Tungsten Silicophosphate Binder from Japan
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 — Japan → United States
16.5%
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
• 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