I was doing some maintenance on my 1977 Ludwig kit with white cortex wrap, and all I did was wipe the wrap with an only very slightly damp paper towel and now the wrap has sort of a cloudy look to it, almost like the texture of paper when you hold it up to a light. Before it looked like solid white plastic. luckily I stopped when I noticed, but the same thing happened with both lightly soapy water and just plain water. I don't know what I did wrong, I watched multiple videos on cleaning drums and that's what they recommended. Is it somehow stained or did the water seep into the plastic somehow? I am really confused. Any help would be greatly appreciated!