Butyl Rubber Caulking Compound from China
A synthetic rubber-based caulk for roofing and siding applications, providing excellent weatherproofing and low permeability. It is a caulking mastic, not a pure rubber product, due to its compounded nature, and falls under tariff item 3214.10.90.
Duty Rate — China → Canada
6.5%
Import Tips
• Confirm the product is not a separate chemically defined compound, which would be excluded from Chapter 32
• Check if the caulk is in tape form, as that may affect classification
• Maintain documentation of the rubber compound's formulation