Polyisobutylene Rubber Vistanex LM-MS from Mexico
Vistanex LM-MS is a medium molecular weight polyisobutylene polymer used as a tackifier and viscosity modifier in adhesives, sealants, and rubber compounding. It falls under tariff item 3902.20.00 as polyisobutylene in primary forms, with isobutylene as the predominant monomer.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the product is not pre-formulated with other additives
• Provide the molecular weight and monomer composition data
• Verify the product is in primary form, such as pellets or granules