The Red Paint is probably red alkyd paint to prevent arcing due to humid air condensing in that area on the flass etc. Next time, round over the corners of your screw driver that you use for discharging. Or use a High Voltage probe with usually can flex a bit. And/or just repaint with Red Alkyd.
Same goes for the Aquadag, the graphite based conductive paint. I damaged it on my Vectrex when I had the tube in the shower (as this paint is water based), panicked a bit and then found that this can be bought in spray or paintbrush applied form nearly anywhere. Opted for a spray (used Kontakt Chemie GRAPHIT 33 76009-AA) and there isnt even a seam left to see, also it works perfectly.
I also recapped my 1084 (Philips, Mono, EU PAL) with a slightly adapted cap list based on the 1084-S list from Console5 (only the main filter caps are different due to 220V vs 110V and the audio board of the mono one is different, obviously, and mine is the one with no sharpness control at the front, so 2 caps arent installed in that area, too.. I can upload some pics later. Still waiting for the low ESR bipolar cap though, so i didn't perform the smoke test yet