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3902.20.50.00/Liquid Polyisobutylene Napvis 10/Mexico

Liquid Polyisobutylene Napvis 10 from Mexico

Napvis 10 is a low-viscosity liquid polyisobutylene used in cable filling compounds and corrosion inhibitors, classified under HTS 3902.20.5000 as 'Other' with predominant isobutylene monomer units. Supplied in bulk containers as primary polymer liquid.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Test for water content affecting classification; provide flash point data for DOT compliance; declare as primary polymer not compound to maintain rate

Liquid Polyisobutylene Napvis 10 from Mexico — Import Duty Rate | HTS 3902.20.50.00