Many seem under the impression that the battery leaks in a polysix, say, are a leaking ACID - which isn't true.. and I try to explain to people that they should use a mild acid to clean up and neutralize the spills... but this video explains it FAR better - and explains excellently exactly WHAT components are likely to be affected on your polysix. I think it's been a source of confusion for too long. Pay particular attention to the explanation of the elecrochemical series at around 11 minutes in - near the middle of the video!
cheers
https://www.youtube.com/watch?v=E2pRVNnjApM