Prevulcanized Butyl Rubber Paste from Japan
Paste form of prevulcanized isobutene-isoprene rubber (IIR) for adhesive applications, explicitly allowed under chapter notes. Classified in 4002.31.00.00 as primary paste form without prohibited vulcanizing agents beyond prevulcanization.
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
• Distinguish prevulcanized latex from fully compounded; provide vulcanization test data
• Label clearly as 'prevulcanized primary form' to match note 5(a) exception