hi guys, we have double glazed (upvc) windows etc, the windows have on them a single upvc " bar" that goes across the centre of the windows giving it a look of 2 seperate windows...now my problem is these "bars" have started to fall off occasionally..i have tried every kind of adhesive & dbl sided tapes i can think of to stick them back on but they come off again after a short while..having looked at the bars they seem to have some kind of adhesive white tape on them which makes them adhere exceptionally well to the glass, so my question really is does anyone have any idea what the tape is called ? where i can get some ? or any other advice to stick the bars back on so as they stay pretty permanent, many many thanks in advance