Boron Carbide Abrasive Micro-Powder F220 from Canada
F220 grit boron carbide micro-powder standardized for precision lapping and polishing of semiconductors and optics. Classified as chemically defined boron carbide under HTS 2849.90.10.00 before final abrasive article assembly.
Duty Rate — Canada → United States
13.7%
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
• Include FEPA or ANSI grit size certification to distinguish from industrial mixtures
• Declare as 'not for consumer use' to avoid retail packaging classifications
• Monitor particle size distribution; ultrafine powders (<1 micron) may require respiratory protection declarations