TBBS Rubber Accelerator (N-tert-Butyl-2-benzothiazolesulfenamide) from Mexico
TBBS is the industry standard accelerator for passenger car tires due to balanced scorch and cure rate. HTS 3812.10.5050 classification applies to this prepared sulfenamide accelerator providing superior treadwear resistance. Widely used in NR/SBR tire compounds.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include tire industry specifications (ASTM D4817 equivalent) confirming accelerator grade
• Provide batch consistency data (Rheometer curves) for quality verification
• Ensure free-flowing powder specifications prevent caking during ocean transport