HS Code for Halogenated Butyl Rubber 2025 Guide
TL;DR: The **HS code for halogenated butyl rubber** is 4002.31 in 2025. Discover key properties, 2025 regional updates like US HTS mandates and GCC 12-digit shifts, classification steps, applications, and trade tips for seamless tariff compliance and global shipping.
What is Halogenated Butyl Rubber in HS Codes Context?
Halogenated butyl rubber** is a modified synthetic rubber enhanced with halogens like chlorine (CIIR) or bromine (BIIR), classified under **HS code 4002.31** in Chapter 40 of the 2025 HS nomenclature.
This material starts from isobutene-isoprene rubber (IIR) and gains superior adhesion and ozone resistance.
- Primary forms: Raw polymer
- Sheets, plates, strips: Common trade shapes
- Key benefit: Essential for **tariff compliance 2025** in international trade
No WCO revisions until 2027, but national 2025 changes impact imports.
Primary HS Code: 4002.31 for Halogenated Butyl Rubber
The precise **HS code for halogenated butyl rubber** remains **4002.31** for 2025 shipments worldwide.
| HS Level | Code | Description |
|---|
| Chapter | 40 | Rubber and articles thereof |
| Heading | 4002 | Synthetic rubber and factice in primary forms |
| Subheading | 4002.31 | Isobutene-isoprene (butyl) rubber (IIR), halogenated |
Valid per WCO HS 2022 (stable through 2027). Use for **HS codes guide 2025** accuracy.
2025 HS Code Changes Affecting Halogenated Butyl Rubber Trade
**HS code changes 2025** introduce regional shifts critical for **halogenated butyl rubber** exporters and importers.
Combined Nomenclature 2025 | Region | 2025 Update | Impact on 4002.31 |
|---|
| USA | HTS mandatory Sep 1; de minimis ends Aug 29 | 10-digit codes required for all entries |
| GCC Countries | 12-digit HS from Jan 1 | Extra digits for precise tariffs |
| EU | Refined chemical rubber subheadings |
| China | National tariff adjustments | Updated import schedules for synthetics |
| Australia | HS alignment with WCO | Stable but verify local extensions |
Monitor for **tariff schedules 2025** to avoid delays.
Key Properties of Halogenated Butyl Rubber
**Halogenated butyl rubber properties** make it ideal for high-performance applications under **HS 4002.31**.
- Superior air impermeability: Tire inner liners
- High ozone and weather resistance
- Excellent chemical and heat resistance
- Low gas permeability
- Enhanced curing and adhesion
These traits drive its use in demanding environments.
Common Applications Using HS Code 4002.31
Industries rely on **halogenated butyl rubber** for specialized needs, classified as **HS code 4002.31**.
- Tire manufacturing: Inner liners for longevity
- Pharmaceuticals: Vial stoppers and seals
- Construction: Sealants and roofing membranes
- Automotive: Vibration dampers
- Protective gear: Chemical-resistant clothing
Growing demand in emerging markets boosts trade volumes.
How to Classify Halogenated Butyl Rubber Under 2025 HS Codes
Master **HS code classification 2025** with this step-by-step guide for **halogenated butyl rubber**.
- Identify material: Confirm CIIR or BIIR type
- Locate Chapter 40: Rubber products
- Select 4002: Synthetic rubber primary forms
- Apply 4002.31: Halogenated isobutene-isoprene
- Add regional digits: e.g., US 10-digit HTS
- Verify with official databases like WCO or USITC
Avoid misclassification penalties through precise steps.
Global Trade Statistics for Halogenated Butyl Rubber 2025
**HS 4002.31 trade** is expanding with automotive and pharma growth in 2025.
- Export leaders: USA, Germany, Japan
- Import hubs: China, India, Brazil
- 2025 projection: 8-10% volume increase
- Value: Over $500M annually (UN Comtrade)
- Trend: E-commerce drives smaller shipments
Source: Latest UN trade data, aligned with **HS codes guide 2025**.
Shipping Tips for Halogenated Butyl Rubber with HS 4002.31
Optimize shipments of **halogenated butyl rubber** amid **2025 tariff compliance** rules.
- Maintain 10-30°C temperature range
- Use moisture-barrier packaging
- Declare accurate HS 4002.31 on manifests
- Prepare for customs scrutiny in GCC/USA
- Choose sea/air freight based on urgency
Proper handling ensures quality retention.
FAQ: HS Code for Halogenated Butyl Rubber 2025
Answers to common **People Also Ask** questions on **HS code for halogenated butyl rubber**.
What is the exact HS code for halogenated butyl rubber in 2025?
It's 4002.31 for halo-isobutene-isoprene rubber (CIIR/BIIR) in primary forms.
Are there 2025 changes to HS 4002.31?
No core WCO changes until 2027, but regions like USA and GCC add digits for compliance.
What properties define halogenated butyl rubber under HS codes?
Air retention, ozone/chemical resistance, adhesion, and flexibility qualify it for 4002.31.
How do I classify sheets of halogenated butyl rubber?
Use 4002.31 if in primary forms, plates, sheets, or strips; check regional extensions.
What are 2025 US rules for HS code 4002.31 imports?
Full 10-digit HTS required from Sep 1, with de minimis threshold ending Aug 29.
Which industries import under HS 4002.31 most?
Automotive tires, pharmaceuticals, and construction lead global imports.
Is halogenated butyl rubber temperature-sensitive for shipping?
Yes, store and ship between 10-30°C to preserve properties.
Where to verify 2025 HS codes for rubber products?
Check WCO at wcoomd.org, USITC for HTS, or national customs portals.
What if I misclassify HS code 4002.31?
Risks include fines, delays, seizures, and higher duties—always validate.
Resources & Next Steps for HS Code Compliance
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