOLD MATERIALS RESULTS IN SIGNIFICANT REDUCTIONS IN CYCLE TIME AND BETTER PLASTIC PART DIMENSIONAL CONTROL. THERE ARE SEVERAL KEY FACTORS IN MOLD DESIGN INCORPORATING BERYLLIUM COPPER INSERTS AND COMPONENTS FOR BETTER THERMAL MANAGEMENT. A REVIEW OF THESE CONSIDERATIONS REINFORCED BY CURE STUDIES DEMONSTRATING REDUCED CYCLE TIME AND DESIGN FREEDOM ARE PRESENTED.