Cold Polymerized SBR Granules from United States
Cold polymerized SBR granules with higher molecular weight, supplied in bulk granular form for tire manufacturing. These granules are a primary form of synthetic rubber, uncompounded and meeting the vulcanization and elasticity tests of Chapter 40 Note 4.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the granules are not mixed with plasticizers, extenders, or reinforcing agents beyond Chapter 40 Note 5 allowances
• Provide a certificate of analysis showing the rubber's elongation and recovery test results
• Classify as primary form granules and keep records of the polymerization process (cold vs. hot) for CBSA verification