Felt paper and paperboard
Other uncoated paper and paperboard, in rolls or sheets, not further worked or processed than as specified in note 3 to this chapter: > Felt paper and paperboard
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 4805.50.00.00
Asphalt Saturated Felt Paperboard
Dense felt paperboard saturated with asphalt, used primarily as underlayment in roofing applications to provide waterproofing and protection. It falls under HTS 4805.50.00.00 as felt paperboard, which is a type of uncoated paperboard formed by compressing fibers into a felted structure without further processing beyond note 3 specifications. Typically weighs over 200 g/m² and supplied in rolls for construction use.
Roofing Tar Paper Felt
Heavyweight felt paper impregnated with tar or bitumen for use as a moisture barrier in roofing systems under shingles. Classified under HTS 4805.50.00.00 as uncoated felt paper in rolls, meeting the felted fiber structure without additional processing. Common grammage 100-300 g/m² with high tear resistance.
Millboard Felt Paper
Thick, dense felted paperboard known as millboard, used for insulating panels, bookbinding, and gaskets. HTS 4805.50.00.00 covers this uncoated felt paperboard in sheets or rolls, produced by felting wood or rag fibers without chemical coatings. Typically 500-1000 g/m² with high compressive strength.
Bookbinding Grayboard Felt
Recycled fiber felt paperboard, gray in color, used as rigid covers and spines in bookbinding. Classified in HTS 4805.50.00.00 as uncoated felt paperboard sheets, typically 800-1200 g/m², chipboard-style but distinctly felted.
Acoustic Ceiling Tile Felt Paper
Felted paperboard base layer for acoustic ceiling tiles, providing sound absorption before final surfacing. HTS 4805.50.00.00 for uncoated felt paperboard in sheets, 300-500 g/m², fibrous structure traps sound waves.
Rag Felt Paperboard
Traditional felt paperboard made from cotton rag fibers, used for artists' supports and premium gaskets. Under HTS 4805.50.00.00 as specialty uncoated felt paperboard sheets, prized for purity and texture.
Insulating Felt Paperboard
Low-density felt paperboard designed for thermal and acoustic insulation in building walls and machinery. Under HTS 4805.50.00.00 as uncoated felt paperboard, featuring interlaced fibers for air-trapping properties, supplied in rolls over 150 g/m².
Gasket Felt Paper Sheets
Compressed felt paper sheets cut for manufacturing flat gaskets in automotive and machinery seals. HTS 4805.50.00.00 applies to this uncoated paperboard felt, not further worked beyond sheets, with basis weights 200-600 g/m².