Magnetization & Demagnetization any conclusions?

Doug, What do you hear that's different or better when you de-magnetize an LP? How often do you de-magnetize a given LP? I am fascinated by this subject.

How do you magnetize a vinyl record? Static electricity I understand but as far as I know there are no magnetizable elements in vinyl.

I'd be a bit careful about proclaiming the demag of LP's as universally good.I don't know about the Talisman,but though the Furutech did improve some of the LP's we played at a friend(who owns one),it definitely made some discs sound a bit bright to me(only to my own particular tastes).This is a very interesting subject,yet I believe the wealth of acessories available,before we actually spin a disc,is becoming a bit much,BUT I readily admit to being lazy.
A good dry brush,and a decent wet cleaning machine(costing less than my arm or cartridge,hopefully)is all I need! -:)
Best.

The Walker Audio Talisman is in use here. Both on my system and on the systems of some other audio friends, I hear pretty consistent and repeatable improvements when the Talisman is used: greater clarity through the midrange particularly noticeable in the harmonic overtones on strings, blacker backgrounds, often a top end that sounds more extended and pure, better delineation of a broader, deeper and more layered soundstage. The difference is subtle, but very defintely audible and repeatable across four different audio systems.
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I agree with Rushton, however, I still don't think its magnetism, but static electricity that we're eliminating.