碳-碳复合材料已被评估为高温热塑性复合材料固结的工具材料。在750华氏度和200磅/平方英寸的温度下，使用碳纤维加工PEEK/碳纤维增强复合材料板的初步试验已经成功。碳-碳性能在韧性和弯曲强度等重要方面优于最好的石墨模具材料（ATJ型）。据信，这些特性可以利用，以利于制造商。

CARBON-CARBON COMPOSITES HAVE BEEN EVALUATED AS TOOLING MATERIAL FOR CONSOLIDATION OF HIGH-TEMPERATURE THERMOPLASTIC COMPOSITES. INITIAL TESTS RUN USING CARBON- CARBON TO PROCESS PEEK/CARBON FIBER REINFORCED COMPOSITE PANELS AT 750F AND 200 PSI HAVE BEEN SUCCESSFUL. CARBON- CARBON PROPERTIES ARE SUPERIOR TO THOSE OF THE BEST GRAPHITE TOOLING MATERIALS (TYPE ATJ) IN IMPORTANT WAYS INCLUDING A TOUGHNESS AND FLEXURAL STRENGTH. IT IS BELIEVED THAT THESE PROPERTIES CAN BE EXPLOITED TO THE ADVANTAGE OF THE FABRICATOR.