Tungsten Silicophosphate Binder from Canada
Chemical binder combining tungsten phosphates with alkali silicates for precision investment casting molds. Offers superior green strength and thermal shock resistance. 3824.99.3500 for multi-inorganic tungsten preparations.
Duty Rate — Canada → United States
16.5%
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
• Test pH and silicate ratio to confirm inorganic nature vs. organic resins
• Shelf life typically 6-12 months; declare manufacture date on commercial invoice
• Avoid temperature extremes during shipping to prevent gelling