When it comes to high-temperature masking, insulation, and PCB protection, one tape stands above the rest: Kapton Tape, commonly referred to in China as 金手指胶带.
But what makes this amber-colored tape so essential in electronics, aerospace, and manufacturing?
Let’s break it down.

🧪 What Is Kapton Tape?
Kapton tape is made from polyimide film with a silicone adhesive backing.
It’s engineered to withstand extreme temperatures, making it ideal for:
• 📱 PCB soldering
• 🚀 Aerospace insulation
• ⚙️ 3D printing platforms
• 🔋 Lithium battery wrapping
• 🖨️ UV printing equipment
Temperature resistance: -73°C to 260°C
Color: Amber (iconic gold-brown hue)
Adhesive type: Heat-resistant silicone

🏆 Why Is It Called "金手指胶带"?
In Chinese, “金手指” (Golden Finger) refers to the gold-plated terminals at the end of a PCB board.
During wave soldering or reflow, these parts must be protected from solder. Kapton tape is applied to mask the gold fingers, hence the name “金手指胶带”.

🔧 Key Properties That Make Kapton Tape Unique
| Feature | Performance |
|---|
| 🔥 High temperature | Survives soldering up to 260°C |
| ⚡ Electrical insulation | Withstands 6.5~10KV breakdown voltage |
| ❌ Chemical resistance | Resists acids, oils, and solvents |
| 🧼 Clean removal | Leaves no residue after peeling off |
| 🧩 High dimensional stability | Won’t warp or shrink during heating |
🏭 Applications Across Industries
1. Electronics Manufacturing
• PCB gold finger masking
• Coil & transformer insulation
• SMD wave soldering
2. Aerospace & Defense
• Thermal insulation in satellites and aircraft
3. Lithium Battery Assembly
• Tab wrapping, cell insulation, fire barrier tape
4. 3D Printing
• Heated bed surface for ABS/PLA adhesion

🌱 Eco & Safety Certifications
At Lvzhimei, we supply Kapton Tape that meets:
• ✅ ROHS & REACH compliance
• ✅ UL-94 V0 flame retardant standard
• ✅ MSDS & SGS testing

📦 Available Specifications
| Item | Range |
|---|
| Thickness | 0.05mm – 0.15mm |
| Width | 3mm – 500mm |
| Length | 33M / 66M / Custom |
| Adhesion (to steel) | ≥6N/25mm |
| With liner | Optional for die-cutting use |
We also offer die-cut Kapton dots, strips, or shapes for automated PCB lines.

🤝 Why Choose Lvzhimei?
• 🏭 10+ years experience in industrial tape R&D
• 🧪 Free samples with TDS
• 🔄 Fast lead time & global shipping
• 🛠️ OEM/ODM customization
• 🌐 Support for Alibaba / B2B platforms

📝 Final Thoughts
Kapton Tape isn’t just heat-resistant—it’s trusted across industries where precision, durability, and thermal endurance are non-negotiable.
If your process gets hot, you need a tape that can take the heat.
Choose Lvzhimei Kapton Tape—engineered for performance, built for extremes.
