Vistanex Polyisobutylene HMW
Vistanex HMW (high molecular weight) polyisobutylene used in asphalt modification and roofing sealants, classified HTS 3902.20.5000 as 'Other' with >95% isobutylene content in slab form. Enhances elasticity and weather resistance in bituminous products.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in bituminous mixtures
Asphalt modified with >5% polymer may classify as bituminous mixtures.
If in finished roofing products
Polymer-modified roofing tiles/slates fall under Chapter 68 articles.
If propylene copolymer blend
Asphalt modifiers with propylene copolymers use 3902.30.
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Import Tips & Compliance
• Provide ash content and softening point analysis; declare slab dimensions to confirm primary form; test for oxidative stability affecting end use claims
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.
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.