Acoustic Bitumen-Impregnated Fiberboard Panels from Canada
Fiberboard panels with bitumen impregnation for sound absorption, density controlled at 0.35-0.5 g/cm³, not mechanically worked. Precisely matches HTS 4411.94.00.10 definition for low-density impregnated fiberboard. Used in studio and theater ceiling applications.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certify acoustic performance doesn't require surface perforations (would exclude from classification)
• Maintain import records showing resin binder <3% if questioned on organic substances
• Test for NRC ratings if marketing as acoustic product