Butyl Rubber Unvulcanized Powder
Powdered isobutylene-isoprene (butyl) rubber compound unvulcanized, with antioxidants for inner tube production. Under HTS 4005.99.00.00 as other compounded primary powder form, includes permitted stabilizers per note 5(b).
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If natural-like butyl with no fillers
Heading 4002 for simple synthetic rubbers.
If considered chemical preparation
Mixtures with high non-rubber content may go to Chapter 38.
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Import Tips & Compliance
• Test for powder flowability to prove primary form
• Document stabilizer levels < permitted thresholds
• Pitfall: powder clumping seen as lumps under 4001
Related Products under HTS 4005.99.00.00
NBR Unvulcanized Rubber Compound Sheets
Sheets of nitrile butadiene rubber (NBR) compound in unvulcanized primary form, mixed with fillers and plasticizers for oil-resistant applications. Classified under HTS 4005.99.00.00 as compounded unvulcanized rubber in sheet form, not meeting primary form restrictions of earlier headings due to added compounding agents beyond permitted substances. Excludes vulcanized or textile products per Chapter 40 notes.
EPDM Unvulcanized Rubber Granules
Granular form of ethylene propylene diene monomer (EPDM) rubber compounded unvulcanized, with stabilizers and processing aids for weather-resistant products. Falls under HTS 4005.99.00.00 as 'other' compounded rubber in primary granular form, distinguished from simple synthetic rubber by added extenders. Complies with Chapter 40 exclusion of vulcanized goods.
SBR Unvulcanized Rubber Bale Compound
Bales of styrene-butadiene rubber (SBR) unvulcanized compound containing carbon black reinforcement and oils for tire manufacturing. HTS 4005.99.00.00 applies to this 'other' compounded primary form rubber, as it includes extenders excluded from headings 4001-4002. Not scrap or vulcanized per chapter notes.
Silicone Rubber Unvulcanized Paste
Paste form of liquid silicone rubber (LSR) compounded unvulcanized with catalysts and fillers for molding applications. Classified in HTS 4005.99.00.00 as other primary form compounded rubber, containing plasticizers disallowed in earlier headings. Excludes electrical appliances of Section XVI.
Neoprene Unvulcanized Rubber Crumb
Polychloroprene (Neoprene) rubber in unvulcanized crumb form, compounded for chemical resistance. HTS 4005.99.00.00 covers this as other primary form, with added reinforcing agents. Bulk form per note 3, not scrap.
Hypalon Rubber Compound Plates
Plates of chlorosulfonated polyethylene (Hypalon) unvulcanized rubber compound for corrosion-resistant linings. HTS 4005.99.00.00 for other sheet/plate forms with pigments and fillers. Rectangular uncut per note 8.