Semi-Colloidal Graphite Heat Transfer Compound from China
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 — China → United States
42.4%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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