Thanks 128 I had it backwards, my performa 200 has a metallic paint, and since the computer is dead and the bezel has a hairline crack might as well try a couple cautious but not disastrous experiments (best case its still a Frankenstein)

My SE has the rough paint, and spaying that with plastidip would be impossible to remove cause its quite rough on a small scale

anyway here and now, just lay on the gel thick, wipe it off and apply a fresh coat regularly, and keep the light even by moving the pieces around during exposure and you should be fine

but in any case its not a "ronco set and forget" situation, you have to be mindful of it and stay on top of it, when I did my //c I checked on it every 30-45 min