Runflex TBBS Vulcanization Accelerator

Runflex TBBS is N-tert-Butyl-2-benzothiazolesulfenamide meeting industrial specifications for rubber curing, classified under HTS 2934.20.0500 due to its specific benzothiazole heterocyclic structure. Essential for producing conveyor belts, hoses, and seals.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+10.0%16.5%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪Germany6.5%+10.0%16.5%
🇯🇵Japan6.5%+10.0%16.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3812.10Lower: 15% vs 16.5%

If imported in compounded form with zinc oxide or stearic acid for rubber

Rubber compounding ingredients mixtures classified under specific 3812 subheadings rather than individual chemicals.

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Import Tips & Compliance

Provide FTIR or HPLC analysis confirming benzothiazole ring presence to distinguish from CBS (2934.20.1000)

Declare exact CAS number (2338-96-1) on commercial invoice to facilitate automated customs processing