| HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
|---|---|---|---|---|---|
| 3919102055 | Doc | 60.8% | CN | US | 2025-05-12 |
| 3919905060 | Doc | 60.8% | CN | US | 2025-05-12 |
| 3923900080 | Doc | 58.0% | CN | US | 2025-05-12 |
| 8484100000 | Doc | 57.5% | CN | US | 2025-05-12 |
| 8484900000 | Doc | 57.5% | CN | US | 2025-05-12 |
Double-Sided Adhesive
Double-sided adhesive is a permanently sticky material used to bond two surfaces together. Unlike conventional adhesives which require one surface to be coated, double-sided adhesive features adhesive layers on both sides of a carrier.
Materials
Double-sided adhesives are manufactured using a variety of materials, each offering different properties:
- Acrylic Foam Tape: Offers high strength, durability, and resistance to weathering, UV light, and temperature variations. Commonly used for outdoor applications and bonding dissimilar materials.
- Rubber-Based Adhesive: Provides good initial tack and conformability, suitable for general-purpose bonding and lighter-duty applications. Can yellow and degrade over time.
- Foam Tapes: Consist of a foam core with adhesive on both sides. Provide cushioning and gap-filling capabilities, reducing stress on bonded surfaces.
- Cloth Tapes: Feature a cloth carrier for increased tensile strength and conformability. Often used in packaging, bundling, and masking applications.
- Transfer Tapes: Adhesive is transferred from a liner to the substrate, leaving no carrier. Ideal for clean, precise bonding and applications requiring a thin adhesive layer.
- PET (Polyethylene Terephthalate) Film Tapes: Offer high clarity, dimensional stability, and resistance to solvents and chemicals. Used in electronics and medical applications.
Purpose
The primary purpose of double-sided adhesive is to create a strong, permanent bond between two surfaces without the need for mechanical fasteners, welding, or liquid adhesives. It provides a clean, aesthetically pleasing alternative to visible fasteners.
Function
Double-sided adhesive functions through a combination of adhesion and cohesion:
- Adhesion: The adhesive layer forms a bond with the surface molecules of the substrates being joined.
- Cohesion: The adhesive itself maintains internal strength, resisting tearing and separation under stress.
Usage Scenarios
Double-sided adhesive is widely used in numerous applications:
- Mounting & Hanging: Picture frames, posters, decorations, mirrors, and signage.
- Automotive: Trim attachment, emblem installation, and sound dampening.
- Electronics: Component bonding, shielding, and gap filling.
- Packaging: Sealing cartons, bundling products, and label attachment.
- Construction: Panel bonding, insulation attachment, and weather stripping.
- Crafts & DIY: Scrapbooking, model making, and general repairs.
- Medical: Wound care, device attachment, and skin-friendly applications (specialty adhesives).
Common Types
- Removable Double-Sided Tape: Designed for temporary bonding, allowing for clean removal without leaving residue.
- Permanent Double-Sided Tape: Provides a strong, long-lasting bond.
- Waterproof Double-Sided Tape: Resistant to moisture and suitable for outdoor applications.
- High-Temperature Double-Sided Tape: Maintains adhesive properties at elevated temperatures.
- VHB (Very High Bond) Tape: Acrylic foam tape known for exceptional strength and durability, often used as a replacement for rivets and screws.
- Cloth Tape: Used for bundling, sealing, and light-duty fastening.
Double-sided adhesive products fall under several classifications based on their form and material. Here's a breakdown of relevant HS codes:
- 3919.10.20.55: This HS code covers self-adhesive plates, sheets, film, foil, tape, and strips of plastics, whether or not in rolls, specifically those in rolls of a width not exceeding 20 cm. The total tax rate is 60.8%, comprised of a 5.8% base tariff, a 25.0% additional tariff, and a 30.0% additional tariff effective April 2, 2025. This applies to double-sided adhesive in this format.
- 3919.90.50.60: This HS code also covers self-adhesive plates, sheets, film, foil, tape, and strips of plastics, whether or not in rolls, but categorized as 'Other'. The total tax rate is 60.8%, with the same tariff structure as above (5.8% base, 25.0% additional, and 30.0% additional effective April 2, 2025). This would apply to double-sided adhesive not specifically falling under the width restriction of HS code 3919.10.20.55.
- 3923.90.00.80: This HS code covers articles for the conveyance or packing of goods, of plastics; stoppers, lids, caps and other closures, of plastics, categorized as 'Other'. The total tax rate is 58.0%, consisting of a 3.0% base tariff and a 25.0% additional tariff, increasing to 30.0% effective April 2, 2025. This could apply if the double-sided adhesive is specifically used for packing or conveyance purposes.
Important Note: The applicable tariff for HS codes 3919.10.20.55 and 3919.90.50.60 will change on April 2, 2025, with the additional tariff increasing from 25.0% to 30.0%.