Sodium Fluorosilicate and Calcium Hydroxide Catalyst from Canada
Specialty catalyst mixture of sodium fluorosilicate and calcium hydroxide for gassing reactions in foundry core production using CO2-hardened silicate binders. HTS 3824.99.39.90 classification for inorganic foundry process chemicals. Enables rapid core formation with excellent dimensional stability.
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
• Prepare fluoride exposure risk assessments for SDS; ensure precise stoichiometric ratios certification; comply with TSCA inventory requirements for fluorosilicates