Aluminum Phosphate and Zinc Phosphate Binder from Canada
Two-component phosphate binder system combining aluminum phosphate and zinc phosphate for ceramic shell molds in investment casting. Under HTS 3824.99.39.90 as inorganic mixture for precision foundry applications. Provides high-temperature resistance up to 1700°C for aerospace turbine blades.
Duty Rate — Canada → United States
60%
Rate breakdown
9903.03.1450%Articles the product of Canada as provided in subdivision (b)(3) of U.S. note 51 to this subchapter
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 phosphate purity >98% for investment casting specs; include gel time test results; ensure corrosion-resistant packaging for acidic phosphates