Butyl Rubber Resin Cement from Mexico
A mastic used in roofing and siding applications for flexible sealing against weather. It is a resin cement mastic, excluded from bituminous types, providing durable, non-hardening seals, under tariff item 3214.10.90.
Duty Rate — Mexico → Canada
6.5%
Import Tips
• Ensure the product is not a separate chemically defined compound
• Verify it is not bituminous, as that would exclude it from Chapter 32
• Keep composition records to support the resin cement classification