PBT Polybutylene Terephthalate Tubing from Mexico
Engineering PBT tubing for electrical insulation and hot water lines. Unreinforced 3917.32.00, no fittings; polyester polymer classification.
Duty Rate — Mexico → United States
13.1%
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
• Hydrolytic stability testing for hot water claims
• PET vs PBT polymer distinction docs
• Electrical safety certifications (UL, CSA)