Refractory Repair Material (Quick Drying)
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3214100010 | 38.7% | CN | US | Official Doc |
| 3824994900 | 41.5% | CN | US | Official Doc |
| 3214100090 | 38.7% | CN | US | Official Doc |
| 3824500050 | 35.0% | CN | US | Official Doc |
AI Analysis
𧱠Fireproof Repair Material (Quick Drying)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
π I. Product Definition & Classification: What is "Fireproof Repair Material"?
Fireproof Repair Material (Quick Drying) is a specialized chemical compound used for sealing, filling, and repairing gaps, cracks, or damaged areas in construction or industrial settings where fire resistance is required.
In international trade, it is generally categorized under Chemical Products and Preparations. Due to the vague nature of the name "Repair Material," customs authorities often look for specific chemical compositions or functional characteristics to determine the correct HS Code. Based on common industry knowledge, this product is likely a resin-based, mineral-based, or synthetic mixture designed for quick application and hardening, with fire-retardant properties.
β οΈ Key Distinction Points: - Is it a Sealant/Filler? If itβs used for sealing joints or filling cracks with a putty-like consistency β Likely 3214 (Putties; Preparations for Filling...; Mastic...; Caulking Compounds). - Is it a General Chemical Mixture? If itβs a broader chemical preparation not specifically defined as a sealant β Likely 3824 (Prepared Binders...; Chemical Products...). - Is it a Mortar/Concrete? If itβs a dry powder mixed with water to form a rigid structural bond β Likely 3824.50 (Non-refractory mortars and concretes).
π¦ II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Tax Rate (US/China Origin) |
|---|---|---|---|
3214.10.00.10 |
Putties, Grouts, and Similar Non-refractory Filling Preparations; Masonβs Preparing Paste | Quick-drying sealants, caulking compounds, resin-based fillers | 38.7% |
3214.10.00.90 |
Other Putties, Grouts, and Similar Non-refractory Filling Preparations; Masonβs Preparing Paste | General-purpose repair materials, fireproof fillers not specifically listed | 38.7% |
3824.50.00.50 |
Non-refractory Mortars and Concretes; Chemical Products and Preparations | Chemical mixtures for repair, potentially involving cementitious or synthetic binders | 35.0% |
3824.99.49.00 |
Other Chemical Products and Preparations (Not Elsewhere Specified or Included) | Generic chemical repair agents, unspecified chemical mixtures | 41.5% |
π Key Reminder: - 3214 Series: Focuses on putties, mastics, and caulking compounds. If your product is applied like a paste or sealant and dries quickly, this is the most logical fit. - 3824 Series: Focuses on general chemical preparations. If the product is a complex chemical mixture without a specific "putty" classification, it may fall here. - 3824.50: Specifically for non-refractory mortars. If the product is cement-based or similar, this code applies. Note that "Non-refractory" here means it is not designed to withstand extreme heat like a brick (refractory), but rather provides fire resistance as a feature.
π° III. 2026 Latest Tariff Rate Breakdown (Including Additional Duties & Policy Add-ons)
β Applicable Country: United States (US)
β Country of Origin: China (CN)
β Effective Time: November 10, 2025 (and subsequent imports)
π― 1. 3214.10.00.10 & 3214.10.00.90 β Putties, Grouts, and Similar Filling Preparations
| Item | Content |
|---|---|
| Base Tariff | 3.7% |
| USITC Additional Duty (Section 301) | +25.0% |
| IEEPA Additional Duty (122 Clause) | +10.0% |
| Total Tax Rate | 38.7% |
| Tax Calculation | CIF Value Γ 38.7% |
| De Minimis Exemption | β Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 β USITC:3214.10.00.10/90 β FOOTNOTE:301 |
π Explanation: - The 3.7% base tariff is for putties and similar filling preparations. - The +25% is the standard Section 301 tariff on Chinese goods. - The +10% is the additional IEEPA tariff (often referred to as the "122 clause" tariff) applied to Chinese imports. - Total 38.7% is a significant cost factor. These codes are considered "high-tax" items for Chinese origin.
π― 2. 3824.50.00.50 β Non-refractory Mortars and Concretes
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| USITC Additional Duty (Section 301) | +25.0% |
| IEEPA Additional Duty (122 Clause) | +10.0% |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value Γ 35.0% |
| De Minimis Exemption | β Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 β USITC:3824.50.00.50 β FOOTNOTE:301 |
π Explanation: - The 0% base tariff makes this code appear attractive. - However, the 25% + 10% add-ons still apply, resulting in a 35% total rate. - This is 3.7% lower than the 3214 codes, making it a potentially cheaper option if the product can be legally classified as a "non-refractory mortar." - Caution: Misclassifying a sealant as a mortar can lead to customs penalties.
π― 3. 3824.99.49.00 β Other Chemical Products and Preparations
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| USITC Additional Duty (Section 301) | +25.0% |
| IEEPA Additional Duty (122 Clause) | +10.0% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value Γ 41.5% |
| De Minimis Exemption | β Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 β USITC:3824.99.49.00 β FOOTNOTE:301 |
π Explanation: - The 6.5% base tariff is higher. - The 25% + 10% add-ons result in a 41.5% total rate. - This is the highest tax rate among the options, so it should only be used if no other specific classification fits.
π οΈ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance Guide)
β 1. Document Checklist (All Required)
| Document | Must Provide | Notes |
|---|---|---|
| β Product Specification Sheet | βοΈ | Must detail chemical composition, drying time, fire-resistance rating (e.g., UL 1479), and application method. |
| β Technical Data Sheet (TDS) | βοΈ | Shows viscosity, tensile strength, and cure time. Crucial for proving itβs a "putty" or "mortar." |
| β Product Photos | βοΈ | Clear images of the container, label, and the materialβs texture (paste, powder, liquid). |
| β Certificate of Origin (CO) | βοΈ | Essential for determining origin-based tariffs. |
| β Commercial Invoice | βοΈ | Must accurately describe the product (e.g., "Quick-Drying Fireproof Sealant Paste") and HS Code. |
| β Packing List | βοΈ | Details net/gross weight, quantity, and packaging type. |
β 2. Declaration Strategy (Key Tips)
π₯ "Be Specific, Be Accurate, Avoid 'Generic' Terms!"
| Scenario | Correct Declaration | Incorrect Declaration |
|---|---|---|
| Product is a Paste/Sealant | "Quick-Drying Fireproof Caulking Compound, Resin-Based" β 3214.10.00.10 |
"Repair Material" β High risk of reclassification to 3824.99.49.00 (41.5%) |
| Product is a Powder/Mortar Mix | "Non-refractory Fireproof Repair Mortar, Cement-Based" β 3824.50.00.50 |
"Chemical Repair Agent" β Risk of higher tax |
| Product is an Unknown Chemical Mix | "Fireproof Chemical Preparation, HS Code 3824.99.49.00" β 3824.99.49.00 |
Use generic name without technical details β Delayed clearance |
β 3. Special Considerations
| Situation | Handling Advice |
|---|---|
| Is it "Refractory" or "Non-refractory"? | Despite the name "Fireproof," most repair materials are non-refractory (they donβt become part of the brick structure but provide a fire barrier). If itβs a high-temp ceramic fiber, it might be different, but most quick-drying repairs are non-refractory. |
| Quick-Drying Feature | Emphasize this in the description to align with sealants/caulks (3214) which are often fast-setting. |
| Origin: China | All codes listed above are subject to Section 301 (25%) and IEEPA (10%) tariffs. No de minimis exemption. |
π V. Global Market Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Total Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3214.10.00.10 / 3824.50.00.50 |
35.0% β 38.7% | UL, ASTM, NFPA (Fire Rating) | High tariffs due to trade policies. |
| π¨π³ China | 3214.10.00 |
5.0% β 10% | CCC (if applicable) | Lower domestic tariffs. |
| πͺπΊ EU | 3214.10.00 |
6.5% β 8.0% | REACH, CLP, CE (if applicable) | No Section 301 tariffs. |
| π¬π§ UK | 3214.10.00 |
6.5% β 8.0% | UKCA, REACH | Post-Brexit standards apply. |
| π¦πΊ Australia | 3214.10.00 |
5.0% | RCM, AS/NZS Standards | Relatively low tariffs. |
π Conclusion: - USA is the most expensive market due to 301 and IEEPA tariffs. - EU/UK have no such add-ons, making them more cost-effective for Chinese goods. - Fireproof ratings (UL, ASTM) are critical for customs and end-user acceptance in all markets.
π VI. Common Mistakes & Pitfall Guide (Lessons Learned)
β Mistake 1: Using generic terms like "Glue" or "Adhesive" for a fireproof repair material.
π Result: Customs may classify it under adhesives (3506), which have different tariffs and regulatory requirements, leading to delays.
β Mistake 2: Misclassifying a quick-drying sealant as a "Refractory Brick."
π Result: Refractory bricks have different HS codes (6902). If itβs not a brick, itβs misdeclaration. Most quick-drying materials are non-refractory.
β Mistake 3: Ignoring the "Non-refractory" label in 3824.50.
π Result: If the product is truly refractory (e.g., high-temp ceramic paste), 3824.50 is incorrect. Check technical specs.
β Mistake 4: Assuming De Minimis applies.
π Result: No! All these codes are on the Excluded List for China-origin goods under Section 301 and IEEPA. Every package is taxed.
β Correct Approach:
"Quick-Drying Fireproof Sealant Paste, Non-refractory, for Construction Use, UL Certified, HS Code: 3214.10.00.10"
π― VII. Conclusion: Professional Declaration, Save Time & Money!
π― Key Takeaway:
πΉ For Paste/Sealant Forms: Use 3214.10.00.10/90 (38.7% tax).
πΉ For Mortar/Powder Forms: Use 3824.50.00.50 (35.0% tax) β Potential Savings!
πΉ For Unspecified Chemical Mixes: Use 3824.99.49.00 (41.5% tax) β Most Expensive.
π― Remember:
πΉ "Specify the Form: Paste, Powder, or Liquid?"
πΉ "Clarify the Chemistry: Resin, Cement, or Synthetic?"
πΉ "Always Check Fire Ratings: UL, ASTM, NFPA?"
π Pro Tip: If you can prove your product is a non-refractory mortar (e.g., cement-based, powder form, mixed with water), you can save 3.7% in tariffs by using 3824.50.00.50 instead of 3214. Provide technical data sheets to support this classification!
π£ Immediate Action:
π Contact your customs broker with the Technical Data Sheet (TDS) and UL Report.
π Request an Advance Ruling if possible to lock in the HS Code and avoid post-import audits.
πΌ Precision in declaration leads to profitability in clearance!
β¨ Professional Customs Clearance Starts with Accurate Classification!
πΌ Every Dollar Saved in Tariffs is Pure Profit!
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) 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.