Asphalt Waterproofing Products
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ποΈ Asphalt Waterproofing Products: HS Code Classification & 2026 US Customs Clearance Guide
π HS Code Reference & Clearance Guide | 2026 Latest Tariff Rates | Professional Compliance Strategy
π I. Product Definition & Classification: Do You Really Understand "Asphalt Waterproofing"?
Asphalt-based waterproofing products are essential for construction, roofing, and infrastructure projects. In international trade, they are broadly categorized into three types based on their form and application:
1. Asphalt Membranes & Sheets (Roll Goods): Flexible, roll-formed sheets used for roofing and underground waterproofing.
2. Liquid Asphalt Coatings & Primers: Viscous liquids or pastes applied by brush, roller, or spray for sealing joints and surfaces.
3. Asphalt-Based Sealants & Mastics: Thick, paste-like substances used for filling cracks and seams.
β οΈ Key Classification Distinction:
- If the product is a roll-formed sheet (even if impregnated with fabric) β It falls under Chapter 68 or Chapter 39 (if composite).
- If the product is a liquid or paste (not a roll) β It falls under Chapter 39 (plastics) or Chapter 38 (chemical products), depending on composition.
- Critical Note: Pure bitumen/asphalt preparations are generally classified under Chapter 27 or Chapter 38, but finished waterproofing articles often fall under Chapter 68 or Chapter 39.
π¦ II. HS Code Classification Details (2026 Latest Tariff Authority Reference)
| HS Code | Product Description | Application Scenario | Form Factor |
|---|---|---|---|
3901.20.00.00 |
Polyethylene in primary forms (if polymer-based asphalt modifier) | Polymer-modified asphalt primers | Liquid/Paste |
3907.99.10.00 |
Other polyacetals, other polyethers and their epoxides, in primary forms | Specialized chemical waterproofing agents | Liquid |
3921.90.65.10 |
Other plates, sheets, film, foil and strip, of plastics (composite with asphalt) | Asphalt-impregnated polymer membranes | Roll/Sheet |
6807.10.00.00 |
Asphaltic roofing, wall, and floor coverings; articles thereof | Most Common: Asphalt roofing felt, rolls | Roll/Sheet |
6815.19.15.00 |
Other articles of stone or of other mineral substances (including carbon fibers) | Stone-backed asphalt waterproofing mats | Sheet/Roll |
3824.99.92.10 |
Other prepared binders for foundry mold core manufacture (if used as binder) | Less common; specific industrial sealants | Paste/Liquid |
π Important Reminder:
-6807.10.00.00is the most frequently used HS Code for standard asphalt roofing rolls and waterproofing membranes.
- If the product is a liquid coating primarily composed of polymer-modified bitumen, it may be classified under3824or3901/3907depending on the dominant chemical component.
- Do NOT classify liquid asphalt coatings as6807unless they are specifically defined as "preformed articles."
π° III. 2026 Latest Tariff Rate Breakdown (Including Additional Duties & Policy Surcharges)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: November 10, 2025 onwards (for subsequent imports)
π― 1. 6807.10.00.00 ββ Asphaltic Roofing/Wall Coverings (Rolls/Membranes)
| Item | Content |
|---|---|
| Basic Tariff | 3.4% (ad valorem) |
| USITC Surcharge | +25% (from USITC Footnote 9903.88.01) |
| IEEPA Surcharge | +10% (ιε―ΉδΈε½/ι¦ζΈ―δΊ§ε, effective Nov 10, 2025) |
| Total Effective Rate | ~39.4% |
| Tax Calculation | CIF Value Γ 39.4% |
| De Minimis Eligibility | β Not Eligible (deny_de_minimis) |
| Legal Pathway | IEEPA:9903.01.25 β IEEPA:9903.01.24 β USITC:6807.10.00.00 β FOOTNOTE:9903.88.01 |
π Explanation:
- The 25% USITC surcharge is part of the Section 301 tariffs on Chinese goods.
- The 10% IEEPA surcharge is an additional levy under the International Emergency Economic Powers Act targeting Chinese-origin products.
- Total ~39.4% is a high tariff, requiring careful cost planning.
π― 2. 3921.90.65.10 ββ Composite Plastic Sheets (Asphalt-Impregnated)
| Item | Content |
|---|---|
| Basic Tariff | 5.7% (ad valorem) |
| USITC Surcharge | +25% |
| IEEPA Surcharge | +10% |
| Total Effective Rate | ~41.7% |
| Tax Calculation | CIF Value Γ 41.7% |
| De Minimis Eligibility | β Not Eligible |
| Legal Pathway | IEEPA:9903.01.25 β IEEPA:9903.01.24 β USITC:3921.90.65.10 β FOOTNOTE:9903.88.01 |
π Note:
- If the product is a composite material (e.g., plastic base + asphalt layer), it may be classified here.
- Higher base tariff than6807, but similar additional duties.
π― 3. 3824.99.92.10 or 3907.99.10.00 ββ Liquid/Paste Waterproofing Agents
| Item | Content |
|---|---|
| Basic Tariff | 0% - 5.3% (varies by specific chemical composition) |
| USITC Surcharge | +25% |
| IEEPA Surcharge | +10% |
| Total Effective Rate | ~35% - 40.3% |
| Tax Calculation | CIF Value Γ Rate |
| De Minimis Eligibility | β Not Eligible |
π Note:
- Liquid products require chemical composition disclosure (MSDS/SDS).
- Misclassification as6807(solid rolls) vs.3824/3907(liquid) can lead to severe penalties.
π οΈ IV. Clearance Practical Advice (Real-World Pitfall Avoidance)
β 1. Required Documentation Checklist (Mandatory)
| Document | Required | Description |
|---|---|---|
| β Product Specification Sheet | βοΈ | Includes composition, viscosity (if liquid), roll dimensions, thickness |
| β MSDS/SDS (Safety Data Sheet) | βοΈ | Critical for liquids/pastes; shows chemical hazards and composition |
| β Product Photos (incl. Label) | βοΈ | Clear view of packaging, labeling, and product form (roll vs. bucket) |
| β Third-Party Test Report | βοΈ | ASTM, ISO, or EN standards for waterproofing performance |
| β Commercial Invoice | βοΈ | Must specify "Asphalt Waterproofing Membrane" or "Liquid Coating" |
| β Certificate of Origin (CO) | βοΈ | For preferential treatment if not from China |
| β Packing List | βοΈ | Details roll weights, carton contents, and accessories |
β 2. Declaration Tips (Key Mantra)
π₯ "Form Defines HS, Label Defines Value, Composition Defines Code!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Asphalt Rolls (Felt/Membrane) | 6807.10.00.00 |
Misdeclare as 3921 β Higher duty |
| Liquid Asphalt Coating | 3824.99.92.10 or 3907.99.10.00 |
Misdeclare as 6807 β Rejection/Seizure |
| Polymer-Modified Bitumen Roll | 3921.90.65.10 (if plastic dominant) or 6807 |
Incorrect form classification |
| Sealant in Cartridge | 3907.99.10.00 or 3824 |
Misdeclare as "roll" β Incorrect HS |
β 3. Special Case Handling
| Case | Handling Advice |
|---|---|
| OEM Custom Rolls | Provide client order + design specs to avoid "non-standard" flagging |
| Liquid Products with Solvents | Ensure MSDS declares flammability; may require hazardous cargo handling |
| Composite Materials (Plastic + Asphalt) | Declare dominant material; if plastic >50%, may go to Chapter 39 |
| Pre-Fabricated Waterproofing Kits | Declare as kit if sold together; otherwise, separate HS codes |
π V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification Requirement | Remarks |
|---|---|---|---|---|
| πΊπΈ United States | 6807.10.00.00 |
~39.4% (China) | None specific | High tariffs; strict origin checks |
| π¨π³ China | 6807.10.00.00 |
5% | None | No additional surcharges |
| πͺπΊ EU | 6807.10.00.00 |
0% | REACH | No additional duties |
| π¦πΊ Australia | 6807.10.00.00 |
5% | RCM | No surcharges |
| π―π΅ Japan | 6807.10.00.00 |
0% | JIS | No surcharges |
π Conclusion:
- The US imposes significant additional duties (~39-41%) on asphalt waterproofing products from China.
- EU and other major markets do not impose these surcharges, making them more cost-effective for Chinese exporters.
- Consider supply chain diversification to Vietnam, Mexico, or Thailand for IEEPA exemption eligibility.
π VI. Common Mistakes & Pitfalls (Lessons Learned)
β Mistake 1: Declaring liquid coatings as rolls (6807)
π Consequence: Customs rejects declaration β Demurrage charges + return shipment
β Mistake 2: Failing to provide MSDS/SDS for liquid products
π Consequence: Hazardous cargo hold β Delayed clearance + fines
β Mistake 3: Not distinguishing between polymer-modified and pure asphalt
π Consequence: Misclassification β Underpayment + penalties
β Mistake 4: Using vague terms like "Waterproofing Material"
π Consequence: Customs requests detailed description β Delays + audits
β Correct Practice:
"Asphalt Roofing Membrane, 3mm thick, fiberglass reinforced, roll-packed, ASTM D2268 Standard, Model XYZ"
OR
"Polymer-Modified Bitumen Liquid Coating, Water-Based, 20L Bucket, MSDS Provided, Model ABC"
π― VII. Conclusion: Precision Classification Saves Money!
π― Remember the Mantra:
πΉ "Rolls go to 6807, Liquids go to 3824/3907, Composites need proof, Misclassification costs!"
πΉ "US Tariffs are high, think twice before shipping, diversify supply chain!"
π Pro Tip:
If your asphalt waterproofing products are originally from Vietnam, Mexico, Thailand, or Malaysia, you may qualify for IEEPA exemption, reducing tariffs to 0%~5%.
Recommend Advance Ruling from CBP to avoid clearance risks.
π£ Take Action Now:
π Contact a professional customs broker + Provide Product Photos + Apply for HS Code Advance Ruling
π Let your waterproofing products clear smoothly, reduce costs, and boost profits!
β¨ Professional Clearance Starts with Accurate Classification!
πΌ Every cent saved is pure profit!
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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.