Polyimide tape
Masks the gold fingers through wave soldering, the solder pot and tin spray. No residue at 200 °C for 1 hour (data sheet); no residue at 260 °C for 1 minute (in-house test).
Rated to 220 °C (spec sheet)
About polyimide tapeCircuit boards through the solder pot — and the tape peels off with no residue.
Through the solder pot, tin spray and wave soldering, polyimide tape masks the gold fingers; PCB plating shops use green polyester tape for masking. Both peel off with no residue.
- 200 °C · 1 hour
- Polyimide tape, no residue (data sheet)
- 260 °C · 1 minute
- Polyimide tape, no residue (in-house test)
- Halogen-free
- Polyimide tape: F, Cl, Br, I not detected (SGS)
One strip of tape guards the gold fingers through three steps.
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01 · On
Gold fingers and anything else that must stay free of solder are covered first.
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02 · Through the heat
Through the solder pot, tin spray or wave soldering, the tape goes through the heat with the board.
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03 · Off
After soldering, peel the tape off — no adhesive left on the gold fingers.
Two tapes, two different jobs
Both are high-temperature tapes, used in different places.
Green polyester tape
Used for masking in PCB plating shops. Peels off with no residue after 200 °C for 30 minutes (data sheet).
Rated to 200 °C (spec sheet)
About green polyester tapeSGS tested: polyimide tape — fluorine, chlorine, bromine and iodine all not detected; green polyester tape — chlorine 190 mg/kg, well below the 900 mg/kg limit; both tapes — all ten RoHS substances not detected.
Still deciding? Start with the question closest to yours.
Does the tape need to survive soldering heat? Is it for PCB plating? Or are you comparing two peel values? Choose the one you are dealing with now.
Is your board going through a solder pot or wave soldering?
Start with PI tape. You can check the available grades, published heat limits and the no-residue result at 200 °C for 1 hour.
See PI tape for soldering →Are you masking parts during PCB plating?
Start with green polyester tape. You can see the grades and the published no-residue result at 200 °C for 30 minutes.
See green tape for plating →Are you comparing peel values from two tapes?
First check whether they were tested on the same surface, at the same angle and speed. Otherwise, the two numbers may not be comparable.
See how peel is tested →
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
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