Aromatic DTDM Rubber Accelerator (4,4'-Dithiodimorpholine) from Canada
DTDM serves as a sulfur donor and accelerator in EPDM and low-sulfur cure systems for automotive weatherstrip. While primarily morpholine-based, commercial formulations often include aromatic activators qualifying for 3812.10.1000.
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
• Confirm aromatic activator content via GC-MS analysis; ensure odor control specifications met; provide EPDM scorch safety data