Unvulcanized Natural Rubber Tubing
Flexible tubing made from unvulcanized natural rubber in continuous lengths, used in manufacturing processes before vulcanization. It falls under HTS 4006.90.10.00 as 'tubes' of unvulcanized natural rubber, distinct from vulcanized forms or primary shapes in earlier headings. This form allows easy shaping during final production.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in latex or dispersion form
Latex and primary liquid forms of natural rubber are classified in heading 4001, not as tubes or profiles.
If supplied as uncut rectangular sheets or plates
Plates and sheets of unvulcanized rubber, even natural, fall under 4006.10 if simply cut to rectangular shapes, per chapter note 7.
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Import Tips & Compliance
• Verify the rubber is truly unvulcanized through lab testing, as vulcanized forms shift to heading 4008; provide certificates of analysis confirming natural rubber content without vulcanizing agents
• Ensure documentation distinguishes from latex (4001) or sheets (4006.10)
Related Products under HTS 4006.90.10.00
Unvulcanized Natural Rubber Profile Strips
Profile-shaped strips of unvulcanized natural rubber, such as U-channels or T-sections, for molding into seals. Classified in HTS 4006.90.10.00 as 'profile shapes' of unvulcanized natural rubber, excluding vulcanized or primary bulk forms.
Unvulcanized Natural Rubber Rods
Solid cylindrical rods of unvulcanized natural rubber, cut to length for further processing into bushings. HTS 4006.90.10.00 covers 'rods' of unvulcanized natural rubber, separate from primary lumps or vulcanized rods.
Unvulcanized Natural Rubber Discs
Circular discs of unvulcanized natural rubber used as preforms for gaskets. This 'article' form is specifically named in HTS 4006.90.10.00 for unvulcanized natural rubber, not qualifying as plates/sheets.
Unvulcanized Natural Rubber O-Ring Blanks
Ring-shaped blanks of unvulcanized natural rubber for molding into seals. Falls under HTS 4006.90.10.00 as 'rings' (articles) of unvulcanized natural rubber.
Unvulcanized Natural Rubber U-Channel Profiles
U-shaped profile extrusions of unvulcanized natural rubber for automotive weatherstripping preforms. HTS 4006.90.10.00 for 'profile shapes' of unvulcanized natural rubber.
Unvulcanized Natural Rubber Square Rods
Square cross-section rods of unvulcanized natural rubber for custom molding applications. Covered as 'rods' in HTS 4006.90.10.00 for unvulcanized natural rubber forms.