Semi-Colloidal Graphite Heat Transfer Compound from Japan
Thick paste of micronized artificial graphite in silicone grease for thermal interface between CPU heatsinks and processors. Classified HTS 3801.90.0050 as semi-colloidal graphite preparation. Enhances heat dissipation in electronics assembly.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Thermal conductivity specs (>5 W/mK) confirm graphite functionality over silicone base
• RoHS compliance certification required; heavy metals in graphite source common issue
• Particle size distribution certificate prevents cosmetic product misclassification