Double-Sided Tape
PET, non-woven, transfer and tissue tapes for electronics, automotive and appliance assembly.
View productFunctional Tapes: Conductive, PI & Aluminum Foil
Conductive, polyimide, aluminum foil and thermal tapes for grounding, EMI shielding, insulation and high-temperature protection. Supplied in rolls or precision die-cut parts.
Slitting & die-cuttingSample timing at quotationRoHS / REACH documentsExport from Shenzhen
Overview
Conductive, polyimide, aluminum foil and thermal tapes for grounding, EMI shielding, insulation and high-temperature protection. Supplied in rolls or precision die-cut parts.
Start with a sample. Tell us the substrate, part size and test you plan to run. We will propose the carrier, adhesive and liner, then produce a sample for validation before mass production.
Construction
Typical build-up for this product family. Layer order, carrier and thickness vary by grade.
| Layer | Typical material |
|---|---|
| Release liner | PET or glassine |
| Adhesive | Acrylic or silicone, conductive or insulating |
| Carrier | Copper foil · aluminum foil · PI film · conductive fabric |
| Optional layer | Conductive adhesive or thermal interface layer |
Product types
Conductive Copper Foil Tape
Grounding, EMI shielding and low-resistance connections in electronics and battery packs.
Conductive Fabric Tape
Conformable shielding for cables, connectors and flexible circuits.
Polyimide (PI) Tape
High-temperature masking and insulation for PCB, battery and electronic manufacturing.
Aluminum Foil Tape
HVAC duct sealing, thermal reflection, moisture barrier and insulation facing.
Thermal Conductive Tape
Heat transfer between components, heat sinks and housings.
PVC Electrical Insulation Tape
Conformable plasticised PVC backing for harness wrapping, splice insulation and winding. The voltage class and flame rating come from the grade your application specifies.
Specifications
CarrierCopper · aluminum · PI · conductive fabric · PVC
AdhesiveAcrylic · silicone · conductive acrylic
Thickness0.03–0.3 mm (carrier and adhesive dependent)
ElectricalSurface resistance and shielding effectiveness by grade
Temperature range−40 °C to +260 °C for PI grades
ConvertingSlitting · die-cutting · laser cutting · kitting
MOQSingle rolls for evaluation; die-cut quantities confirmed at quotation
Lead timeSample and production timing confirmed at quotation
Values are typical and grade dependent. Confirm the final specification on the TDS for your selected product.
Applications
PCB grounding and EMI shieldingBattery module insulationHigh-temperature maskingHVAC duct sealingCable and connector wrappingThermal management
What actually decides the grade in this family
A family is not a product. These are the questions that narrow it down to one construction, in the order we ask them.
Which function is being asked for
Grounding, shielding, insulation, thermal transfer and high-temperature masking are different problems. A conductive tape that insulates badly and an insulating tape that conducts well are both correct answers to different questions.
Contact resistance versus bulk resistance
A grounding joint cares about the resistance through the bond line to the mating surface; a shield cares about continuous coverage and seam quality. Ask for the value measured in the assembly, not only on the roll.
What the adhesive may touch
Copper, nickel-plated surfaces, cell casings and passivated finishes tolerate different chemistries. The wrong adhesive can discolor a contact over time even when the tape conducts perfectly.
The thermal profile after bonding
Solder reflow, wave solder, cure ovens and battery pack cycling each set a ceiling. Polyimide grades survive processes that defeat ordinary film carriers.
How thin and how fragile the carrier is
Foil and film carriers tear at edges, wrinkle on curved surfaces and behave badly at high line speed. Handling is part of the specification.
Die-cut and placement method
Foil and PI parts are usually supplied on a slit liner with the matrix stripped, because manual peeling of a small conductive part is how a line gets contaminated.
Which construction inside this family
| Construction | Usual reason to choose it | What to check first |
|---|---|---|
| Copper foil tape | Grounding and EMI closure where a low-resistance path to a metal surface is the requirement. | Adhesive resistance under the joint, and whether the contact is plated or bare. |
| Aluminum foil tape | HVAC duct sealing, thermal reflection and moisture barriers; also shielding where aluminium matches the enclosure. | Dissimilar-metal corrosion where foil meets steel or copper in a wet environment. |
| Conductive fabric tape | Conformable shielding on cables, connectors and irregular surfaces. | Abrasion resistance and how the seam is overlapped. |
| Polyimide (PI) tape | High-temperature masking and insulation in soldering, cure and battery processes. | Release force at elevated temperature and whether residue survives the cycle. |
| Thermal conductive tape | Heat path between a component and a sink or housing without a mechanical fastener. | Contact pressure and surface flatness decide the real thermal resistance. |
| Insulation and barrier laminates | Cell and module insulation combining film, foam and adhesive in one part. | Dielectric withstand at the thickness supplied, plus edge coverage. |
| PVC electrical insulation tape | Harness wrapping, splice covering and winding, where a conformable, abrasion-resistant outer layer has to follow a bundle. | The voltage class and flame rating your standard requires, and how the tape behaves at the temperature the bundle actually reaches. |
Every row is a starting point for a test, not a promise about your joint. The third column is the part that usually decides the outcome.
How this product is ordered
These are the items a quotation has to settle before material is cut. Each one is confirmed against your order, so no figure on this page is a standing commitment.
| Specification item | What we confirm |
|---|---|
| Function and value | The electrical or thermal value needed, the standard it is measured against, and the assembly condition it must hold in. |
| Carrier and thickness | Foil, PI or fabric with the gauge you need; foil thickness and coating are stated on the order line. |
| Adhesive | Conductive or insulating, acrylic or silicone, chosen against the surface it will touch and the temperature it will see. |
| Format | Roll, slit roll, pre-cut strip or die-cut part on liner, with the pick orientation for automated placement. |
| Liner and matrix | Liner type, whether the matrix is stripped or weeded, and how the parts are spaced for your feeder or tray. |
| Edge quality | Burrs, whiskers and foil roll-over at the cut edge are specified, because they matter for both safety and shorting risk. |
| Handling and storage | Foil and film grades are packed flat and protected from edge damage; conductive rolls keep their wrapping on until the line. |
| Documentation | The available data sheet, resistance or thermal values for the selected grade, and compliance statements for the market. |
How a claim about this product gets tested
| What gets verified | How it is measured |
|---|---|
| Contact or surface resistance | Measured with a defined probe setup and pressure, because the same tape reads differently on a bare, plated or oxidised surface. |
| Dielectric withstand | Proofed at the supplied thickness for insulation applications, on the part rather than the raw film. |
| Thermal resistance | Reported at the assembly pressure and surface condition, since a laboratory value without pressure is not a design input. |
| High-temperature release | Peel behaviour after the thermal cycle, checked for residue and for damage to the surface underneath. |
Ask for the method and the condition, not only the number: the same material reads differently on a clean test panel and on a part from your line.
How it is packed for export
- Foil and film carriers are packed so the roll face and edges take no weight, since a dented foil roll cuts badly on the next line.
- Conductive and insulating grades are bagged separately from general tape stock so the lot, function and value are unambiguous at the point of use.
- Die-cut functional parts ship on their liner in flat boxes with the sheet count and pick order printed on the label.
- Export cartons use export-grade board with lot, grade, value and quantity marked; pallets for sea freight carry ISPM 15-marked material.
- High-temperature grades are kept out of heat and sunlight in storage so the release behaviour measured at sample stage still holds at use.
Freight term, routing and destination charges are stated on the quotation. The technical guides and the logistics notes explain how each line is derived.
Which industries buy this family
Which converting services apply to it
Brands & materials
3M PI series · tesa functional tapes · Sekisui functional tapes
tesa, 3M and Sekisui are trademarks of their respective owners. Availability and authorization scope vary by product and region. For tenders or regulated projects, ask for the current certificate covering your market.
Questions buyers ask about Functional Tape
Do you supply conductive tape with specified surface resistance?
Yes. We select the carrier and adhesive based on the required resistance, shielding effectiveness and assembly method, and provide the available test data.
Can PI tape be die-cut into small parts?
Yes. PI and foil tapes can be slit, flat-bed or rotary die-cut, and laser-cut depending on the shape and tolerance.
Which foil tape is suitable for HVAC ducts?
Aluminum foil tape with acrylic adhesive is commonly used for duct sealing and insulation facing. The choice depends on temperature, humidity and substrate.
Can you laminate foil or conductive tape with other materials?
Yes. We can laminate tapes with foam, film, liner or another adhesive layer and supply a converted part.
Can you supply tape with a specified surface resistance?
Yes, and the specification has to say how it is measured: probe type, spacing, applied pressure and whether the reading is through the adhesive or across the carrier. Two rolls can both be conductive copper tape and read an order of magnitude apart under different fixtures. We agree the measurement with you at enquiry stage so the incoming check on your line matches the number on our document.
Will a conductive adhesive corrode my contact?
It depends on the adhesive chemistry, the plating and the humidity the joint sees. Bare copper and nickel-plated surfaces behave differently, and a damp environment accelerates what a dry one does not. Where the contact matters, we recommend the adhesive against the finish you actually use and, if needed, propose an insulating border so the conductive path sits only where you want it.
Can polyimide tape survive lead-free soldering temperatures?
Polyimide grades are used for high-temperature masking precisely because they hold their release and their integrity through reflow and cure profiles that destroy ordinary film tapes. The practical limits are peak temperature, time above temperature and how the tape is removed, so we ask for your reflow or cure profile and confirm the grade against it rather than quoting a generic ceiling.
How do you keep die-cut conductive parts clean?
By stripping the matrix on the liner, controlling edge whiskers at the cut, packing parts on their liner in flat boxes and keeping the peel action off the operator bench. Small conductive debris is a shorting risk in an electronics assembly, so cleanliness is specified on the drawing review instead of being assumed.
Application solutions
Electronics Masking & Light BlockingAutomotive Security & IdentificationBattery Fixing & Removable BondingDisplay & Window Bonding
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View productNeed this tape converted to a part?
Send a drawing or a dimensioned photo. We will confirm material, tooling route, tolerance and lead time.