Zinc Diethyldithiocarbamate (ZDEC)

ZDEC is an aromatic dithiocarbamate used as an ultra-accelerator in rubber vulcanization, promoting rapid cross-linking during processing. It falls under HTS 2930.20.2010 as a thiocarbamate/dithiocarbamate product principally used in rubber manufacturing. This white to cream powder enhances cure speed in natural and synthetic rubbers.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%6.5%
🇲🇽Mexico6.5%6.5%
🇨🇦Canada6.5%6.5%
🇩🇪Germany6.5%6.5%
🇯🇵Japan6.5%6.5%

Alternative Classifications

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

2930.20.10.00Higher: 41.5% vs 6.5%

If aliphatic rather than aromatic structure

Aliphatic dithiocarbamates like zinc dibutyldithiocarbamate classify under the earlier aliphatic subheading.

3824.99Higher: 15% vs 6.5%

If imported as formulated rubber accelerator mixture

Blends with fillers or stabilizers beyond Chapter 29 allowances fall into mixtures of chemicals.

3802.10.00Higher: 39.8% vs 6.5%

If supplied as compounded rubber chemical preparation

Ready-to-use rubber processing preparations are classified by function rather than pure compound.

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Import Tips & Compliance

Provide Safety Data Sheets (SDS) and confirm purity levels meet rubber industry standards to avoid reclassification

Ensure proper HAZMAT labeling as it's a toxic chemical; common pitfall is insufficient transport documentation

Verify end-use declaration as 'rubber processing' to qualify under this specific subheading