New

Ask Wove anything about tariffs.

Try Tariff Assistant

Butyl Rubber Glaziers' Putty from Japan

A non-hardening putty formulated with butyl rubber for bedding glass in window frames. Classified under HTS 3214.90.10.00 as glaziers' putty based on rubber, it provides long-term sealing against air and moisture. Ideal for traditional glazing applications in construction.

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

• Label products clearly as 'glaziers' putty' to distinguish from general caulks during customs review

• Provide manufacturer specs confirming rubber base to avoid reclassification to bituminous mastics (excluded by Chapter notes)

• Check state regulations for VOC limits; non-compliant imports may face detention