Isoprene Rubber (IR) Crumb
Isoprene rubber crumb is a bulk primary form of synthetic IR, typically used for recycling into new compounds. Chapter note 3 explicitly includes 'crumbs' as a primary form, and the product is uncompounded, so it falls under tariff item 4002.60.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the crumb is waste or scrap from rubber manufacturing
Waste, parings, and scrap of rubber are classified under heading 40.04.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the crumb is free from contaminants like metal or fabric that could alter classification
• Declare the crumb as a primary bulk form on customs paperwork
• Provide a lab analysis showing it is uncompounded synthetic IR for CBSA review
Related Products under Tariff item 4002.60.00
Cis-1,4 Polyisoprene Rubber Bale
Cis-1,4 polyisoprene rubber in bale form is a synthetic isoprene rubber (IR) that closely mimics natural rubber, making it ideal for tire treads and conveyor belts. As a bale of irregular shape, it qualifies as a primary form under chapter note 3, and it is uncompounded, retaining its raw rubber character.
High Ammonia IR Latex
High ammonia IR latex is a stabilized synthetic isoprene rubber in liquid dispersion form, used for carpet backing and textile applications. As a latex, it is a primary form under chapter note 3, and the ammonia acts as a permitted stabilizer under chapter note 5(B)(iii), preserving its raw rubber character.
IR Synthetic Rubber Powder
IR synthetic rubber powder is a fine powder form of isoprene rubber used in compounding for seals and gaskets. Powder is explicitly listed as a primary form under chapter note 3, and the product is uncompounded, making it classifiable under tariff item 4002.60.00.
Isoprene Rubber (IR) Granules
Isoprene rubber granules are a granular primary form of synthetic IR, supplied for easy handling in tire and rubber goods manufacturing. Granules are listed as a primary form in chapter note 3, and the product retains its raw material character without additives.
Low Molecular Weight IR Solution
Low molecular weight IR solution is a depolymerized isoprene rubber dissolved in an organic solvent, used for specialty coatings. Chapter note 4(c) includes depolymerized natural rubber in the definition of synthetic rubber, and the solution is a primary liquid form under chapter note 3.
Prevulcanized Isoprene Rubber Latex
Prevulcanized isoprene rubber latex is a special liquid form of synthetic IR where vulcanization occurs during processing, used for foam rubber and medical gloves. Chapter note 5(A) allows prevulcanized latex as a primary form, and it is classifiable under tariff item 4002.60.00.