</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2839.90.10.00/Potassium Waterglass Powder (Technical Grade)/Canada

Potassium Waterglass Powder (Technical Grade) from Canada

Anhydrous potassium silicate powder derived from spray-dried liquid, used in foundry molds and refractory cements. Classified under HTS 2839.90.1000 as a commercial potassium silicate, meeting Chapter 28 definitions for inorganic compounds. Ideal for applications needing high-temperature binding.

Duty Rate — Canada → United States

13.1%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Calculate with your customs valueVerify classification with AI

Import Tips

• Provide assay certificates showing >95% silicate content to distinguish from mixtures

• Dust hazard precautions required; label as irritant and ensure proper packaging for air/sea freight

Potassium Waterglass Powder (Technical Grade) from Canada — Import Duty Rate | HTS 2839.90.10.00