There are a million and a half posts on Glass Frit. I am a grip tape guy- call me old-school.
Once your frit wears down (if it does) … How do you best prep your board for grip tape?
I’ve got an old (~2007) Loaded Vanguard, and the stock frit is absolutely useless, but still enough of a pain in the ass to not want to just plop the griptape on-top of it. Sand paper?
This is a good question because when I F up on my frit I want to know how to fix it
@glyphiks @rosco @Sender @PedroMcJimenez
I could use this information as well
I have no experience, but have read heat gun + scraper and maybe some acetone is the way to go.
Oh, and lots of sweat and cussing.
Endless sanding may work 
I used a random orbital sander to remove the clear frit that came on a bamboo cruiser deck of mine. However, I am pretty sure medium glass frit would just shred the sandpaper disc. Perhaps you need to use something to loosen the epoxy first?
Hammer and chisel.
I used a brick from Home Deport that is designed to file tile and grout. Works great.
For some reason I don’t have a dremel, and I need to purchase a router, so this sounds like a great option… Thank you!
If it is locked in epoxy or even better on a canvas with epoxy, using a heat gun rules the world. Heat a corner, start lifting it.
Continue heating at the unlifted area while peeling. 
Profit.
WTF mind blown. Is that epoxy? What kind? Why isn’t it bonded to the wood? Was the wood not sanded first? So many questions.
It was bonded with epoxy. Epoxy is a polymer. Polymers dislike heat and start melting under it. Also, a thin layer of epoxy gets heated much faster than the wood if you use a powerful heatgun.
The downside is the adhesion layer of epoxy left under that needs to be sanded off.
Looks like the epoxy was only bonded to the canvas, not the wood. If you get epoxy on wood, no way in hell you’re getting it off with a heat gun.
True, noted it in the last reply. 
So it’s like Super Grip Tape 5000. Got it.
I would have never tried that
It is quite rough, the leftover adhesion surface, but it will never beat grip tape or frit/frit with skinning.
Now THATs skinning a deck! 
There are many ways to skin a cat deck.
If
([Hourly pay] x [# of hours it takes to do this]) + [how much you value your mental heath] + [materials and cleanup] > cost of the deck
Then
Buy a new deck imo
Doesn’t apply to custom decks sadly.
