Other
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. > Isobutene-isoprene (butyl) rubber (IIR); halo-isobutene-isoprene rubber (CIIR or BIIR): > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 4002.39.00
BIIR Irregular Lumps
Irregular lumps of brominated isobutene-isoprene rubber (BIIR) in primary form, produced directly from polymerization. These lumps are uncompounded and retain the essential character of raw synthetic rubber, falling under tariff item 4002.39.00 as 'other' halo-isobutene-isoprene rubber.
BIIR Rubber Bale
Brominated isobutene-isoprene rubber (BIIR) compressed into rectangular bales for storage and transport, used in pharmaceutical stoppers. The bales are in primary form (blocks of regular geometric shape) and uncompounded, qualifying under tariff item 4002.39.00 as 'other' halo-isobutene-isoprene rubber.
Butyl Rubber Latex Dispersion
A liquid dispersion of butyl rubber (IIR) in water, used for dipping and coating applications in manufacturing gloves and balloons. As a latex in primary form, it is uncompounded and falls under tariff item 4002.39.00 as 'other' isobutene-isoprene rubber.
Butyl Rubber Solution Paste
Viscous paste solution of butyl rubber in organic solvent for cement applications, in primary form per Chapter 40 Note 3(a). The paste is uncompounded and classified under tariff item 4002.39.00 as 'other' synthetic rubber dispersion.
Butyl VM-6131 Masterbatch Pellets
Butyl VM-6131 masterbatch pellets with minimal permitted stabilizers for pharmaceutical applications. These pellets are in primary form and uncompounded, falling under tariff item 4002.39.00 as 'other' isobutene-isoprene rubber.
Chlorobutyl Rubber Scrap-Free Crumbs
Processed chlorobutyl rubber (CIIR) crumbs from calendaring, usable as a primary input without waste status. These crumbs are in bulk form and uncompounded, falling under tariff item 4002.39.00 as 'other' halo-isobutene-isoprene rubber.
CIIR Bulk Powder
Bulk chloroisobutene-isoprene rubber (CIIR) powder for dry blending. This powder is in primary form and uncompounded, falling under tariff item 4002.39.00 as 'other' halo-isobutene-isoprene rubber.
CIIR Powder Form
Micronized chlorobutyl rubber powder for compounding in adhesives, classified as a primary form powder under tariff item 4002.39.00. This uncompounded CIIR powder meets Chapter 40 definitions for synthetic rubber granules or powders.
Exxon Butyl 268 Rubber Pellets
Commercial ExxonMobil Butyl 268 grade IIR in pellet form for injection molding compounds. These pellets are in primary form and uncompounded, falling under tariff item 4002.39.00 as 'other' isobutene-isoprene rubber.
Halo-Butyl Dispersion Liquid
Liquid halo-butyl dispersion for coatings, in primary liquid form. This uncompounded dispersion falls under tariff item 4002.39.00 as 'other' halo-isobutene-isoprene rubber.
Halo-Butyl Rubber Granules
Granular form of chloroisobutene-isoprene rubber (CIIR) in bulk primary packaging, suitable for extrusion into tire inner liners. These granules are uncompounded and fall under tariff item 4002.39.00 as 'other' halo-isobutene-isoprene rubber in primary form.
IIR Rubber Lump Blocks
Irregular lump blocks of isobutene-isoprene rubber for further processing into sheets, in primary bulk form. These lumps are uncompounded and fall under tariff item 4002.39.00 as 'other' IIR, compliant with primary forms note excluding worked shapes.
Isobutylene-Isoprene Rubber Paste
High-viscosity isobutene-isoprene rubber (IIR) paste for sealants, in primary form paste. This uncompounded paste falls under tariff item 4002.39.00 as 'other' isobutene-isoprene rubber.
Lanxess Bromobutyl BB2030
Lanxess BB2030 bromobutyl rubber in crumb form for tire curing bladders. This uncompounded BIIR crumb falls under tariff item 4002.39.00 as 'other' halo-isobutene-isoprene rubber in primary form.
Polymerized Butyl Rubber Sheets
Thin, uncut rectangular sheets of plain butyl rubber from coagulation, in primary sheet form. These sheets are simply cut and uncompounded, falling under tariff item 4002.39.00 as 'other' isobutene-isoprene rubber.