Butyl Rubber Glazing Sealant from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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