ZMBT Rubber Accelerator (Zinc 2-mercaptobenzothiazole) from Canada
ZMBT serves as retarder, activator, and secondary accelerator across multiple rubber polymers. Classified HTS 3812.10.5050 as prepared rubber accelerator, it enhances adhesion in steel cord-rubber composites for tires. Offers excellent storage stability.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document adhesion promoter testing (peel strength data) supporting accelerator classification
• Specify 70% dispersion in oil formulation common for processing
• Include heavy metal analysis confirming regulatory compliance