Transformer Oil-Impregnable Condenser Paper from Mexico
Specialty uncoated paper in rolls, 40-80 g/m², with high oil absorption for impregnation in power transformers and high-voltage capacitors. It qualifies as condenser paper under HTS 4805.91.20.00 due to its tailored purity and low weight for electrical insulation.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit impregnation compatibility certificates; pitfall is reclass to 4811 if pre-impregnated with resins
• Ensure declaration specifies 'not further worked'—slitting to narrow widths may trigger 4821 review
• Check ash content <1% and uniform thickness for condenser grade validation