I used to use Isocol, which was only 68% Alcohol. I use the Jaycar Isopropyl alcohol and it worls a treat. I've not seen the diggers brand at bunnings, but I might give it a go next time I'm there. They should all be the same if they are marked as 99.9%

so this type alcohol is fine on the paint on the play field? and is this a good way to clean up after removing old mylar? i have been wondering what products to use. and for that reason have left old looking mylar on the playfeild of my rock machine incase i couldn't clean it up and i opened up a tin of worms with residue i could not remove any potentially hurt paint on playfield.