Self Adhesive Copper Foil Tape
 | Self Adhesive Copper Foil Tape
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PVC Electrical Tape Company is a manufacturer of self adhesive copper foil tape for industrial assembly, repair, grounding, and conversion work. The tape combines copper foil backing, acrylic pressure sensitive adhesive, and a clean-release liner, so it can be slit, die-cut, peeled, and applied with stable handling. Common foil options include 25um, 35um, 50um, and 70um, with 3 mm-600 mm slit width choices for narrow strips, wider rolls, and liner-supported parts.
Product Photos
Benefits
- Peel-and-apply structure reduces extra adhesive handling during assembly.
- Release liner protects the adhesive before cutting, positioning, and bonding.
- 25um and 35um foil support bending, wrapping, and light coverage work.
- 50um and 70um foil add body for reinforcement, tabs, and bridge areas.
- 3 mm-600 mm slit width supports narrow strips, wider rolls, and converted parts.
- Pressure sensitive copper tape can be pressed onto prepared metal, plastic, or coated surfaces.
- Liner-supported rolls suit kiss-cut patches, small parts, and repeat placement.
- Sample checks help confirm 4-8 N/25mm peel adhesion, edge lifting, residue, and conductive continuity.
Applications
- Electronic shielding areas that need a thin copper surface with self adhesive backing
- Grounding connection strips for panels, housings, and electrical components
- Cable wrapping where narrow copper strips need clean liner-supported handling
- PCB repair reinforcement and small copper patch placement
- Electrical cabinet touch-up points, conductive tabs, and contact bridges
- Transformer, coil, and motor assembly areas needing a workable copper layer
- Narrow strips or die-cut patches used on production benches and repair stations
What Should Be Checked Before Using Self Adhesive Copper Foil Tape?
Before regular use, test the tape on the same surface used in the project, not only on a clean lab panel. Apply a short strip to metal, plastic, cable jacket, coated part, or painted panel, then check peel force after a short dwell time. In sample checks, 4-8 N/25mm peel adhesion is a practical reference range, depending on surface finish and adhesive grade. The tape should stay flat without obvious residue, copper curling, or edge lifting after 24 h. For grounding or repair reinforcement, check continuity across overlaps and from the copper surface to the connection point. Narrow strips should also be reviewed for liner release, edge burrs, adhesive overflow, and bending stability.
Technical Data Sheet
Item | Typical Value |
Product Type | Self adhesive copper foil tape with release liner |
Copper Foil Thickness | 25um, 35um, 50um, 70um |
Total Thickness | 0.055 mm-0.120 mm |
Adhesive Type | Acrylic pressure sensitive adhesive |
Liner Type | Paper liner or film liner |
Standard Width | 3 mm-600 mm slit width |
Roll Length | 20 m, 25 m, 33 m, 50 m |
Peel Adhesion | 4-8 N/25mm typical sample reference |
Service Temperature | -10 C-120 C typical range |
Slitting Tolerance | +/-0.3 mm for common industrial widths |
Die-Cut Format | Kiss-cut or die-cut parts on liner |
Slitting Check | Edge burrs, adhesive overflow, foil curling |
Application Check | 24 h edge lifting and residue observation |
Conductive Check | Overlap continuity and grounding point check |
Storage Condition | 20 C-30 C, 50%-70% RH, sealed before use |
Product Overview
This self adhesive copper foil tape is made for work where a copper layer must be placed neatly without liquid glue, heat activation, or wet application. The copper foil backing gives the tape a workable metal surface, while the acrylic pressure sensitive adhesive bonds after firm hand or roller pressure. In typical production checks, total thickness is usually controlled within 0.055 mm-0.120 mm, depending on foil thickness, adhesive coat weight, and liner type.
Thickness selection matters in real use. 25um foil is easier to bend around small curves, cable jackets, and light electronic coverage areas. 35um is often chosen as a balanced grade for grounding strips and general repair reinforcement. 50um and 70um have more body, so they are better for contact tabs, bridge connections, and flatter copper paths where the tape should resist curling after placement.
The liner is more than a backing sheet. It keeps the adhesive clean before use, helps narrow strips peel without stretching, and gives the material support during slitting or die-cutting. For very narrow widths near 3 mm, sample cutting should check liner stability, slit-edge burrs, adhesive overflow, and foil curling. The material can be supplied as slit copper foil tape for assembly benches or converted into liner-supported die-cut parts for repeat placement.
How Does Release Paper Improve Slitting, Die-Cutting, and Application?
Release paper is often overlooked, but it has a direct effect on how the tape behaves before it reaches the final surface. It supports the copper foil during narrow-width slitting, kiss-cutting, die-cut handling, and manual positioning. Without a stable liner, thin copper foil can wrinkle, collect dust, stretch, or lift from the edge before bonding. For 25um and 35um foil, the liner helps narrow strips stay flat during peeling and placement. For 50um and 70um foil, it helps hold part shape during cutting and removal from the sheet. A clean-release liner also reduces adhesive contamination and makes copper foil tape with liner easier to place on cable wraps, grounding tabs, and repair patches.
FAQ
Q1: Is this tape the same as electrical insulation tape?
No. It is a copper foil tape with adhesive backing for conductive coverage, grounding support, shielding areas, and repair reinforcement, not insulation wrapping.
Q2: Can the tape be supplied in narrow widths?
Yes. Common slit widths start from 3 mm, and wider rolls can be slit for cable, panel, component, or grounding strip work.
Q3: Which copper foil thickness should be selected?
25um and 35um suit flexible wrapping and general use. 50um and 70um are better for more body, reinforcement, or a flatter copper path.
Q4: What should be tested before batch use?
Check peel adhesion, liner release, adhesive residue, 24 h edge lifting, slit-edge burrs, adhesive overflow, and conductive continuity on the actual application surface.