PB Pipe Grade Polybutylene Pellets from Canada
PB Pipe Grade Polybutylene Pellets are unmodified polybutylene homopolymer granules for plumbing pipe extrusion, with butene-1 units comprising 97% by weight. This primary form polymer offers superior stress crack resistance for hot/cold water systems. Falls under 3902.90.0010 as it meets the polybutylene definition in primary forms.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide manufacturer's spec sheet confirming polybutylene composition to avoid misclassification as polyethylene (3901.10)
• Label shipments clearly as 'primary form polymers, not for retail' to prevent 3921 other plastics confusion