环保铸造胶粘剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3214100010 | 38.7% | CN | US | Official Doc |
| 3214100020 | 38.7% | CN | US | Official Doc |
| 3824100000 | 41.0% | CN | US | Official Doc |
| 3506915000 | 37.1% | CN | US | Official Doc |
| 3506990000 | 37.1% | CN | US | Official Doc |
AI Analysis
🏭 Eco-Friendly Casting Adhesives (Environmental Casting Binders)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Entry Strategy
📌 I. Product Definition & Classification: What Exactly is "Eco-Friendly Casting Adhesive"?
"Eco-Friendly Casting Adhesives" are specialized chemical compounds used in the manufacturing of molds and cores for metal casting processes. The term "Eco-Friendly" typically implies low-VOC (Volatile Organic Compounds), water-based, or bio-based formulations, while "Casting Adhesive" specifies the application in foundry operations (binding sand grains).
In international trade, these products are classified based on their primary function: 1. Specific Foundry Use: If explicitly formulated for mold/core binding, they fall under Chapter 38 (Miscellaneous Chemical Products). 2. General Adhesive: If used for general sealing or filling with no specific foundry designation, they may fall under Chapter 32 (Tanning or Dyeing Extracts; Tannings and Derivatives; Dyestuffs...) or Chapter 35 (Albuminoidal Substances; Modified Starches).
⚠️ Key Distinction Point:
- Explicit Foundry Use: The product is marketed and used specifically for "casting molds or cores" → 3824.10.00.00 (Preferred for specific use cases).
- General Sealant/Filler: Used for casting processes generally or as a general-purpose paste/sealant → 3214.10.00.10 / .20 (Sealants/Mastics).
- Polymer-Based General Glue: Based on polymers (3901-3913) without specific foundry labeling → 3506.91.50.00 / .99.00.00.
📦 II. HS Code Classification Details (2026 Latest Tariff Authoritative Comparison)
Based on the provided data, here are the five potential classifications, ranging from specific foundry use to general chemical adhesives:
| HS Code | Product Description | Application Scenario | Risk Level |
|---|---|---|---|
3824.10.00.00 |
Prepared Binders for Foundry Molds or Cores | Explicitly labeled "Casting Binder" for mold/core making. | 🟢 Low (Most Accurate for Specific Use) |
3214.10.00.10 |
Sealants & Putties (Cast) | Inferred as "sealant/filler" from "adhesive"; no material conflict. | 🟡 Medium (Broad Interpretation) |
3214.10.00.20 |
Other Sealants & Putties (Mastics) | General "adhesive" classified as "Mastix" or paste. | 🟡 Medium (Broad Interpretation) |
3506.91.50.00 |
Other Adhesives Based on Polymers (39.01-39.13) | Inferred as polymer-based (resin) adhesive for casting. | 🟡 Medium (Material-Based) |
3506.99.00.00 |
Other Prepared Adhesives (High Performance) | General "prepared glue" for high-performance casting applications. | 🟡 Medium (General Category) |
🔍 Critical Reminder:
- 3824.10.00.00 is the most precise fit if the product is specifically designed for foundry molds/cores.
- 3214 and 3506 codes apply if the "foundry" aspect is not the primary declared function or if the chemical nature leans towards general sealants/polymers.
- Tax Differences: Notice the significant variation in base tariffs (3.7% vs. 6.0% vs. 2.1%), which impacts the final total duty.
💰 III. 2026 Latest Tariff Rate Detailed Explanation (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3824.10.00.00 — Prepared Binders for Foundry Molds or Cores (Best Match)
| Item | Content |
|---|---|
| Base Tariff | 6.0% |
| USITC Surtax | +25% (Section 301 Duties) |
| IEEPA Surtax | +10% (China-specific under International Emergency Economic Powers Act) |
| Total Rate | 41.0% |
| Tax Calculation | CIF Value × 41.0% |
| De Minimis Exemption | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3824.10.00.00 → FOOTNOTE:301.9903.88.01 |
📌 Explanation:
- This is the most specific classification for "Casting Adhesives."
- The Base Tariff is higher (6.0%) compared to general adhesives (2.1%), but the total rate (41.0%) is still the highest among the options due to surcharges.
- Warning: Even though it's the most accurate technical description, the high base rate makes it costly. However, misclassification to avoid this base rate is risky.
🎯 2. 3214.10.00.10 — Sealants & Putties (Cast)
| Item | Content |
|---|---|
| Base Tariff | 3.7% |
| USITC Surtax | +25% |
| IEEPA Surtax | +10% |
| Total Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.24 → USITC:3214.10.00.10 |
📌 Explanation:
- If the product is declared as a "sealant" or "putty" for casting gaps, this code applies.
- Savings: Lower base rate (3.7% vs 6.0%) results in a 3.3% lower total tax (38.7% vs 41.0%).
- Risk: Requires justification that it is not a "prepared binder for molds" but a "sealant."
🎯 3. 3214.10.00.20 — Other Sealants & Putties (Mastics)
| Item | Content |
|---|---|
| Base Tariff | 3.7% |
| USITC Surtax | +25% |
| IEEPA Surtax | +10% |
| Total Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.24 → USITC:3214.10.00.20 |
📌 Explanation:
- Similar to 3214.10.00.10, this covers "Mastics" (pasties/pastes).
- Same Tax Rate (38.7%): Offers a saving compared to 3824.10.00.00.
- Usage: Suitable if the product is a thick paste used for sealing or filling in casting.
🎯 4. 3506.91.50.00 — Other Adhesives Based on Polymers (39.01-39.13)
| Item | Content |
|---|---|
| Base Tariff | 2.1% |
| USITC Surtax | +25% |
| IEEPA Surtax | +10% |
| Total Rate | 37.1% |
| Tax Calculation | CIF Value × 37.1% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.24 → USITC:3506.91.50.00 |
📌 Explanation:
- Lowest Total Rate (37.1%).
- Requirement: Must prove the adhesive is primarily based on polymers listed in Chapters 39.01-39.13 (e.g., epoxy, polyurethane resins).
- Risk: If Customs determines it is a "foundry binder" (Chapter 38), this classification may be challenged.
🎯 5. 3506.99.00.00 — Other Prepared Adhesives (High Performance)
| Item | Content |
|---|---|
| Base Tariff | 2.1% |
| USITC Surtax | +25% |
| IEEPA Surtax | +10% |
| Total Rate | 37.1% |
| Tax Calculation | CIF Value × 37.1% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.24 → USITC:3506.99.00.00 |
📌 Explanation:
- Also offers the lowest total rate (37.1%).
- Usage: For "high-performance" casting adhesives that don't fit the polymer-specific subheadings or are general-purpose prepared glues.
- Strategy: Often used when the specific chemical composition is complex or blends multiple types.
🛠️ IV. Customs Clearance Practical Advice (Practical Pitfall Avoidance Guide)
✅ 1. Document Preparation Checklist (Non-negotiable)
| Document | Required? | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail chemical composition, VOC levels, and specific use (mold vs. sealant). |
| ✅ Safety Data Sheet (SDS) | ✔️ | Crucial for chemical products; must indicate "Eco-Friendly" attributes (e.g., water-based, low-VOC). |
| ✅ Product Photos (Including Label) | ✔️ | Clear image of the container, labeling "Casting Adhesive" or "Binder." |
| ✅ Commercial Invoice | ✔️ | Must accurately describe the product as "Eco-Friendly Casting Adhesive" or "Prepared Binder for Foundry." |
| ✅ Certificate of Origin (CO) | ✔️ | If not China-origin, may qualify for reduced rates (though 301/IEEPA often still apply). |
| ✅ Usage Statement | ✔️ | A letter confirming the product's end-use (e.g., "Used for binding sand in metal casting molds"). |
✅ 2. Declaration Tips (Key Mantras)
🔥 "Specify Use, Declare Base, Avoid Ambiguity!"
| Scenario | Correct Declaration Approach | Incorrect Approach |
|---|---|---|
| Explicitly for Molds | Use 3824.10.00.00. Declare "Prepared Binder for Foundry Molds." | Calling it "General Glue" → Risk of audit. |
| General Sealant/Filler | Use 3214.10.00.10/.20. Declare "Sealant/Putty for Casting Gaps." | Calling it "Binder" if it's not for structural mold binding. |
| Polymer-Based Resin | Use 3506.91.50.00/.99.00.00. Declare "Prepared Adhesive, Polymer-Based." | Failing to identify polymer base → Misclassification. |
| Ambiguous "Casting Adhesive" | Provide SDS + Usage Letter. Choose 3824 if primary use is mold binding. | Vague description "Casting Chemical" → Delays. |
✅ 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| "Eco-Friendly" Claims | Provide third-party certification (e.g., Green Seal, EPA Safer Choice) to support "Eco-Friendly" label, though it doesn't change HS Code. |
| Blended Chemicals | If it contains multiple binders, declare the principal component. If equal, use the last possible principle (general adhesives). |
| Samples vs. Commercial | Same HS codes apply. Ensure "Value" on invoice is accurate for duty calculation. |
| High-Performance Resins | If it's a specialized epoxy/polyurethane, 3506 codes may be more defensible than 3214. |
🌍 V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3824.10.00.00 |
41.0% (Specific) 3506: 37.1% (General) |
No specific certification, but SDS required. | 301 & IEEPA surcharges apply. |
| 🇨🇳 China | 3824.10.00.00 |
6.0% | CCC (if applicable), Environmental Label. | No 301/IEEPA surcharges. |
| 🇪🇺 EU | 3824.10.00.00 |
6.7% | REACH Registration, CLP Labeling. | No EU-wide surcharges, but VAT applies. |
| 🇬🇧 UK | 3824.10.00.00 |
6.0% | UK REACH, UKCA Marking. | Post-Brexit tariffs similar to EU base rates. |
| 🇨🇦 Canada | 3824.10.00.00 |
0% (CUSMA) | CE/UL (if for industrial use). | CUSMA may reduce duties to 0%. |
| 🇲🇽 Mexico | 3824.10.00.00 |
0% (USMCA) | NOM Certifications. | USMCA may reduce duties to 0%. |
📌 Conclusion:
- USA imposes the highest effective duty due to 301 and IEEPA surcharges.
- 3824.10.00.00 is the most accurate for "Casting Binders," but 3506 codes offer a 3.9% tax saving.
- Non-US markets (EU, Canada, Mexico) have significantly lower base tariffs, making classification less critical for cost but still important for regulatory compliance.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Declaring "Casting Adhesive" as "General Glue" without chemical justification.
👉 Consequence: Customs may reclassify to 3824 (6% base) from 3506 (2.1% base), leading to back taxes + penalties.
❌ Error 2: Ignoring "Eco-Friendly" claims in documentation.
👉 Consequence: If "Eco-Friendly" implies regulated substances (e.g., low-VOC compliance), failure to provide SDS can lead to detention.
❌ Error 3: Using "Casting Resin" interchangeably with "Casting Binder."
👉 Consequence: "Resin" may fall under Chapter 39 (Polymers) or 3506, while "Binder" is 3824. Misclassification leads to delayed clearance.
❌ Error 4: Assuming "De Minimis" applies.
👉 Consequence: Incorrect. Chemical products from China are excluded from de minimis (Section 321) due to IEEPA/301 rules. Always declare full value.
✅ Correct Approach:
"Eco-Friendly Water-Based Casting Binder for Foundry Molds, Low-VOC, Based on Silicate Resin, SDS Attached, Model: ECO-CAST-100"
🎯 VII. Conclusion: Precise Classification Saves Money and Time!
🎯 Remember These Key Points:
🔹 "Specific Use Wins: Foundry Binder = 3824 (41%) vs. General Adhesive = 3506 (37.1%)."
🔹 "SDS is King: Always provide Safety Data Sheet for chemical products."
🔹 "No De Minimis: High duties apply, declare accurately to avoid penalties."
📌 Pro Tip:
If your product is polymer-based (e.g., epoxy, polyurethane) and not explicitly a "mold binder," consider 3506.91.50.00 or 3506.99.00.00 for a 3.9% tax saving. However, ensure your product literature supports this classification.
Request an Advance Ruling if unsure, to mitigate audit risks.
📣 Immediate Action:
📞 Consult a Customs Broker + Provide SDS + Verify Chemical Composition
🚀 Ensure smooth customs clearance, reduce costs, and maximize profit!
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Every percentage point matters in global trade!
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) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — 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 — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — 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.