Royalty MB Antioxidant Masterbatch

Royalty MB is a 50% polymer-bound mixed aromatic antioxidant masterbatch for injection-molded rubber gaskets containing hindered phenols and amines. HTS 3812.39.60.00 applies due to aromatic stabilizer composition.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
šŸ‡ØšŸ‡³China6.5%+35.0%41.5%
šŸ‡²šŸ‡½Mexico6.5%+10.0%16.5%
šŸ‡ØšŸ‡¦Canada6.5%+10.0%16.5%
šŸ‡©šŸ‡ŖGermany6.5%+10.0%16.5%
šŸ‡ÆšŸ‡µJapan6.5%+10.0%16.5%

Alternative Classifications

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

3907.99Lower: 16.5% vs 41.5%

If high synthetic rubber polymer content

Polymer masterbatches dominated by rubber content shift to Chapter 39

3816Lower: 13% vs 41.5%

If refractory materials stabilizer preparations

Similar chemistry used in high-temperature ceramics has different classification

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

• Specify masterbatch let-down ratio and processing temperature range

• Include migration test results for food-grade gasket applications

• Prevent reclassification by documenting rubber-specific dispersion

Related Products under HTS 3812.39.60.00

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Irganox 1010 is a high molecular weight hindered phenolic primary antioxidant used in rubber compounding to prevent oxidative degradation during processing and long-term use. It falls under HTS 3812.39.60.00 because it contains an aromatic antioxidant stabilizer specifically designed for rubber products.

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