2839.19.00.00/Colloidal Sodium Silicate Dispersion/Mexico

Colloidal Sodium Silicate Dispersion from Mexico

Stable colloidal dispersion of sodium silicate nanoparticles for precision casting. Under HTS 2839.19.00.00 as commercial sodium silicate solution. Used in investment casting shell building.

Duty Rate — Mexico → United States

11.1%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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Import Tips

• Colloidal stability certification; clean room packaging; shelf life documentation