Hycar Polyisobutylene Adhesive Polymer
Hycar polyisobutylene is a specialty grade for hot-melt adhesives and sealants, meeting HTS 3902.20.5000 criteria as 'Other' polyisobutylene with ≥95% monomer purity in primary pellet form. Used in construction and automotive sealant formulations.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when supplied as adhesive preparation
Prepared adhesives containing polyisobutylene classify under Chapter 35.
If in mastic form for retail
Glazier's putty/mastics with polyisobutylene go to Chapter 32.
If ethylene-propylene copolymer blend
Blends where no single monomer predominates classify by specific copolymer provisions.
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Import Tips & Compliance
• Include melt flow index specifications; ensure no pre-compounding with resins; label clearly as primary polymer for CBP review
Related Products under HTS 3902.20.50.00
Polyisobutylene Rubber Vistanex LM-MS
Vistanex LM-MS is a medium molecular weight polyisobutylene polymer used primarily as a tackifier and viscosity modifier in adhesives, sealants, and rubber compounding. It falls under HTS 3902.20.5000 as 'Other' polyisobutylene in primary forms, meeting the subheading note where the isobutylene monomer units contribute over 95% by weight. This non-crosslinked elastomer is imported in pellet or slab form for industrial processing.
Indopol L-100 Polyisobutylene
Indopol L-100 is a low molecular weight liquid polyisobutylene used as a plasticizer and lubricant additive in industrial oils and greases. Classified under HTS 3902.20.5000 as 'Other' polyisobutylene where isobutylene units predominate by weight per subheading notes. Imported in drums as a viscous, colorless primary polymer form.
Oppanol B15 Polyisobutylene Resin
Oppanol B15 is a high molecular weight polyisobutylene resin serving as an adhesive tackifier and chewing gum base component. It qualifies for HTS 3902.20.5000 as 'Other' polyisobutylene with ≥95% isobutylene monomer content in primary slab or pellet form. This thermoplastic polymer is essential for pressure-sensitive adhesives.
Pebax Polyisobutylene Elastomer Pellets
Specialty polyisobutylene elastomer pellets used in medical tubing and seals, meeting 95%+ isobutylene content for HTS 3902.20.5000 classification as 'Other' polyisobutylene in primary forms. These non-crosslinked pellets are processed into flexible medical-grade components.
Liquid Polyisobutylene Napvis 10
Napvis 10 is a low-viscosity liquid polyisobutylene used in cable filling compounds and corrosion inhibitors, classified under HTS 3902.20.5000 as 'Other' with predominant isobutylene monomer units. Supplied in bulk containers as primary polymer liquid.
Chewing Gum Base Polyisobutylene
Food-grade polyisobutylene specifically formulated for synthetic chewing gum base, classified under HTS 3902.20.5000 as 'Other' polyisobutylene in primary forms with high monomer purity. This elastomer provides the chewable, non-stick properties essential for gum production.