High Molecular Weight Butyl Rubber Crumbs from Japan
> Crumbs of high molecular weight isobutene-isoprene rubber for blending in conveyor belts. Crumbs are a primary form under Chapter Note 3(b), and the rubber is uncompounded, complying with the vulcanization and recovery tests in Chapter Note 4(a).
Duty Rate — Japan → Canada
0%
Import Tips
• > Confirm the crumbs are not derived from recycled or waste rubber, which would fall under heading 40.04
• Provide molecular weight data to support the high MW claim if needed
• Ensure the crumbs are free of fabric or other contaminants