Panamahatman
New member
- Joined
- May 22, 2020
- Messages
- 3
At first I missed that the gold fingers are actually larger foils that run across the front and back of these cards but are covered by the green mask. I accidentally scratched away some of the mask when I used cutters to remove a component (lower right in photo). I don't want to damage the foils by using mechanical force against the mask.
I tried Acetone, and some 22k test solution on the mask, which did not disturb it so I believe that this is true mask and not some other type of film covering. I found old threads and google searches where they discussed using a chemical solution such as methylene chloride. I only have 6 of these cards so I'll pass on the methylene chloride - expensive and overly toxic imo.
Plan B: Use heat to remove connector. Use an xacto blade to cut through the mask down to the pcb at the gold foil boundaries. I have not tried AP yet to remove foils, but what do y'all think - can AP wick beneath 1 cm width of foil to dissolve base metals and free the foil given sufficient time? Thanks,
PHM
I tried Acetone, and some 22k test solution on the mask, which did not disturb it so I believe that this is true mask and not some other type of film covering. I found old threads and google searches where they discussed using a chemical solution such as methylene chloride. I only have 6 of these cards so I'll pass on the methylene chloride - expensive and overly toxic imo.
Plan B: Use heat to remove connector. Use an xacto blade to cut through the mask down to the pcb at the gold foil boundaries. I have not tried AP yet to remove foils, but what do y'all think - can AP wick beneath 1 cm width of foil to dissolve base metals and free the foil given sufficient time? Thanks,
PHM