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Section VII — Plastics and articles thereof; rubber and articles thereof

Chapter 40 — Rubber and articles thereof

Heading 4002 — Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 40.01 with any product of this heading, in primary forms or in plates, sheets or strip.

National subdivision

4002.3 Isobuteneisoprene (butyl) rubber (IIR);haloisobuteneisoprene rubber (CIIR or BIIR):

Common commodities
Butyl rubber sheets for automotive sealsChlorobutyl tubing used in electrical insulationBromobutyl reinforced tire inner linersIsoprene-butyl adhesive tape for roofingIIR sealing strips for refrigeration systemsCIIR gaskets for chemical processing equipmentButyl rubber sheets for flexible packagingBIIR rollers for printing pressesButyl rubber roof membranes for constructionIsoprene-butyl foam seals for appliances

Codes