I plan on buying case such as gelli case from case-mate but from ebay and I am concerned about the exposed area around the trackball.

I like skins such as BSE and the similar cover that area but I aint keen on using liquids when applying them. Furthermore I currently reside in Australia so shipping from the US will take too long.

Thus I am considering buying an iphone screen protector from a local store and cutting out the shape that matches the exposed area around the trackball. My main concern is, will the adhesive on a screen protector strip the paint/coating on material around the trackball?