The glad wrap won't stick to the TT.

A few things to be mindful of, as already mentioned try to get some TT in under the artwork and use it as glue but be careful not to spray it too close which may cause the artwork to blow away with the blast from the TT can.

When you put the glad wrap over the TT you will only get one shot at it but try to avoid any crinkles in the glad wrap as the TT will dry with the crinkles in it as well. 

Got it, thanks very much.  iI sounds simple enough.........hopefully I don't stuff it up.