Aluminum Phosphate Gel from Canada
Aluminum phosphate gel (AlPO4·2H2O) is a colloidal suspension of aluminum phosphate used as a binder in refractory ceramics and catalyst supports. Classified under HTS 2835.29.10.00 as a chemically defined aluminum phosphate in gel form. It provides adhesion and thermal resistance in high-temperature 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
• Provide chemical analysis confirming >50% aluminum phosphate content to prevent mixture classification
• Include viscosity and pH specifications in commercial invoice for customs valuation