Butyl Rubber Vistanex L-100 from Japan
Vistanex L-100 is a high molecular weight elastomeric polyisobutylene with over 95% isobutylene content, imported in primary pellet form under HTS 3902.20.10.00. Known for tackiness, it serves as a pressure-sensitive adhesive base in tapes and sealants. Its elastomeric nature distinguishes it from rigid polyolefins.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit manufacturer's spec sheets confirming elastomeric grade and 95%+ monomer purity
• Watch for reclassification if blended polymers predominate other monomers
• Use proper UN packaging for sticky polymers to prevent shipping issues