Density Pressboard Grade A
Grade A density pressboard, 225-500 g/m², compressed to 1.1 g/cm³ min, uncoated sheets for battery separators and electrical insulation. HTS 4805.93.20.00 covers this as 'other' pressboard not further processed per note 3.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made mainly from recovered waste paper with Mullen burst index ≥2 kPa·m²/g
Recycled content dominance classifies as testliner under 4805.24, not virgin pressboard.
If cut to precise sizes with printed specifications
Cut sheets or cards for specific machinery use fall under 4820 registers/ledgers, per chapter note.
If uncoated writing paper grade over 225 g/m²
If suitable for writing/printing without further processing, moves to 4802 for other uncoated papers.
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Import Tips & Compliance
• Lab certify density >1.0 g/cm³ and grammage; discrepancies lead to 4805.92 reclass if under 225 g/m²
• Declare sulfate pulp content >80% if applicable to distinguish from semichemical under 4805.11
Related Products under HTS 4805.93.20.00
Transformer Pressboard
High-density pressboard weighing over 225 g/m², made from compressed wood fibers, used as insulation in oil-immersed electrical transformers. It falls under HTS 4805.93.20.00 as uncoated pressboard, not further worked beyond note 3 specifications, in sheets for electrical applications.
High-Density Insulation Pressboard
Uncoated pressboard sheets >225 g/m², high density 1.25 g/cm³, for switchgear insulation and panel boards in power distribution. Fits 4805.93.20.00 as pressboard in rolls/sheets, no additional working.
Virgin Pulp Pressboard
100% virgin softwood pulp pressboard, 400 g/m² sheets for high-strength electrical applications. Classed in 4805.93.20.00 as other uncoated pressboard over specified weight.
Electrical Presspahn Board
Presspahn is a specialized pressboard from 100% sulfate wood pulp, density 1.0-1.2 g/cm³, over 225 g/m², in sheets for dielectric insulation in high-voltage equipment. Classified under 4805.93.20.00 as uncoated pressboard meeting chapter note 3, ideal for motors and generators.
Sulfate Process Pressboard Sheets
Pressboard from chemical sulfate pulp, 300 g/m², machine-pressed sheets for marine electrical panels. HTS 4805.93.20.00 for other uncoated pressboard ≥225 g/m², aligning with kraft-like strength.
Battery Separator Pressboard
Specialty pressboard >225 g/m² for lead-acid battery separators, high purity sulfate pulp, uncoated. Under 4805.93.20.00 as pressboard not further worked, essential for industrial batteries.