Cyclized Rubber (Alkylated Chlorosulfonated Rubber) from Japan
Cyclized rubber is produced by treating natural rubber with acids to create cyclic structures, resulting in a harder derivative used in paints and varnishes. It is supplied in primary flake or powder form. As a chemically modified natural polymer, it falls under this tariff item for natural polymers not elsewhere specified.
Duty Rate — Japan → Canada
PGA flags (1)Show detailsHide detailsCFIAAll ProgramsMay be required
- CFIA
All Programs · May be required · on some HTS numbers under this code
May require CFIA All Programs depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Within Range 3913900010–3913900090. Logic: MATCH IF (Valid HS Code).
CBSA Single Window matching criteria, unknown
Import Tips
• Confirm the cyclized rubber is chemically modified natural rubber, not a synthetic polymer, to justify classification under this item
• Provide technical data sheets showing the modification process
• Check if the product is excluded by Chapter 40 notes on synthetic rubber