3827.12.00.00/HBFC Foam Blowing Agent Concentrate/Japan

HBFC Foam Blowing Agent Concentrate from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Calculate with your customs value Verify classification with AI

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