High-Density Kraft Capacitor Separator Paper
Unbleached, high-density kraft paper in sheets for separating capacitor electrodes, weighing 120 g/m² or less. It qualifies as 'other' condenser paper in 4804.31.20.00 for its role in energy storage devices, made from ≥80% sulfate wood fibers.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If weighing >115 g/m² with kraftliner Mullen burst strength
Kraftliner paper >115 g/m² meeting minimum Mullen bursting strength classifies under 4804.11.
If lightweight coated on both sides
Light-weight coated paper ≤72 g/m² with mechanical wood fibers >50% moves to 4810.22.
If imported as parts of power capacitors
Insulating paper as capacitor parts is classified under end-use heading 8547 or 8504 for electrical apparatus.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Submit affidavits from manufacturer confirming ≥80% chemical sulfate fiber content to meet kraft definition
• Avoid bulk packaging that mimics retail sets; declare as rolls/sheets to stay in 4804, not converted articles
• Test for ash content and impurities; high ash may disqualify from condenser specs and shift to 4805
Related Products under HTS 4804.31.20.00
Unbleached Kraft Condenser Tissue Paper
Thin unbleached kraft paper designed for use as condenser tissue in electrical capacitors, weighing under 150 g/m² and in rolls or sheets. It meets the specifications for 'other' kraft condenser paper under 4804.31.20.00 due to its high purity and dielectric properties from sulfate wood fibers. This paper is essential for insulation in high-voltage capacitors.
Electrical Grade Kraft Condenser Paper
Unbleached kraft paper specifically engineered for capacitor insulation, in rolls under 150 g/m², with high tensile strength and low moisture absorption. Classified under HTS 4804.31.20.00 as 'other' condenser paper, distinct from standard kraft due to its electrical insulation properties derived from sulfate pulp.
Capacitor Grade Unbleached Kraft Separator Sheet
Sheets of unbleached kraft paper optimized as separators in electrolytic capacitors, under 150 g/m². Classified in HTS 4804.31.20.00 for other condenser applications, leveraging kraft's strength and purity.
Transformer Condenser Insulation Kraft Paper
Specialty unbleached kraft paper for insulating windings in oil-immersed transformers and capacitors, in rolls ≤150 g/m². Falls under 4804.31.20.00 as other unbleached condenser paper due to its electrical performance from kraft pulp process.