Windows
On my S2, the owners info. says to use a the best grade of silicone you can get. Apply liberally, masking off other areas as much as possible. Says that you put on excessive amounts, then clean up all that is squeezed out after the window is set. Would assume that yours would be the same process. I don't know about using any of the urethane stuff, like 5200. Think if it was me I wouldn't use anything like that. Might need to remove one at some time.