Mylar Tape For Electronics
 | Mylar Tape For Electronics
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High Temp Tapes Company is a manufacturer of mylar tape for electronics, made for electronic component protection, PCB/FPC temporary fixing, battery bandage, wire wrapping, and insulation work around transformers, motors, and capacitors. This PET polyester film insulation tape combines a thin anti-puncture backing with clean adhesive performance, helping protect sensitive parts without adding unnecessary bulk. It can be supplied as narrow slit rolls, sheets, kiss-cut pieces, or die cut Mylar insulation parts for electronics assembly protection, not for ordinary carton sealing.
Product Photos
Technical Data Sheet
Item | Typical Value |
Product Type | PET polyester film insulation tape |
Backing Material | Mylar PET film |
Adhesive Type | Acrylic pressure-sensitive adhesive, silicone adhesive optional |
Total Thickness | 0.05-0.125 mm |
PET Film Thickness | 25-75 um |
Adhesive Coating Thickness | 20-50 um |
Peel Adhesion to Steel | 4.5-8.5 N/25 mm |
Dielectric Breakdown Voltage | 3.5-7.0 kV, based on thickness and construction |
Tensile Strength | 90-160 N/25 mm |
Elongation at Break | 80-140% |
Operating Temperature | -20 C to 130 C |
Short-Term Heat Exposure | 150 C for 30 min, sample reference only |
Edge Lifting After Heating | Typical sample observation <=1 mm on clean PET panel |
Residue After Removal | Low residue observation after 24 h room temperature dwell, heat-aged sample check available |
Puncture Resistance Check | No visible film break in basic component edge sample observation |
Slit Roll Width Tolerance | +/-0.2 mm for common narrow rolls |
Die-Cut Tolerance | +/-0.2 mm to +/-0.5 mm, based on shape and liner |
Core Size | 3 inch standard, 1 inch optional |
Roll Length | 33 m, 50 m, 66 m, 100 m, or confirmed length |
Color Options | Clear, amber, blue, green, red, black, white |
Release Liner | Optional for kiss-cut and die-cut parts |
Flame Retardant Option | Available by confirmed grade and sample test |
Benefits
- Thin PET backing protects components without heavy thickness build-up.
- Anti-puncture film helps cover battery tabs, wire ends, and coil edges.
- Clean adhesive supports PCB/FPC temporary fixing and removal checks.
- Typical dielectric reference values support electrical insulation selection.
- Color options help identify insulation points and production positions.
- Stable slit edges help reduce lifting on narrow-width applications.
- Die-cut format supports accurate placement on cells, terminals, and PCB areas.
- Heat-aged samples can be checked for edge lifting and adhesive transfer.
- Suitable for hand placement, fixture-assisted assembly, and converted part use.
Applications
- PCB insulation and temporary component fixing
- FPC tail positioning and reinforcement
- Battery bandage and battery tab insulation
- Wire wrapping and wire end protection
- Transformer coil insulation and layer separation
- Motor winding insulation and slot edge protection
- Capacitor insulation wrapping
- Terminal, connector, and sensor protection
- Die-cut insulation pieces for assembly fixtures
- Color identification for electronics production zones
How Can PET Film Tape Support Cleaner Electronics Assembly Protection?
PET film tape is useful when an assembly process needs light holding force, thin protection, and cleaner removal than a heavy adhesive product can provide. The backing helps shield sharp component edges, battery tabs, solder-side areas, and small insulation gaps around PCB or FPC layouts. A clean acrylic adhesive can support temporary fixing or process protection, but removal behavior should always be checked on the actual surface. In a typical batch sample check, tape applied to clean PET and aluminum panels for 24 h showed stable holding with low residue observation after removal.
Product Overview
Mylar tape for electronics is used when a thin film barrier needs to protect small parts, hold components in place, or separate conductive surfaces during assembly. The PET film backing gives the tape good dimensional stability and helps resist puncture from battery tabs, wire ends, coil edges, terminals, and other small contact points. In PCB and FPC work, it is commonly selected for temporary fixing, solder-side protection, flexible circuit positioning, and clean handling during inspection.
The tape should not be selected by color or roll width alone. A 0.055 mm total thickness grade, for example, may use about 25 um PET film with a controlled adhesive coating to balance insulation, flexibility, peel strength, and removal cleanliness. For higher edge pressure areas, such as battery bandage, transformer coils, motor winding, or capacitor insulation, a 0.08-0.125 mm grade is often more suitable. During sample checks, customers often review 24 h room temperature holding, heat-aged edge lifting, adhesive transfer, and residue after removal.
Real surface testing is important because electronics assemblies are rarely identical. Solder flux residue, coating type, battery cell film, cable jacket material, metal case finish, winding tension, and dwell time can all change the final bonding result. For this reason, High Temp Tapes Company can prepare narrow slit rolls, liner-backed die-cut pieces, or color-coded samples for validation before production confirmation. Common slit roll width tolerance can be controlled around +/-0.2 mm, while die-cut tolerance is confirmed according to drawing, liner, and part shape.
What Should Be Checked Before Using PET Mylar Tape on Battery, PCB, and Winding Parts?
Before using PET Mylar tape on battery bandage, PCB fixing, transformer coils, motor winding, or capacitor insulation, the real contact area should be reviewed first. Narrow insulation points may need slit rolls or die-cut parts, while wider wrapping areas usually need stable film tension and stronger edge hold. Engineering teams normally check dielectric breakdown, puncture resistance, heat aging, adhesive residue, and edge lifting after assembly. A sample test on the actual part is more reliable than choosing the tape only by thickness, color, or catalog value.
FAQ
Is mylar tape for electronics the same as ordinary packing tape?
No. It is a PET polyester film insulation tape for component protection, PCB/FPC fixing, battery bandage, wire wrapping, and electrical insulation. It is not designed as carton sealing tape.
Can this tape be made into die-cut insulation parts?
Yes. It can be supplied as slit rolls, sheets, kiss-cut parts, or die-cut insulation parts with optional release liner. Shape and tolerance should be confirmed by drawing and sample testing.
Does the tape leave residue after removal?
Residue depends on adhesive grade, surface material, dwell time, heat exposure, and removal angle. Testing on the actual PCB, FPC, battery film, or metal surface is recommended.
What thickness should be selected for electronics assembly?
Thin grades such as 0.05-0.06 mm are often used for PCB/FPC temporary holding and small component protection. Thicker grades such as 0.08-0.125 mm are usually selected for battery bandage, wire wrapping, and winding insulation.