Hydrocarbon Novolac Cyanate Ester Resin Granules from Mexico
A thermosetting resin derived from hydrocarbon novolac cyanate ester, specified under HTS 3911.90.35.00 for its aromatic-modified structure in primary granular form. Used in aerospace composites for superior heat resistance and low dielectric properties. Meets chapter note requirements for polymers obtained from modified aromatic monomers.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Submit manufacturer's specification confirming 'hydrocarbon novolac cyanate ester' identity and thermosetting properties
• Check for plasticizer content per subheading 3920.43 note if additives present
• Avoid classifying as general phenolic resins under 3909.40 which excludes cyanate esters