Chlorinated EPDM Rubber (Cl-EPDM)
Chlorinated ethylene-propylene-diene terpolymer rubber, with chlorination ensuring >95% modified monomer dominance. Applied in weatherproof roofing membranes and wire insulation. HTS 3911.90.70.00 covers this as other chlorinated synthetic rubber.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If unchlorinated EPDM terpolymer
Base ethylene-propylene polymers are specifically in 3902, shifting with chlorination.
If vulcanized or rubber-compounded
Processed synthetic rubber moves to Chapter 40 headings.
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Import Tips & Compliance
• Use GPC/FTIR analysis docs to prove predominant chlorinated unit per note (a)(4)
• Declare free of vulcanizing agents to stay in primary forms
Related Products under HTS 3911.90.70.00
Chlorobutyl Rubber (CIIR)
Chlorinated isobutylene-isoprene rubber (CIIR) in primary pellet or bale form, where chlorinated monomer units predominate >95% by weight. Widely used in tire inner liners and pharmaceutical stoppers for air impermeability. Classified in 3911.90.70.00 as chlorinated synthetic rubber.
Hypalon Chlorinated Rubber (CSM-20)
Chlorosulfonated polyethylene (Hypalon CSM-20), a chlorinated synthetic rubber with >95% polyethylene-derived chlorinated units. Excels in chemical-resistant hoses and cables. Primary form classification under 3911.90.70.00.
Chlorinated Styrene-Butadiene Rubber (Cl-SBR)
Chlorinated copolymer of styrene-butadiene rubber, meeting 95% chlorinated unit threshold. Used in tire treads and conveyor belts for enhanced adhesion. 3911.90.70.00 for this primary chlorinated synthetic rubber.
Baymod CN Chlorinated Rubber
Commercial chlorinated synthetic rubber resin (Baymod CN series) from chlorination of natural/synthetic base, >95% purity. For marine coatings and adhesives. HTS 3911.90.70.00 applies.
Chlorinated Polyisoprene Rubber (Cl-IR)
Chlorinated synthetic polyisoprene rubber in latex or solid form, predominant chlorinated units. Used in medical gloves and seals. Primary form under 3911.90.70.00.
Permalyn Chlorinated Resin
Chlorinated terpene-phenolic synthetic rubber resin for adhesives. 95%+ chlorinated content. 3911.90.70.00.