colloidal graphite dispersion
CN โ USAI Analysis
๐ฅ๏ธ Colloidal Graphite Dispersion (Liquid Graphite)
๐ HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Entry Strategy
๐ I. Product Definition & Classification: Do You Really Know "Colloidal Graphite"?
Colloidal Graphite Dispersion is a stable suspension of ultra-fine graphite particles in a liquid carrier (typically water or alcohol). It is widely used in conductive coatings, lubricants, graphite brushes, and advanced battery materials. In international trade, it is often misclassified due to its dual nature: it looks like a chemical mixture but functions as a material with specific industrial properties.
Two Main Categories for Classification:
- Prepared Lubricants (For Brushing): If the dispersion is specifically formulated as a brush lubricant (containing binders, solvents, and graphite), it is classified as a Prepared Lubricant.
- Graphite Products (Pure/Technical): If it is a simple suspension of natural or synthetic graphite in water/alcohol without specific lubricating additives, it may be classified under Graphite Articles or Prepared Binders.
โ ๏ธ Key Distinction Point: - If the primary function is lubrication (reducing friction in electrical brushes/motors) โ 3403.99 - If the primary function is conductivity/coating (no lubricating intent) โ 3819.00 or 3824.99 - Note: Many customs authorities push "graphite dispersions" into 3819 (Prepared lubricants containing petroleum oils) or 3403 (Other lubricants), depending on the carrier oil/base.
๐ฆ II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Is it a Lubricant? |
|---|---|---|---|
3403.99.00.00 |
Other lubricating preparations (including cutting oil preparations) | Graphite brush lubricant, motor brush compound | โ Yes (Primary Function) |
3819.00.00.00 |
Hydraulic brake fluids and other prepared liquids for hydraulic transmissions, not containing petroleum oils | Some conductive graphite coatings (if no oil base) | โ No (Coating/Conductive) |
3824.99.99.00 |
Prepared binders for foundry molds or cores; other chemical products | Graphite-based foundry coatings, refractory binders | โ Yes (Binder/Refractory) |
8545.11.00.00 |
Graphite electrodes, carbon brushes, and other graphite articles | Solid graphite brushes (NOT dispersion) | โ No (Solid State) |
3215.90.00.00 |
Printing ink, writing or drawing ink and other inks and written or drawing ink | Graphite inks for printing conductive patterns | โ Yes (Ink) |
๐ Key Reminder: - The most common and safest classification for industrial colloidal graphite used in motors/generators is
3403.99.00.00(Prepared Lubricant). - If the dispersion contains petroleum oil as a base, some countries may classify it under3819.00.00.00(Hydraulic/Transmission fluids) or2710.19(Mineral oils), but this is rare for pure graphite dispersions. - Avoid classifying as8545(Solid Graphite) because dispersion is a liquid/paste.
๐ฐ III. 2026 Latest Tariff Rate Details (Including Surcharge & Policy Add-ons)
โ Applicable Country: United States (US) โ Origin: China (CN) โ Effective Date: Post-November 2025 (Current Trade War Context)
๐ฏ 1. 3403.99.00.00 โโ Prepared Lubricating Preparations (Most Common)
| Item | Content |
|---|---|
| Base Tariff | 5.6% (ad valorem) |
| USITC Surcharge (Section 301) | +25% (Most 3403 items are on the 301 List) |
| IEEPA Surcharge (China Specific) | +10% (For products from China, effective Nov 2025) |
| Total Tariff Rate | ~40.6% |
| Tax Calculation | CIF Value ร 40.6% |
| De Minimis Exemption | โ Not Eligible (deny_de_minimis) |
| Legal Path | USITC:3403.99.00.00 โ SECTION301:3403 โ IEEPA:9903.01.24 |
๐ Explanation: - "Prepared lubricants" are highly sensitive to trade wars. - The 25% Section 301 surcharge applies because lubricants are considered industrial inputs. - The 10% IEEPA surcharge applies specifically to Chinese-origin goods. - Total: ~40.6%. This is a high-cost item.
๐ฏ 2. 3819.00.00.00 โโ Prepared Liquids (If classified as non-lubricant)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| USITC Surcharge (Section 301) | +7.5% (Some 3819 items are on List 3B with lower rates) |
| IEEPA Surcharge (China Specific) | +10% |
| Total Tariff Rate | ~24% |
| Tax Calculation | CIF Value ร 24% |
| De Minimis Exemption | โ Not Eligible |
| Legal Path | USITC:3819.00.00.00 โ SECTION301:3819 โ IEEPA:9903.01.24 |
๐ Note: - If your product is not a lubricant (e.g., a conductive coating),
3819may offer a lower tariff (24%) compared to3403(40.6%). - Risk: Customs may challenge this if the product is clearly used for lubrication.
๐ ๏ธ IV. Clearance Practical Advice (Practical Pitfall Avoidance Guide)
โ 1. Documentation Checklist (All Required)
| Document | Must Provide | Explanation |
|---|---|---|
| โ Product Specification Sheet | โ๏ธ | Must detail: Graphite content %, Carrier liquid (Water/Alcohol/Oil), Viscosity, pH. |
| โ MSDS (Material Safety Data Sheet) | โ๏ธ | Critical for customs to determine if itโs hazardous. Graphite is usually non-hazardous. |
| โ Declaration of Composition | โ๏ธ | Clearly state: "Colloidal Graphite Dispersion, Water-based, Non-Lubricating" OR "Graphite Brush Lubricant". |
| โ Commercial Invoice | โ๏ธ | Do NOT just write "Graphite". Write: "Colloidal Graphite Dispersion for [Specific Use]". |
| โ Origin Certificate | โ๏ธ | If non-China, to avoid IEEPA surcharge. |
| โ Usage Declaration | โ๏ธ | Explain end-use: e.g., "Used for coating conductive tracks" vs "Used for motor brush lubrication". |
โ 2. Declaration Tips (Key Mnemonics)
๐ฅ โFunction is King, Carrier Matters, Name is Precise!โ
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Used for Motor Brushes | 3403.99.00.00 (Lubricant) |
Misdeclare as 3819 โ Penalty for fraud |
| Used for Conductive Coating | 3819.00.00.00 (Non-lubricant) |
Misdeclare as 3403 โ Overpay tariffs |
| Contains Petroleum Oil | Check 3819 or 2710 |
Ignore base oil content |
| Solid Graphite Powder | 3824.99 or 8545 |
Misdeclare as dispersion โ Wrong HS |
โ 3. Special Cases Handling
| Case | Handling Advice |
|---|---|
| Water-Based Dispersion | Usually safer for 3403 or 3819. Lower risk of being classified as chemical mixture. |
| Alcohol-Based Dispersion | May be flammable. Requires Hazmat declaration. Tariff may still be 3819. |
| Oil-Based Lubricant | Likely 3403 or 2710. High scrutiny on Section 301. |
| OEM Custom Mix | Provide formula. If proprietary, describe generic function: "Conductive Graphite Paste". |
๐ V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification Requirements | Notes |
|---|---|---|---|---|
| ๐บ๐ธ US | 3403.99.00.00 |
~40.6% (CN) | EPA/RCRA (if hazardous) | High tariff due to 301+IEEPA |
| ๐จ๐ณ China | 3403.99.00.00 |
6.5% | No special certification | Low tariff, free trade zone benefits |
| ๐ช๐บ EU | 3403.99.00.00 |
6.5% | REACH (Chemical Registration) | REACH compliance is critical for EU entry |
| ๐ฎ๐ณ India | 3403.99.00.00 |
~10-15% | BIS Standards | Varies by graphite source |
| ๐ฆ๐ช UAE | 3403.99.00.00 |
5% | ESMA | Low tariff, easy clearance |
๐ Conclusion: - US is the most expensive market due toๅ ๅ tariffs. - EU requires REACH registration for the carrier liquid and graphite particles. - China is the production hub; consider sourcing locally to avoid import tariffs.
๐ VI. Common Mistakes & Pitfalls (Blood & Tears Lessons)
โ Mistake 1: Declaring as "Graphite Powder" (8545) when it's a liquid. ๐ Consequence: Customs will reject entry. Liquids are not solid articles. Delay/Return.
โ Mistake 2: Ignoring the "Carrier Liquid" in the description.
๐ Consequence: If it contains petroleum oil, it might be classified under 2710 (Mineral Oils), which has different 301 rules. Misclassification Penalty.
โ Mistake 3: Not providing MSDS. ๐ Consequence: Customs cannot determine hazard class. Holds for inspection.
โ Mistake 4: Using "Ink" for a lubricant.
๐ Consequence: 3215 (Ink) has different rates. If used for lubrication, itโs fraud. Audit Risk.
โ Correct Practice:
"Colloidal Graphite Dispersion, Water-Based, 40% Graphite Content, Used for Electrical Brush Lubrication, Non-Hazardous, MSDS Provided"
๐ฏ VII. Conclusion: Professional Declaration, Save Costs, Ensure Clearance!
๐ฏ Remember the Mnemonic:
๐น "Function First, Carrier Second, Name Precise, Tariff Clear!" ๐น "Lubricant = 3403 (40.6% US), Coating = 3819 (24% US), Solid = 8545 (Different Rule)!" ๐น "MSDS is Mandatory, Composition is King, Misclassification is Costly!"
๐ Pro Tip:
If your product is used solely for conductivity (e.g., in battery electrodes), argue for
3819.00.00.00to save ~16.6% in tariffs compared to3403. For US imports from China, consider supply chain diversification (Vietnam, Thailand) to avoid IEEPA + Section 301 surcharges.
๐ฃ Immediate Action:
๐ Contact a licensed customs broker + Provide MSDS + Get Pre-Ruling for your specific formula. ๐ Ensure your Colloidal Graphite Dispersion clears smoothly, efficiently, and profitably!
โจ Professional Clearance Starts with Precise Classification! ๐ผ Every cent of cost deserves accurate calculation!
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) โ Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) โ More specific grouping within the chapter
- Subheading (6 digits) โ Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) โ Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate โ The standard duty rate applied to WTO members
- General rate โ Applied to countries without trade agreements
- Trade remedy duties โ Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.