Polybutylene Ether Pellets from Canada
Polybutylene ether pellets are aliphatic polyethers derived from 1,4-butanediol, classified in HTS 3907.29.00.00 as other polyethers with >95% ether content by weight in primary form. Used in hot-melt adhesives and flexible tubing.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Certify no plasticizer additives; 3920.43 notes impact classification if present
• Declare melt flow index to confirm processability as primary thermoplastic
• Separate from polyester PBT; ether vs ester distinction critical via spectroscopy