Tungsten Silicophosphate Binder from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, 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