Tetenal Superfix Hardener from Mexico
A liquid hardener added to fixing baths to strengthen emulsion on films and papers, preventing softening during washing. Classified in HTS 3707.90.32 as a chemical preparation for photographic processing, retailed in convenient dropper bottles.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include hardening agent specs (e.g
• alum content) linked to photo emulsion protection
• Declare as non-hazardous if diluted; concentrates need proper ORM-D labeling