On
First, cover the gold fingers and anything else that must stay free of solder.
Polyimide tape manufacturer · Taicang, China
Polyimide adhesive tape for PCB masking.
A silicone-adhesive tape for masking PCB gold fingers through solder pots, tin spray and wave soldering. Rated to 220 °C; after 200 °C for 1 hour, it peels off with no residue.
For PCB assemblers, plating shops, die-cutters and distributors · no residue after 200 °C for 1 hour · reply within 24 hours.
- 200 °C · 1 hour
- Peels off with no residue (data sheet)
- 260 °C · 1 minute
- Peels off with no residue (in-house test)
- Halogen-free
- F, Cl, Br, I not detected (SGS)
From taping to peeling, one strip of tape protects the gold fingers.
Also for masking before painting: up to 30 minutes at 200 °C, green tape is enough; for an hour, or up to 220 °C, you need polyimide tape.
Through the heat
The board goes through the solder pot, tin spray or wave soldering with the tape on.
Off
After soldering, peel the tape off — no adhesive left on the gold fingers.
Out of the oven, no adhesive left on the steel.
No residue after 200 °C for 1 hour is on the data sheet, and we tested it ourselves too; 260 °C for 1 minute is an extra test we ran.
1 minute at 260 °C
We put the tape on steel, baked it at 260 °C for 1 minute, let it sit for 2 hours, then peeled it: no adhesive left on the steel. After 1 hour at 200 °C, the same result. Our own tests, September 2026.
The amber is the film
The tape has two layers: 0.025 mm amber polyimide film underneath, and a 0.025 mm coat of silicone adhesive on top (SH-JX001 data sheet). Full rolls are 500 mm wide; the ones in front are slit rolls.
Want the numbers? Open the spec table (thickness, tack, heat rating, roll width)
| Grade | Thickness (mm) | Tack (N/25mm) | Heat rating | Roll width (mm) |
|---|---|---|---|---|
| SH-JX001 | 0.05±0.01 | 7±2 | 220 °C | 500 |
| SH-JX002 | 0.080±0.01 | 7±2 | 220 °C | 500 |
| SH-JX003 | 0.10±0.01 | 7±2 | 220 °C | 500 |
| SH-JX004 | 0.135±0.01 | 7±2 | 220 °C | 500 |
These are the values on our spec sheet; tack is measured on SUS304 mirror steel. The SH-JX001 data sheet gives the method: 180° peel at 300 mm per minute, 23±2 °C, 55±20% RH. Rolls are slit to the width you need.
Choose your next check
Start with the question you need answered.
You do not need to read every page. Choose the question that matches your process, and we will show you the evidence to check before you request a sample.
01 · Process fit
Will it protect the gold fingers through soldering?
See the PCB sequence: cover the gold fingers, take the board through the heat, then peel the tape away.
See the PCB process →02 · Material choiceWould green polyester tape be enough?
Compare its 200 °C, 30-minute masking window with PI tape rated to 220 °C.
Compare the other tape →03 · Data checkAre you comparing peel values?
First make sure the substrate, peel angle, speed, temperature and humidity are the same.
Read the test method →Which step does your board go through? Tell me, and I'll pick the tape.
“Solder pot, wave soldering, tin spray or plating? How hot, and for how long? Those two things are enough.”
If you have a tape you use now, send us a piece — we'll test it first, then match it and aim to do better. I'll reply within 24 hours: leave me a message with the button below, or email me directly.
Email: daodao@siliconefilmtape.com
Daodao Your contact
Want to try a sample? Send it today, hear back within 24 hours.
Samples are free; you cover the freight.
Request a free sample →
Daodao Your contact