Butyl Rubber for Pharmaceutical Stoppers from United States
> Pure isobutene-isoprene (butyl) rubber (IIR) in bale form, optimized for pharmaceutical vial stoppers. It is in primary bulk form (bales) under Chapter Note 3(b) and is not compounded, retaining the essential character of raw synthetic rubber, making it classifiable under tariff item 4002.31.00.
Duty Rate — United States → Canada
0%
Import Tips
• > Ensure the bales are free of pigments or fillers, except for identification purposes as per Chapter Note 5(A)(ii)
• Provide documentation that the rubber is uncompounded and meets pharmaceutical-grade specifications
• Be aware that if the rubber is cut to shape for stoppers, it may fall under a different heading