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3214.10.00/Butyl Rubber Glazing Sealant/Japan

Butyl Rubber Glazing Sealant from Japan

Butyl rubber glazing sealant is a non-hardening mastic tape or compound for insulating glass units. Its dead-soft properties seal edges permanently 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%
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Import Tips

• Provide rubber content analysis to confirm mastic vs polymer classification

• Include compatibility certificates for PVC and aluminum spacers

• Declare tape vs compound form explicitly in entry documents

Butyl Rubber Glazing Sealant from Japan — Import Duty Rate | HTS 3214.10.00