Aluminum Phosphate and Zinc Phosphate Binder from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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