How to protect a signature?

You can have it clear-coated (I think). It won't remain perfect if you keep playing it, but it can last for a long time and wont be prone to fading. The only way to keep it perfect is if you stop playing it and put it in a protective glass display (for show).

Same advice as above.

Congrats on the autograph!

cryogenically freeze it !!! Otherwise same as above.

when it fades go to vai show againg and ask mr. vai to sign it again
Les Paul signed Evo twice for same reason

double post. sorry!

put a laminate on it or just do as above...

If it does fade, and you want Vai to sign it again, bring along a gold marker. Goes better than blue.

I got my truss cover signed so as to avoid any fading. And sroyboyk that sig rules.

sroyboyk said:

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That's nice , he even include some semiquavers in it

I'm glad Vai signed the back of the headstock on my universe instead of the body. No need to worry about it rubbing off since I never really touch the back of the headstock.

Alternatively just buy a another Jem that he has signed, there are quite a few of them out there!

I think that unsigned jems should be worth more as there are probably fewer.

I would like to take my jem to get signed by Vai, and get him to write ouch! next to all the dings. It would take him a while.

Lol......

And I think you're all crazy for letting anyone sign a Jem! I wouldn't approve even if Elvis signed it. It's just ... WRONG!

Personally, I would have had him sign something like the pickguard because you can just swap a new one on for playing and no worries about damaging the autograph. You can also get rattlecan clearcoat to use on the signed pickguard to protect it. Just hit it in multiple, even, light sprays and you'll be good to go. Super cheap way to go, too.