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Cobalt Naphthenate Catalyst for Polyester Resins from Germany

Cobalt naphthenate serves as an accelerator in unsaturated polyester resin curing for fiberglass composites. As a water-insoluble naphthenic acid salt, it fits HTS 3824.99.7550 for other such preparations. Used in boat building, automotive parts, and corrosion-resistant tanks.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%

Import Tips

12% max cobalt content typical—verify via ICP analysis for duty-free claims if applicable

Hazardous material declaration for flammability; pair with MEKP hardener docs

Avoid 2852 classification—it's organic salt, not inorganic compound