Conductive Copper Foil Tape

Conductive Copper Foil Tape Backing: conductive copper foil Adhesive: conductive acrylic adhesive Color: natural copper Typical width: 5mm-1000mm Typical length: 20m, 25m, 33m, 50m Format: rolls, sheets, die-cut parts Contact Us

High Temp Tapes Company manufactures conductive copper foil tape for electronic shielding, grounding continuity, and static charge draining work where adhesive-side conductivity is required. The tape uses copper foil backing with conductive acrylic adhesive, so the electrical path can continue across the copper surface and through the adhesive layer after firm pressure. With 18um, 25um, and 35um copper foil options, it is suitable for enclosure seams, PCB grounding pads, shielded room joints, and overlapped shielding areas where stable contact resistance is part of the design requirement.

Product Photos

Product Overview

Conductive copper foil tape is used when a copper surface alone is not enough. The exposed copper face provides horizontal conductivity, while the conductive adhesive layer helps create a vertical contact path from the foil to the applied surface. This is useful when the adhesive side touches plated steel, aluminum panels, copper pads, conductive coatings, or another overlapped strip. If a standard non-conductive adhesive is used, the copper side may still conduct, but the bond line may not provide reliable grounding continuity.

For production reference, copper foil thickness is commonly selected from 18um, 25um, and 35um, with a typical total thickness of 0.06mm-0.10mm depending on the foil build and adhesive coat weight. The adhesive is chosen for pressure contact, peel holding, and low contact resistance after hand or roller pressure. During sample review, a 25mm strip can be checked for 180-degree peel, while two overlapped strips are measured across a 10mm-25mm overlap area to confirm continuity. Test values can change with substrate finish, surface cleanliness, application pressure, and storage condition, so sample checking is recommended before fixed assembly use.

Technical Data Sheet

Benefits

• Combines copper surface conductivity with through-adhesive conductivity for practical grounding paths.
• Helps maintain electrical connection where two strips overlap across enclosure seams or shielded joints.
• Conductive acrylic adhesive reduces contact failure risk compared with standard non-conductive glue layers.
• Supports applications where low contact resistance matters more than simple surface adhesion.
• Release liner allows cleaner slitting, kiss cutting, die-cut handling, and placement during assembly.
• Sample review can include 6-10 N/25mm peel reference, overlap resistance, edge lift, burr observation, adhesive drag, and liner lifting.

What Should Be Checked Before Applying Conductive Copper Foil Tape to Enclosure Seams?

Before conductive copper foil tape is applied to an electronic enclosure seam, the contact area should be clean, dry, and free from oil, dust, loose coating, or oxidation. The important point is not only whether the copper face conducts, but whether the adhesive side can keep a stable electrical path after pressure is applied. In our sample process, two strips are overlapped by 10mm-25mm and checked for continuity across the joint. A 180-degree peel check on stainless steel helps review whether the conductive acrylic adhesive holds without early edge lift. For die-cut parts, the cut edge is also inspected for copper burrs, adhesive drag, liner lifting, or edge deformation, because poor cutting can affect fitting accuracy around PCB shields, grounding pads, and narrow metal seams.

Applications

• Electronic enclosure seams that need a conductive path across joined metal panels.
• PCB grounding pads where adhesive-side electrical contact is required without soldering.
• Shielded room seams and test enclosure joints that require copper foil tape continuity.
• Static charge draining points in electronic equipment and conductive work areas.
• Cable shielding wrap where controlled overlap helps maintain the shielding path.
• Die-cut conductive parts for chassis grounding, board-level shielding, and small contact zones.

How Does Through-Adhesive Conductivity Support Grounding Continuity?

Through-adhesive conductivity means the electrical path can pass from the copper foil backing through the conductive acrylic adhesive layer to the contacted surface. This is different from surface conductivity, where only the exposed copper face carries current. In real assembly work, the adhesive side may contact aluminum panels, plated steel, copper pads, or another tape strip. When the adhesive layer is conductive, it helps reduce contact resistance across these interfaces and supports continuity at overlaps, seams, and grounding points. This is especially important for PCB grounding, static discharge paths, shielded room seams, and enclosure gap shielding, where even a small contact break can weaken the shielding path.

FAQ

Is this the same as ordinary copper foil tape with adhesive?

No. This product is built around conductive acrylic adhesive and through-adhesive conductivity, not only copper surface adhesion.

Can the adhesive side conduct electricity?

Yes. The conductive adhesive layer is designed to support electrical contact between the copper foil and the applied surface after pressure.

What sample checks are useful before production use?

Common checks include 180-degree peel, overlap resistance, grounding continuity, edge lift, and die-cut burr observation.

Can it be used for non-electronic craft or garden use?

It is designed for electronic shielding, grounding, PCB contact areas, enclosure seams, and static discharge applications.