New

Ask Wove anything about tariffs.

Try Tariff Assistant

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%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

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