Elastomeric Polyisobutylene Rubber from United States
Elastomeric polyisobutylene rubber is a synthetic polymer where isobutylene monomer units constitute 95% or more by weight, imported in primary form. It is used in various applications requiring elasticity and gas impermeability, qualifying under tariff item 3902.20.00.
Duty Rate — United States → Canada
0%
Import Tips
• Verify the product is not vulcanized or cross-linked, as that would fall under Chapter 40
• Maintain records of the polymer's monomer composition
• Ensure the product is in primary forms such as pellets, granules, or powders