I actually found a link of a guy using a 3% mix that worked wonders on his old apple computer. It was a cornstarched thickened gel though, and his recipe calls for a 1/4 teaspoon of oxy for every 50ml instead of 500, which seemed kinda extreme. I left a blacklight on it while the experiment resides in the water room - its my shittier snes anyway, so if it damages it, I wont be too disappointed.