Aerospace-Grade Cyanate Ester Resin from Mexico
Hydrocarbon novolac cyanate ester resin meeting HTS 3911.90.35.00 specification for thermosetting aromatic polymers in primary forms. Critical for RTM processing in aircraft radomes. Low moisture absorption and high char yield characteristics.
Duty Rate — Mexico → United States
10%
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
• Check ITAR/EAR export control status even for imports; may require additional licenses
• Confirm viscosity specs indicate primary liquid resin form
• Avoid 3909.50 classification for non-novolac cyanates