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%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Hydrolytic stability testing for hot water claims
• PET vs PBT polymer distinction docs
• Electrical safety certifications (UL, CSA)