Sodium Silicate Solution (Water Glass) from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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