Alcohol based Rust Prevention Mixture
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3814005090 | 41.0% | CN | US | Official Doc |
| 3814001000 | 41.5% | CN | US | Official Doc |
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AI Analysis
π« Alcohol-Based Rust Prevention Mixture (The "Hidden" Solvent Trap)
π HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
π Part 1: Product Definition & Classification: Do You Really Understand "Rust Prevention Mixtures"?
An Alcohol-Based Rust Prevention Mixture is a chemical formulation designed to prevent oxidation (rust) on metal surfaces, using alcohol (typically ethanol, isopropanol, or methanol) as the primary carrier or solvent. In international trade, these products are often misclassified because they are marketed as "protectants" or "coatings," but their chemical composition and function dictate a specific HS Code.
Key Distinction:
- Pure Rust Inhibitors (Solid/Heavy Oil): If the product is primarily wax, heavy oil, or solid corrosion inhibitor with negligible solvent content, it may fall under Chapter 34 (Polishes/Cosmetics) or Chapter 38 (Miscellaneous Chemical Products).
- Alcohol-Based Mixtures: Since alcohol is the main component/carrier, these are classified as Organic Solvents/Thinning Agents under Chapter 38. The "rust prevention" aspect is secondary to the solvent nature.
β οΈ Critical Classification Point:
- If the mixture is >5% but β€25% aromatic/modified aromatic substances β HS Code 3814.00.10.00
- If the mixture is <5% or >25% aromatic substances, or is "not elsewhere specified" β HS Code 3814.00.50.90
π¦ Part 2: HS Code Classification Details (2026 Latest Tariff Authority)
| HS Code | Product Description | Applicable Scenario | Aromatic Content? |
|---|---|---|---|
3814.00.50.90 |
Organic composite solvents and thinners; prepared paint or varnish removers: Other, Other | Alcohol-based rust inhibitors with <5% or >25% aromatic substances; general-purpose solvent-based protectants | β Low/High (Non-specific) |
3814.00.10.00 |
Organic composite solvents and thinners; prepared paint or varnish removers: Containing 5% to 25% aromatic/modified aromatic substances | Alcohol-based rust inhibitors with 5%-25% aromatic content (e.g., toluene, xylene blends used as co-solvents) | β Yes (Specific Range) |
π Key Warning:
- "Alcohol-Based" does NOT mean "Chemically Pure Alcohol": Pure alcohol (e.g., 99% ethanol) might fall under 2207/2208. However, mixture products with additives for rust prevention are solvents/thinners.
- Aromatic Content is Key: If the formula includes benzene, toluene, or xylene derivatives, check the percentage. Even small amounts can trigger the 3814.00.10.00 classification if within 5-25%.
π° Part 3: 2026 Latest Tariff Rate Details (Including Additional Taxes)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: November 10, 2025 (and subsequent imports)
π― 1. 3814.00.50.90 β Organic Composite Solvents (Other)
| Item | Details |
|---|---|
| Base Tariff | 6.0% |
| Section 301 Additional Tariff | +25.0% |
| Total Tariff | 31.0% |
| Tax Calculation | CIF Value Γ 31.0% |
| De Minimis Exemption | β Not Applicable (High-value chemical products usually excluded) |
| Legal Basis | USITC:3814.00.50.90 β Section 301: Footnote 9903.88.01 |
π Explanation:
- This is the default category for alcohol-based rust preventers that do not meet the specific aromatic content criteria.
- High Tax Alert: 31% is a significant cost burden. Misclassification as a "chemical product" (e.g., 3824) could lead to penalties if audited.
π― 2. 3814.00.10.00 β Solvents with 5%-25% Aromatic Content
| Item | Details |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Additional Tariff | +25.0% |
| Total Tariff | 31.5% |
| Tax Calculation | CIF Value Γ 31.5% |
| De Minimis Exemption | β Not Applicable |
| Legal Basis | USITC:3814.00.10.00 β Section 301: Footnote 9903.88.01 |
π Note:
- This category has a slightly higher base tariff (6.5%) due to the aromatic content, which is often associated with higher industrial chemical use.
- If your product contains toluene or xylene, you must declare the exact percentage. If it falls within 5-25%, this code is mandatory.
π οΈ Part 4: Clearance Practical Advice (Avoiding Pitfalls)
β 1. Required Documentation Checklist
| Document | Mandatory? | Description |
|---|---|---|
| β Safety Data Sheet (SDS) | βοΈ Essential | Must list all ingredients, including % of aromatic substances. Critical for HS Code determination. |
| β Product Specification Sheet | βοΈ | Details alcohol type (ethanol/isopropanol) and rust inhibitor additives. |
| β Certificate of Origin | βοΈ | To prove origin and apply Section 301 tariffs correctly. |
| β Commercial Invoice | βοΈ | Clearly state "Alcohol-Based Rust Prevention Mixture, Solvent-Based" β NOT "Car Wax" or "Metal Polish". |
| β Packing List | βοΈ | Specify net weight vs. gross weight. |
β 2. Declaration Tips (Key Mantras)
π₯ βSolvent First, Protectant Second! Declare Aromatics!β
| Scenario | Correct Declaration | Incorrect Declaration |
|---|---|---|
| Alcohol + Rust Inhibitor | 3814.00.50.90 (Other Solvents) |
3824.99 (Misc Chemicals) β Audit Risk |
| Contains Toluene/Xylene (5-25%) | 3814.00.10.00 |
3814.00.50.90 β Underpayment Penalty |
| Pure Ethanol (No Additives) | 2207.10 (Denatured Alcohol) |
3814.00.50.90 β Wrong Chapter |
β 3. Special Cases
| Case | Handling Advice |
|---|---|
| Aerosol Cans | Still classified under 3814 if the propellant is mixed with the solvent. Do not classify as "Aerosols" (9616). |
| DIY vs. Industrial | Classification is based on composition, not use. Both industrial and DIY get 31% tax. |
| Green/Water-Based Claims | If alcohol-based, it is NOT water-based. Water-based rust preventers may fall under 3824. Misleading claims can lead to fraud penalties. |
π Part 5: Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3814.00.50.90 / 3814.00.10.00 |
31.0% / 31.5% | SDS, EPCRA Compliance | High Section 301 tariff applies. |
| π¨π³ China | 3814.00.50.90 |
6.0% | GB Standards | No additional tariffs. |
| πͺπΊ EU | 3814.00.50 |
0-6.5% | REACH Registration | Aromatic content triggers stricter REACH rules. |
| π¨π¦ Canada | 3814.00.50 |
5-6.5% | CDHA Compliance | Similar to US but lower Section 301 equivalent. |
π Conclusion:
- USA has the highest tariff burden due to Section 301.
- EU and Canada are more favorable, but REACH (EU) compliance for aromatic substances is costly and time-consuming.
π Part 6: Common Errors & Pitfalls (Lessons from Experience)
β Error 1: Declaring as "Car Polish" (HS Code 3405)
π Consequence: If audited, customs will reclassify to 3814 and charge 31%. You owe the difference + penalties.
β Error 2: Ignoring Aromatic Content
π Consequence: If your product contains 10% toluene but you declare it as "Other" (3814.50), you may face underpayment penalties. Conversely, if <5%, declaring 3814.10 leads to overpayment.
β Error 3: Using Vague Descriptions like "Chemical Cleaner"
π Consequence: Customs may request SDS, causing delays. If SDS shows alcohol, they will force 3814.
β Correct Practice:
"Alcohol-Based Rust Preventive Solvent, Contains Isopropyl Alcohol and Corrosion Inhibitor, Aromatic Content: <5%, SDS Attached"
π― Part 7: Conclusion: Precision Classification Saves Money!
π― Remember the Mantra:
πΉ "Alcohol = Solvent! Aromatics Matter! 31% Tax Awaits!"
πΉ "Don't call it Polish! Call it Solvent! Declare Aromatics!"π Pro Tip:
If your product has <5% aromatic content, use 3814.00.50.90.
If 5-25%, use 3814.00.10.00.
Get a Pre-Ruling from CBP if unsure about aromatic composition.
π£ Action Required:
π Consult a Customs Broker + Provide SDS + Request HS Code Pre-Ruling
π Clear Your Rust Preventers Efficiently, Avoid 31% Shocks!
β¨ Professional Clearance Starts with Accurate Classification!
πΌ Your Cost Savings Are Calculated in HS Codes!
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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) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β 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 β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β 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.