ETU Rubber Accelerator (Ethylene thiourea)
ETU (ethylene thiourea) is a prepared rubber accelerator that provides fast vulcanization for neoprene (CR) and chloroprene rubbers used in cables and weatherstripping. It is valued for excellent aging resistance in dynamic applications. This product is classified under tariff item 3812.10.00 as a prepared rubber accelerator.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the ETU is imported as a pure separate chemically defined compound
Pure ethylene thiourea is a heterocyclic organic compound classifiable in Chapter 29.
If the product is a compound plasticizer rather than an accelerator
Compound plasticizers for rubber are classified under a different subheading of heading 3812.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm that the ETU is formulated as a prepared accelerator and not a pure chemical compound, which would fall under Chapter 29
• Provide a safety data sheet (SDS) to CBSA, as ETU has hazardous properties
• Check if the product contains any restricted substances that may require permits under Canadian environmental regulations
Related Products under Tariff item 3812.10.00
Aromatic DTDM Rubber Accelerator (4,4'-Dithiodimorpholine)
DTDM (4,4'-Dithiodimorpholine) is a sulfur donor and accelerator in EPDM and low-sulfur cure systems for automotive weatherstrip. Commercial formulations often include aromatic activators, qualifying it as a prepared rubber accelerator under tariff item 3812.10.00.
Benzothiazole-based Pre-Vulcanization Accelerator
A specialty accelerator designed for pre-vulcanization of latex compounds, used in dipped goods like gloves and balloons. Contains modified 2-mercaptobenzothiazole derivatives, which are prepared rubber accelerators under tariff item 3812.10.00.
CBS Rubber Accelerator (N-Cyclohexyl-2-benzothiazole sulfenamide)
CBS (N-Cyclohexyl-2-benzothiazole sulfenamide) is a delayed-action sulfenamide rubber accelerator used primarily in tire manufacturing and other rubber products. It contains a modified aromatic benzothiazole structure, qualifying it as a prepared rubber accelerator under tariff item 3812.10.00.
DPG Aromatic-Activated Accelerator (1,3-Diphenylguanidine)
DPG (1,3-Diphenylguanidine) is a secondary accelerator and activator containing a diphenyl aromatic structure, used for CR and EPDM compounds. It is a prepared rubber accelerator under tariff item 3812.10.00, providing enhanced curing properties.
DPG Rubber Accelerator (Diphenyl guanidine)
DPG (diphenyl guanidine) is a prepared rubber accelerator used as a secondary accelerator and activator in tire treads and mechanical rubber goods. It enhances the performance of thiazole accelerators during vulcanization. This product falls under tariff item 3812.10.00 as a prepared rubber accelerator.
ETU Accelerator with Aromatic Co-activator
ETU (Ethylene thiourea) formulation with an aromatic co-activator, used for neoprene (CR) adhesives and coatings. The aromatic component presence requires classification as a prepared rubber accelerator under tariff item 3812.10.00.