MBTS Rubber Accelerator (Dibenzothiazyl disulfide) from Japan
MBTS serves as a primary or secondary accelerator in rubber compounding, particularly for EPDM and butyl rubber applications. Classified under HTS 3812.10.5050 as a prepared rubber accelerator, it provides scorch safety and functions well in neutral or alkaline systems. Commonly used in automotive seals, hoses, and belting.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include vulcanization test data demonstrating accelerator performance to distinguish from basic thiazole chemicals
• Comply with DOT hazardous material shipping requirements (often Class 9) and ensure UN proper shipping name accuracy
• Maintain certificates of analysis showing minimum purity levels (typically 98%) required for accelerator classification