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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If <95% chlorinated polyethylene
Polyethylene polymers classify in 3901; chlorination level determines subheading.
If supplied as floor-covering granules
Heading 3918 specific for polymer granules in primary forms for floors.
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Import Tips & Compliance
• Certify chlorosulfonation doesn't exceed 'chemically modified' per note (a)(3) for 'Other'
• Avoid bulk packaging confusion with 3923 retail packs
• Test for exact chlorine/sulfur content to prevent 3901.10 misclass
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.
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.
Cloroprene Chlorinated Elastomer
Specialty chlorinated neoprene elastomer powder for coatings. Primary form, HTS 3911.90.70.00.