HBFC Foam Blowing Agent Concentrate from Germany
Concentrated HBFC-243db1 (CF3CHBrCF2CH2F) formulation for rigid polyurethane foam expansion in aerospace applications. Classified in 3827.12.00.00 as HBFC mixture for chemical processing. Exempt from most bans due to critical defense specifications.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Include DoD or NASA end-user letters justifying critical military/aerospace specifications for HBFC use
• Certify foam density and thermal requirements cannot be met with HFC/HFO alternatives
• Document as 'processing agent' not final foam product to avoid 3921 classification