HFC-152a Foam Expansion Agent from Canada
HFC-152a drives the expansion of polystyrene foams used in packaging and construction insulation. Under HTS 2903.43.10.00, it is the pure 1,1-difluoroethane compound per tariff specificity. It offers zero ozone depletion potential.
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
• Verify Montreal Protocol phase-out status; stabilizer additives declared
• Pitfall: Reactive impurities can cause foam defects post-import