Unsaturated Polyester Electrical Insulation Board from China
Rigid boards of noncellular unsaturated polyester for electrical panel insulation and transformer covers. Classified HTS 3920.63.2000 as other polyester sheets. High dielectric strength.
Duty Rate — China → United States
43.3%
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
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Include dielectric strength test data for customs verification
• Classify as semi-finished, not electrical apparatus parts
• Watch copolymer blends; may shift if another monomer predominates