I am repairing a Panasonic wireless phone. It has a molded silicon push pad which contains all the phone's buttons. Behind each 'button' is a small black deposit which, when the button is pressed, contacts a pwb land. There is, was, a gel coating on the board. I didn't know if it was crap from the kitchen or an electrolyte; something that was supposed to be there. What is it, and where can I purchase the gel... if indeed it isn' t old food? (Yup, I cleaned it off, and now the phone buttons don't work at all) Thanks.
- posted
15 years ago