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3214.10.00.10/Butyl Rubber Caulking Compound/Japan

Butyl Rubber Caulking Compound from Japan

Synthetic rubber-based caulk for roofing and siding applications, providing excellent weatherproofing and low permeability. Falls under HTS 3214.10.00.10 as a caulking mastic, not a pure rubber product due to its compounded mastic form. Used in industrial and residential sealing.

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%
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Import Tips

• Ensure labeling distinguishes from pure rubber sheets (Chapter 40) by noting mastic additives

• Include flash point data for hazardous material declarations if flammable solvents present

Butyl Rubber Caulking Compound from Japan — Import Duty Rate | HTS 3214.10.00.10