2909.60.50.00/2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane/Mexico

2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane from Mexico

This dialkyl peroxide serves as a high-temperature initiator for crosslinking polyethylene and silane-modified polymers. HTS 2909.60.5000 covers it as a chemically defined ether peroxide, with permitted anticaking stabilizers per Chapter 29 note (f).

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

Calculate with your customs value Verify with the Tariff Assistant

Import Tips

• Declare exact chemical name and CAS (78-63-7) for precise HTS verification

• Provide thermal stability data showing SADT >65°C for reduced shipping restrictions

• Distinguish from Chapter 39 polymer masterbatch by proving pure paste/liquid form