I have a Zagg shield on my screen, I even messed up putting it on, and if you look at it in a certain angle , you can see little wrinkles. Zagg sent me another one. You are suppose to went both sides of the shield, I only did one side. Oh well, at first I was worried about the little bubbles I couldn't get out. But after a couple days, the went away. It felt kind of funny for a couple more days, now I can barely tell it is on it now. Some day I will remove it and install the other one the correct way, but not too worried about it, I like it and it is the first shield I have ever liked
That's for the wet apply models. They make dry apply models that don't require you to wet them to attach them. I've bought both versions for various devices over the years, and never had issues, and I mean somewhere around the neighborhood of about 50-60 different devices I've applied them to.
With the 1520 models both wet and dry each one I have received has had an issue of some kind.
A couple of them have wrinkled, and it can actually be felt...but they weren't wrinkled when applied...or for several days after.
A couple of them have yellowed in certain spots and then started to peel up in those areas.
Another started having random tiny spots where it was pulling away from the surface of the screen...almost like there were small bits of dust...but after removal and inspection it was totally clean, both the screen and the adhesive.
The one I have on right now (that I'm grudgingly not replacing) has a couple lines that are perfectly straight that looks almost like the adhesive wasn't applied properly when they made it. I thought it was a screen issue at first until I very carefully peeled back and checked.
I would have thought it might have been a batch issue because of a couple of them were bought from AT&T (as I like to keep backups around) but even the replacements that ZAGG sent me had similar issues.
Believe me when I say I love ZAGG products and am going to continue using them for most of my stuff...but I really wish I could find something else for the 1520.