Potassium Waterglass Powder (Technical Grade) from China
> This is anhydrous potassium silicate powder derived from spray-dried liquid, used in foundry molds and refractory cements. It is a commercial alkali metal silicate of potassium in solid form, classifiable under this tariff item as a separate chemically defined compound. The product does not contain added stabilizers or other substances that would remove it from Chapter 28.
Duty Rate — China → Canada
0%
Import Tips
• > Classify the product based on its chemical composition (potassium silicate) and physical form (powder)
• Provide a certificate of analysis to confirm the absence of added organic binders
• Ensure the powder is not classified as a refractory preparation under Chapter 38