Wingstay L Antioxidant for Rubber
Wingstay L is a liquid styrenated phenol antioxidant containing modified aromatic structures, used in SBR rubber for protection against thermal oxidation in automotive parts. It is classified under tariff item 3812.39.00 as an anti-oxidizing preparation for rubber, not elsewhere specified. The liquid form and aromatic content do not qualify it as a separate chemically defined compound under Chapter 38 exclusions.
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 product is used primarily as a rubber accelerator
Accelerators are a separate category in heading 3812, and the product's primary function determines classification.
If the product is a chemical preparation not specifically covered by heading 3812
Other chemical products not elsewhere specified may fall under heading 3824.
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
• Classify Wingstay L as an anti-oxidizing preparation, not as a pure chemical, since it is a mixture of styrenated phenols
• Keep documentation showing the product's use in rubber compounding to support the classification
• Check if the liquid form requires special handling declarations for transport
Related Products under Tariff item 3812.39.00
4020NA Rubber Stabilizer Concentrate
> A rubber stabilizer concentrate containing N-(4-ethoxymethylphenyl)-N'-isopropyl-p-phenylenediamine mixtures, specifically formulated for agricultural tires to enhance flex fatigue resistance. This product acts as an anti-oxidizing preparation for rubber, falling under the compound stabilizers category of heading 38.12.
6PPD Rubber Antidegradant Premix
> A liquid aromatic antioxidant premix containing 6PPD, used in natural rubber for protection against dynamic weathering in truck tires. This product is an anti-oxidizing preparation for rubber, falling under tariff item 3812.39.00.
6PPD Rubber Antioxidant Mixture
> A mixture of N,N'-diaryl-p-phenylenediamine compounds, primarily 6PPD, used as an antiozonant and antioxidant in tire manufacturing. It protects rubber from oxidative degradation and ozone cracking, qualifying as an anti-oxidizing preparation for rubber under tariff item 3812.39.00.
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ADK Stab AO-80 Masterbatch is a liquid alkyl ester benzotriazole antioxidant master batch in TPU pellets, used for injection molded automotive seals and gaskets. It provides excellent long-term heat aging resistance for under-hood applications. This product falls under tariff item 3812.39.00 as an anti-oxidizing preparation for rubber or plastics.
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Antilux 654 Rubber Light Stabilizer
> A nickel-based aromatic complex providing UV protection in colored rubber mats and flooring. Though primarily a light stabilizer, its aromatic structure qualifies it as an anti-oxidizing preparation for rubber under tariff item 3812.39.00.