Bitumen Impregnated Low-Density Fiberboard Panels from China
Low-density fiberboard (LDF) panels with density between 0.35-0.5 g/cm³, made from wood fibers bonded with resins and impregnated with bitumen for water resistance. Classified under HTS 4411.94.00.10 as fiberboard not mechanically worked or surface covered, specifically impregnated with bitumen. Used primarily in construction for underlayment and roofing substrates.
Duty Rate — China → United States
Rate breakdown
Import Tips
• Verify density certification (0.35-0.5 g/cm³) and bitumen impregnation content via lab testing to confirm HTS 4411.94.00.10 classification
• Provide manufacturer's specs confirming no mechanical working or surface covering; surface-covered variants shift to other subheadings
• Include origin certificates as wood products may face Lacey Act declarations and phytosanitary requirements