Cork-Rubber Thermal Insulation Slab from Canada
Dense slab of vulcanized ground cork and rubber for thermal barriers in HVAC systems and building envelopes. Classified in HTS 4504.10.10.00 for its composition solely of pulverized cork and rubber in slab configuration.
Duty Rate — Canada → United States
10%
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
• Obtain R-value certifications for customs valuation and end-use verification
• Avoid bulk packaging over 1m² to prevent 'tile' misclassification
• Declare exact cork/rubber ratio to preempt binder content disputes