Mold Resistant Sealing Tape
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3921904090 | 39.2% | CN | US | Official Doc |
| 5903102010 | 35.0% | CN | US | Official Doc |
| 3919102055 | 40.8% | CN | US | Official Doc |
| 5903102090 | 35.0% | CN | US | Official Doc |
| 3919905060 | 40.8% | CN | US | Official Doc |
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AI Analysis
π‘οΈ Mold-Resistant Sealing Tape
π HS Code & Tariff Guide | 2026 Customs Classification & Duty Breakdown | Expert Compliance Strategy
π One Product, Five HS Codes β Know Exactly Where It Fits!
π¦ δΈγProduct Definition & Classification: What Is Mold-Resistant Sealing Tape?
Mold-Resistant Sealing Tape is a flexible, adhesive-backed tape designed to seal joints, gaps, or edges in environments prone to moisture, mold, and mildew β commonly used in construction, HVAC systems, bathrooms, basements, and industrial enclosures.
π Key Features: - Material: Plastic (e.g., PVC, polyethylene, or polymer-based film) - Form: Flat, flexible strip or band (tape-like) - Function: Sealing, waterproofing, mold inhibition - Structure: Often coated, laminated, or impregnated with plastic/resin layers - Not a simple adhesive strip β it has functional performance beyond basic adhesion
β οΈ Critical Distinction: - If itβs just a plastic film with adhesive β likely 3919.90.50.60 - If itβs coated, laminated, or impregnated with plastic β may fall under 5903.10.20.x0 - If itβs thin, flexible, and shaped like a band β could be 3921.90.40.90
π δΊγHS Code Classification Breakdown (2026 Official Tariff Table)
| HS Code | Product Description | Tax Rate | Key Classification Criteria |
|---|---|---|---|
3921.90.40.90 |
Plastic films, foils, and tapes not otherwise specified; plastic-based, band-like form, used for sealing | 39.2% | Material: Plastic Shape: Flat, flexible, band-like Function: Sealing |
5903.10.20.10 |
Coated, impregnated, or laminated fabric/tape with PVC or similar plastic; functional layering | 35.0% | Plastic coating/layering Not a pure film β has composite structure |
3919.10.20.55 |
Flat, band-shaped plastic products not elsewhere specified; not used as film | 40.8% | Shape: Flat, ribbon-like Material: Plastic Not a film or foil |
5903.10.20.90 |
Plastic or rubber-coated/layered tapes; non-specific category for composite tapes | 35.0% | Multi-layered structure Plastic or rubber coating Functional sealing |
3919.90.50.60 |
Adhesive tapes with plastic base, not otherwise specified | 40.8% | Plastic substrate + adhesive Tape form Mold-resistant properties |
β Why Multiple HS Codes?
Because form, material, and construction determine the classification β not just the name.
π° δΈγ2026 Tariff Breakdown (US Market | China-Origin)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: November 10, 2025 (inclusive)
π― 1. 3921.90.40.90 β Plastic Films, Foils & Tapes (General)
| Item | Detail |
|---|---|
| Base Duty | 4.2% |
| Section 301 (USITC) Additional Duty | +25.0% |
| Section 122 (IEEPA) Additional Duty | +10.0% |
| Total Duty | 39.2% |
| Tax Basis | CIF Value Γ 39.2% |
| De Minimis Exemption | β Not available (denied under 9903.88.01) |
| Legal Pathway | IEEPA:9903.01.25 β IEEPA:9903.01.24 β USITC:3921.90.40.90 β FOOTNOTE:9903.88.01 |
π Why This Applies:
- The tape is plastic-based, flat, band-shaped, and used for sealing β fits "other plastic tapes" under 3921.90.40.90.
π― 2. 5903.10.20.10 β Coated/Impregnated Plastic Tapes
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 (USITC) Additional Duty | +25.0% |
| Section 122 (IEEPA) Additional Duty | +10.0% |
| Total Duty | 35.0% |
| Tax Basis | CIF Γ 35.0% |
| De Minimis Exemption | β Not available |
| Legal Pathway | IEEPA:9901.25 β IEEPA:9903.01.24 β USITC:5903.10.20.10 β FOOTNOTE:9903.88.01 |
π Why This Applies:
- If the tape is coated, laminated, or impregnated with PVC or similar plastic, it falls under 5903.10.20.10, even if the base is plastic.
π― 3. 3919.10.20.55 β Flat, Band-Shaped Plastic Products (Not Elsewhere Specified)
| Item | Detail |
|---|---|
| Base Duty | 5.8% |
| Section 301 (USITC) Additional Duty | +25.0% |
| Section 122 (IEEPA) Additional Duty | +10.0% |
| Total Duty | 40.8% |
| Tax Basis | CIF Γ 40.8% |
| De Minimis Exemption | β Not available |
| Legal Pathway | IEEPA:9903.01.25 β IEEPA:9903.01.24 β USITC:3919.10.20.55 β FOOTNOTE:9903.88.01 |
π Why This Applies:
- If the product is flat, ribbon-like, and not a film or foil, but still made of plastic and used as a sealing tape β it fits 3919.10.20.55.
π― 4. 5903.10.20.90 β Other Coated/Laminated Tapes (Plastic or Rubber)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 (USITC) Additional Duty | +25.0% |
| Section 122 (IEEPA) Additional Duty | +10.0% |
| Total Duty | 35.0% |
| Tax Basis | CIF Γ 35.0% |
| De Minimis Exemption | β Not available |
| Legal Pathway | IEEPA:9901.25 β IEEPA:9903.01.24 β USITC:5903.10.20.90 β FOOTNOTE:9903.88.01 |
π Why This Applies:
- If the tape has a multi-layered structure (e.g., plastic + adhesive + release liner) and is not pure plastic film, it may be classified here.
π― 5. 3919.90.50.60 β Adhesive Tapes with Plastic Base
| Item | Detail |
|---|---|
| Base Duty | 5.8% |
| Section 301 (USITC) Additional Duty | +25.0% |
| Section 122 (IEEPA) Additional Duty | +10.0% |
| Total Duty | 40.8% |
| Tax Basis | CIF Γ 40.8% |
| De Minimis Exemption | β Not available |
| Legal Pathway | IEEPA:9903.01.25 β IEEPA:9903.01.24 β USITC:3919.90.50.60 β FOOTNOTE:9903.88.01 |
π Why This Applies:
- If the tape is plastic-based, adhesive-backed, and used for sealing, it falls under this "other adhesive tapes" category.
π οΈ εγCustoms Clearance Best Practices (Pro Tips to Avoid Penalties)
β 1. Essential Documentation (MUST Provide)
| Document | Required? | Why It Matters |
|---|---|---|
| β Product Technical Specs | βοΈ | Clarify material (PVC? PE?), thickness, mold resistance |
| β Material Safety Data Sheet (MSDS) | βοΈ | Prove plastic composition |
| β Product Photos (Front, Back, Cross-Section) | βοΈ | Show layering, adhesive, band shape |
| β Certificate of Origin (CO) | βοΈ | Critical for duty calculation |
| β Commercial Invoice | βοΈ | Must state: "Mold-Resistant Sealing Tape, Plastic Base, Adhesive-Backed" |
| β Third-Party Test Report | βοΈ | Mold resistance, adhesion, durability (e.g., ASTM, ISO) |
| β Packaging & Labeling | βοΈ | Show branding, model, material info |
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| Scenario | Correct HS Code | Wrong Code | Risk |
|---|---|---|---|
| Plain plastic band with adhesive | 3919.90.50.60 or 3921.90.40.90 |
3921.90.40.00 |
40.8% vs 39.2% β minor, but still wrong |
| PVC-coated, laminated, multi-layer | 5903.10.20.10 or 5903.10.20.90 |
3921.90.40.90 |
Missed 5% tax! |
| Flat, ribbon-like, no coating | 3919.10.20.55 |
3919.90.50.60 |
Higher tax risk |
| No adhesive, just plastic strip | 3919.10.20.55 |
3921.90.40.90 |
Wrong form β higher duty |
β 3. Special Cases
| Situation | Recommended Action |
|---|---|
| Tape with mold inhibitor additives | Clearly state in invoice: "Contains anti-mold agent (e.g., silver ion)" |
| Tape used in medical/industrial settings | Consider filing for special use exemption (requires documentation) |
| Tape with PET or non-plastic base | Re-evaluate: may not qualify for plastic-based HS codes |
| Tape sold in bulk rolls vs. pre-cut strips | Both can be classified the same β form is key, not size |
π δΊγGlobal Market Duty Comparison (2026)
| Country | Recommended HS Code | Duty | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3919.90.50.60 / 3921.90.40.90 |
39.2%β40.8% | FDA, ASTM | Highest duty |
| π¨π³ China | 3919.90.50.60 |
5% | CCC, RoHS | No extra tariffs |
| πͺπΊ EU | 3919.90.50.60 |
0% (if CE) | CE, REACH | No 301/IEEPA |
| π¦πΊ Australia | 3919.90.50.60 |
5% | RCM | No extra taxes |
| π―π΅ Japan | 3919.90.50.60 |
0% | PSE | No additional duties |
π Insight:
- The US is the only market imposing 301 + IEEPA tariffs on this product. - China-origin products face the highest effective duty (up to 40.8%).
π ε γCommon Mistakes & How to Avoid Them (Avoid Costly Penalties!)
β Mistake 1: Declaring as βadhesive tapeβ without specifying plastic base
π Result: Misclassification β higher tax, audit risk
β Mistake 2: Not showing cross-section photo
π Result: Customs canβt verify layering β delayed clearance
β Mistake 3: Using generic name like βsealing tapeβ without material detail
π Result: Risk of being classified under higher-duty code
β Mistake 4: Assuming all plastic tapes are the same
π Result: Paying 40.8% instead of 35.0% β $10,000+ extra per shipment
β Correct Declaration Example:
βMold-Resistant Sealing Tape, 50mm x 10m, Plastic (PVC) Base, Adhesive-Backed, Anti-Mildew Treatment, Model XYZ, Tested per ASTM D3359β
π― δΈγConclusion: Precision Matters β One Misstep = Thousands in Extra Duty!
π― Key Takeaway:
πΉ Form + Material + Structure = HS Code
πΉ Plastic tape with adhesive? β3919.90.50.60or3921.90.40.90
πΉ Coated/laminated? β5903.10.20.x0β 35.0%
πΉ Flat, ribbon-like, no coating? β3919.10.20.55β 40.8%π Pro Tip:
- Get a pre-ruling (Advance Ruling) from U.S. Customs before shipping large volumes. - Use a licensed customs broker with experience in plastic tapes & sealing products.
π£ Act Now!
π Contact a certified customs broker + Provide product photos, specs, and test reports
π Secure your HS Code, lock in the lowest duty, and avoid surprise penalties!
β¨ Smart Classification = Lower Costs, Faster Clearance, Zero Risk!
πΌ Your next shipment starts with the right HS Code β donβt gamble!
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.