Glass Fiber Reinforced Insulation Paper Sheets
Composite sheets of paper layers adhered with fiberglass mesh reinforcement for electrical insulation backing in transformers. The internal reinforcement and lack of surface coating place it under tariff item 4807.00.00.
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 |
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 paper is impregnated with resin or other substances
Coated, impregnated or covered paper and paperboard, would apply if the product is treated.
If the product is a finished electrical component
Other electrical carbon or graphite articles, would apply if the paper is part of a finished insulator.
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 fiberglass mesh is embedded between paper layers, not on the surface
• Ensure no impregnation or coating is applied
• Keep technical specifications showing the reinforcement for CBSA
Related Products under Tariff item 4807.00.00
Adhesive-Bonded Greyboard Rolls
Adhesive-bonded greyboard rolls are made by sticking layers of recycled paper together with an adhesive, forming a rigid composite paperboard. They are not surface-coated or impregnated, and are supplied in rolls for use in packaging, bookbinding, or as backing material. This product falls under tariff item 4807.00.00 because it is a composite paperboard made by lamination with adhesive, without any surface treatment.
Adhesive-Layered Insulation Board
Adhesive-layered insulation board is a composite paperboard made by sticking flat layers of paper together with adhesive, creating a board with thermal insulation properties. It is supplied in sheets and is not surface-coated or impregnated, making it suitable for use as backing behind wallboard. This product is classified under tariff item 4807.00.00 because it is a composite paperboard formed by lamination with adhesive, without any additional surface treatment.
Aramid Fiber Reinforced Electrical Paper Roll
Composite paper roll reinforced with an aramid fiber scrim for high-voltage insulation slot liners. The internal reinforcement and lack of surface coating or impregnation place it under tariff item 4807.00.00.
Asphalt-Core Laminated Sheathing Paper
Asphalt-core laminated sheathing paper is a composite paperboard made by adhering flat layers of paper with an internal asphalt layer, used as underlayment in wall and roof construction. It is not surface-coated or impregnated, and the internal reinforcement qualifies it under tariff item 4807.00.00.
Asphalt-Interlaminated Vapor Barrier Paper
Asphalt-interlaminated vapor barrier paper is a composite paper with internal asphalt lamination, designed to block vapor transmission in building envelopes. It is not surface-coated, and the internal reinforcement qualifies it under tariff item 4807.00.00.
Asphalt-Laminated Roofing Underlayment Paper
Asphalt-laminated roofing underlayment paper is a composite paper in rolls, internally laminated with asphalt between layers of paperboard, serving as a moisture barrier under roofing shingles. It is not surface-coated, and the internal lamination qualifies it under tariff item 4807.00.00.