Wet Machine Electrical Insulation Board
Uncoated wet machine board exceeding 225 g/m², designed for electrical insulation in transformers and motors. The board is made from purified wood fibers that provide high dielectric strength, and it is not further worked beyond the processes allowed in Chapter 48 Note 3. This product is classified under tariff item 4805.93.00 as other uncoated paperboard weighing 225 g/m² or more.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the board is impregnated or coated with insulating materials
Paper impregnated with substances other than diagnostic reagents falls under heading 48.11, which covers paper coated, impregnated, or covered with plastics or other materials.
If the board is part of an electrical insulator assembly
Electrical insulators of heading 85.45 include articles of paperboard when they function as finished insulators, not just raw board.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the product is uncoated and has no additional treatments (e.g
• resin impregnation) that would shift classification to another heading
• Have documentation ready showing the weight exceeds 225 g/m² and the rolls or sheets meet the size criteria of Chapter 48 Note 8
• If the board is impregnated with insulating resins, consider whether heading 48.11 or Chapter 39 applies
Related Products under Tariff item 4805.93.00
Battery Separator Pressboard
Battery separator pressboard is a specialized uncoated pressboard weighing over 225 g/m², made from high-purity sulfate pulp. It is used as a separator material in lead-acid batteries, providing electrical insulation and mechanical strength. This product falls under tariff item 4805.93.00 as other uncoated paperboard, not further worked than specified in Chapter Note 3.
Black Construction Paper Pad
A pad of black construction paper sheets, each weighing 225 g/m² or more, uncoated and not further worked. The paper is designed for school art projects and modeling, offering high opacity and strength for heavy use. It falls under tariff item 4805.93.00 as other uncoated paperboard weighing 225 g/m² or more.
Chipboard 350 g/m² Uncoated
Chipboard 350 g/m² is a dense, uncoated paperboard made from recycled fibers, used for book covers and backing boards. It provides rigidity and durability, making it suitable for various packaging and publishing applications. This product falls under tariff item 4805.93.00 as other uncoated paperboard weighing 225 g/m² or more.
Chipboard Folding Carton Stock Rolls
Uncoated chipboard in rolls weighing more than 225 g/m², used as base stock for die-cut folding cartons. This product is made from recycled fibers and is not further worked or processed beyond the finishing operations allowed under Chapter Note 3. It is classified under tariff item 4805.93.00 as other uncoated paperboard weighing 225 g/m² or more.
Density Pressboard Grade A
Density pressboard Grade A is a compressed, uncoated pressboard with a density of at least 1.1 g/cm³, weighing between 225 and 500 g/m². It is used for battery separators and electrical insulation due to its high mechanical strength and dielectric properties. This product is classified under tariff item 4805.93.00 as other uncoated paperboard, not further worked.
Duplex Uncoated Folding Carton Board
Two-ply uncoated duplex board exceeding 225 g/m² in sheets, used for durable folding cartons. The board provides layered strength for shipping boxes and other packaging applications. It is classified under tariff item 4805.93.00 as other uncoated paperboard weighing 225 g/m² or more, not further worked or processed.