I have WD-40 - what's wrong with it? I'll have to buy silcone spray....
http://www.wd40.co.uk/Files/pdf/wd-40-2000-uses.pdf
I'm sure in this list sticky door handles are mentioned!
http://www.wd40specialist.co.uk/the-...one-lubricant/
Don't know the advantage of this just for sticky handles.