Poly(1-butene) Pipe Grade Resin from Mexico
High-density poly(1-butene) resin for piping applications, classified in HTS 3902.90.0050 as other olefin polymers in primary granular form with >95% 1-butene monomer units. It offers superior creep resistance and flexibility for plumbing and gas pipes. Subheading notes place it in 'Other' after polypropylene specifics.
Duty Rate — Mexico → United States
16.5%
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
• Provide density and melt index specs matching 1-butene polymer characteristics
• Avoid bulk packaging that mimics finished pipes (3925 classification risk)
• Certify no plasticizers added, per subheading note for related plastics