Would it be okay to remove the invisible shield after it's been drying for 4 hours? It seems there are lot's of bubbles on it but I've ran out of the "special solution" that you're supposed to spray on it.
What you can do is make "wet water" (as it's known in hobbyist circles )PLEASE NOTE: This solution is offered for your convenience and is NOT required for correct application.
I used this method on my S710a, and it worked perfectly.Make a solution of soapy water. Mix 5 to 10 ounces of water with one small drop of liquid baby shampoo or liquid dish soap. Please note that you will NOT be needing all of this water. In fact, you will need hardly any of it! It activates the adhesive and makes the film slippery when applied.