Oakum Caulking Compound from Japan
Oakum caulking compound combines tarred hemp fibers with mastic for pipe and ship joint sealing. Traditional marine/industrial use under HTS 3214.10.00.
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%
Import Tips
• Declare tar content to avoid Chapter 27 bituminous classification
• Provide fiber treatment process documentation
• Specify marine vs plumbing applications