NBR Rubber Compound with Carbon Black
A nitrile butadiene rubber (NBR) compound mixed with carbon black for enhanced strength and abrasion resistance, supplied in primary forms like bales or granules. This falls under HTS 4005.10.00.00 as it is unvulcanized rubber compounded specifically with carbon black, retaining its primary form without vulcanizing agents or excessive fillers beyond permitted additives.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If synthetic rubber without carbon black or silica compounding
Pure synthetic rubber mixtures without specified compounding fall under heading 4002 as primary forms.
If heavily filled with non-permitted extenders or plasticizers
Compounds losing essential raw material character due to excessive additives are classified as waste or scrap in 4004.
If processed into plates, sheets, or strips beyond simple rectangular cuts
Surface-worked or shaped plates/sheets move from primary forms in 4005 to specific forms in 4008.
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Import Tips & Compliance
• Verify compounding is limited to carbon black or silica per Chapter 40 notes; excessive additives like plasticizers may shift to heading 4004
• Provide lab analysis certificates confirming unvulcanized state and essential character as raw material to avoid misclassification
• Ensure documentation distinguishes from vulcanized products, common pitfall leading to higher duties under heading 4011
Related Products under HTS 4005.10.00.00
SBR Carbon Black Masterbatch Granules
Styrene-butadiene rubber (SBR) masterbatch granules compounded with high levels of carbon black for tire manufacturing, in bulk granular primary form. Classified under HTS 4005.10.00.00 for unvulcanized compounded rubber with carbon black in primary forms, excluding prohibited vulcanizing agents.
Natural Rubber Carbon Black Bale Compound
Smoked sheet natural rubber bales compounded with carbon black for general molding, in bulk primary bale form. Falls under HTS 4005.10.00.00 for unvulcanized rubber compounded with carbon black, excluding textile or vulcanized exclusions.
IIR Butyl Rubber Silica Bale
Isobutylene-isoprene rubber (IIR, butyl) bales compounded with silica for inner tube production, unvulcanized primary bales. HTS 4005.10.00.00 covers this as compounded with silica in bulk form.
FKM Fluoroelastomer Carbon Black Powder
Fluoroelastomer (FKM, Viton) powder compounded with carbon black for O-ring molding, unvulcanized in powder primary form. Fits HTS 4005.10.00.00 for synthetic rubber compounded with carbon black.
ACM Acrylic Rubber Silica Compound
Acrylic rubber (ACM) compound with silica for automotive belts, in granular primary form unvulcanized. Classified under HTS 4005.10.00.00 for silica-compounded rubber.
CSM Hypalon Carbon Black Sheets
Chlorosulfonated polyethylene (CSM, Hypalon) sheets with carbon black for roofing, unvulcanized rectangular sheets. HTS 4005.10.00.00 for carbon black compounded primary sheets.