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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If suitable for sack kraft with specific burst and stretch specs
Paper meeting sack kraft Mullen burst index and stretch criteria (60-115 g/m²) classifies under 4804.21, not condenser.
If made with semichemical hardwood fibers
Semichemical fluting paper with ≥65% unbleached hardwood and CMT crush resistance goes to 4805.11.
If cut to size and perforated for Jacquard machines
Perforated paper cards for machines fall under 4823 per chapter notes, not rolls or sheets of heading 4804.
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Import Tips & Compliance
• Include technical datasheets proving electrical grade specs like dielectric constant to differentiate from general kraft paper
• Declare exact basis weight and confirm uncoated status; exceeding 150 g/m² risks shift to 4804.21 or sack kraft categories
• Watch for contamination; any non-kraft fibers below 80% threshold may reclassify to generic paper under 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.
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.
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.