Liquid Polybutene L-14E from Japan
Liquid polybutene L-14E (viscosity 140 cSt) is a low molecular weight olefin polymer imported under HTS 3902.90.00 for use in lubricants and caulks. Isobutylene monomer >95% by weight in primary liquid form.
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
• Classify as UN1268 liquid per DOT; provide flash point data (>200°C)
• Avoid drum linings reactive with olefins
• Temperature-control shipments above 15°C