SURE!! Both of them can be used as glue!!!!
That said, I have always used good old Permatex, "Indianhead Shellac Gasket Cement".
Glue them to your valve covers so that you can pull them off w/o ripping them up.
Otherwise, glue them to both sides if you aren't going to mess w/ her later!!
The darn stuff is messy, but it works fine, imho....