2839.90.50.00/Anhydrous Sodium Silicate Powder/Mexico

Anhydrous Sodium Silicate Powder from Mexico

Dehydrated powder of sodium silicate used in specialty ceramics and investment casting. Classified in HTS 2839.90.5000 as an 'other' form of commercial sodium silicate, lacking water of hydration.

Duty Rate — Mexico → United States

13.1%

Rate breakdown

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

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Import Tips

• Confirm anhydrous status with moisture analysis to prevent hydrate misclassification

• Dust hazard precautions required; use proper SDS for customs clearance

• Industrial buyers often need end-use certificates for verification