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High-Performance MS Polymer Caulk from Japan

Modified silane (MS) polymer hybrid caulking for demanding joints, combining silicone and polyurethane benefits. As a caulking mastic, it fits HTS 3214.10.00.10 for construction gap sealing. UV-stable and isocyanate-free.

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

Provide polymer composition breakdown to confirm non-excluded Chapter 32 status

Hazardous material shipping papers required for moisture-curing types

Avoid classifying as glue if primary use is caulking per end-use

High-Performance MS Polymer Caulk from Japan — Import Duty Rate | HTS 3214.10.00.10