Zinc Naphthenate Anti-Corrosion Primer from Mexico
Zinc naphthenate, a water-insoluble zinc salt of naphthenic acids, serves as a rust-inhibiting primer for metal surfaces in marine and industrial applications. Classified under HTS 3824.99.75 due to its primary composition as naphthenic acid salts meeting the water-insoluble criterion. It is used in protective coatings rather than as a finished paint.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide detailed chemical composition certificates confirming >50% naphthenic acid salt content
• Check for VOC compliance and include emission test results for environmental clearance
• Label clearly as 'industrial primer base' to prevent classification as ready-to-use paint under Chapter 32