Can you put tempered glass over liquid screen protector

Yes you can i have exactly something like that on my Samsung s20 plastic screen protector with a tempered on top. The plastic ones are far stronger then tempered glass. However tempered glass feel way better it feels like the real screen.

One of the major disadvantages of liquid screen protectors is that when it is applied, it cannot be removed. Since it doesn't offer screen crack resistance, it will shatter. This would mean that your original screen will shatter and you will have to go and repair your screen.

Step2: Removing it is pretty easy you can just peel the glass off like tempered glass and the liquid screen protector will peel off with it. Also, if your glass screen protector is cracked, the same method 1 will help you remove it. Just let it melt and wipe the liquid off using a microfiber cloth.

So if you want to put tempered glass on you should remove the preinstalled one. Otherwise you can get difficulties with the touch screen.