Butyl Rubber Resin Cement from Canada
A mastic used in roofing and siding applications for flexible sealing against weather. Falls under HTS 3214.10.00.20 as a resin cement mastic, excluded from bituminous types. Provides durable, non-hardening seals for building envelopes.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Test for solvent content; if over 50% VOC, may require HAZMAT declarations
• Provide manufacturer specs confirming non-asphalt base per chapter exclusions
• Use child-resistant packaging for consumer tubes to meet CPSC rules