Sodium Silicate Solution (Water Glass) from China
A clear, viscous liquid solution of sodium silicate (Na2SiO3) in water, commonly known as water glass. It falls under HTS 2839.19.00.00 as a commercial sodium silicate, other than sodium metasilicates, used primarily in industrial applications. This chemically defined inorganic compound is supplied in liquid form for various binding and sealing purposes.
Duty Rate — China → United States
38.6%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify concentration and ratio (e.g
• SiO2:Na2O) on certificates of analysis for proper classification; ensure packaging complies with DOT hazardous material regulations if applicable; obtain supplier declarations confirming it's not a metasilicate to avoid reclassification