Citric Acid Stainless Steel Passivation Gel from Mexico
Thixotropic citric acid gel for passivation of stainless steel welds and surfaces, removing free iron without chlorides. Classifies under 3810.10.00.00 as pickling preparation restoring chromium oxide layer on metal. Used in pharmaceutical equipment fabrication.
Duty Rate — Mexico → United States
15%
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
• Include ASTM A967 passivation test method compliance certificates
• Biodegradable formulation aids disposal compliance
• Gel form prevents dripping on vertical surfaces during application