....in all my meandering I should mention that my nephews and mine were both NEW floors. I made sure nuthin went into the shop until the floors were done..... and I used several gallons of muriatic acid to make sure it etched good. As I said above, preparation,preperation!
....now on my old shop floor I doubt that chewing gum would dry and stick to it. Years of abuse and all kinds of chemicals of which some/most are now banned.