Many 'recipes' for record cleaning solution seem to be IPA based. However, I've been using a 50:50 mix of purified water and bio-ethanol with 10ml of Ilfotol in 1 litre. You can get the bio-ethanol from any DIY store - its used as a fuel for these fancy household fires - and it's pretty cheap.

Anyrate, it seems to work really well and nothing has disolved yet!! I'm sure I read somewhere that it's pretty much the same mix as recommended by Kieth Monks. I did also use a rinse of purified water for a while, but now I don't bother.