Accelerator TMTM 98% Powder from Canada
High-purity 98% tetramethylthiuram monosulfide powder (TMTM) is a separate chemically defined organo-sulfur compound under HTS 2930.30.30.00. Used in the rubber industry as a delayed-action accelerator for efficient vulcanization of natural and synthetic rubbers. Its monosulfide structure provides solubility in rubber and optimal curing control.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include certificate of analysis confirming 98% purity to avoid reclassification; use UN-approved packaging for powders
• Pitfall: Dusting issues during transport—add anti-dusting agents only if not rendering it for specific use