Electronics > Repair
best method to restore conductive keypads?
coppercone2:
ok, those are not the ones you would use for soft material (maybe 2 flute or even 1 flute for mill cutting ) I think. I have that, but I am a little scared that I will rip up the keypad. Maybe I can try it very carefully. People usually sand very soft materials, they don't have a good reputation for being burred with a burr made for ferrous metal, but in this case it helped. But I am also wondering if you just sand it a little... with a sanding stick. I bought a bunch of sanding sticks.
xavier60:
I have just tried doing the same to a working TV remote. The burr removed the black conductive material at a slow controlled rate. I think a stone burr would be safer though.
Take care, your results may differ.
rfengg:
Cleaning either the pcb pads or the carbon on the keypads is a very temporary fix.....in cases where I have to tried to do this on remote controls, the fix lasts for a month or two even if you are very careful with using the remote.......it looks like once the deterioration has started , it's a very hard to prevent its worsening.
My last resort was to get some copper tapes with conductive glue, cut them into tiny circles and place them over the keypad carbon......works better than the temporary cleaning fix.
TERRA Operative:
I have used this stuff to good effect.
I'm not sure about the long-term durability, but it's not a hard repair to repeat.
https://www.bareconductive.com/collections/all/products/electric-paint
timeandfrequency:
Hi coppercone2,
You might use some graphite paint
This one dries in minutes.
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