would you really risk it?
Please don't use standard silicone or sikaflex. If you feel the need to do it your self order some pr1422 or ps 870 (which has chromate in it to prevent corrosion).
I know it is expensive but maybe there is a maint facility close by that has some expired P.R. which would be fine and a lot better than using sikaflex or any other sellys product.
PS870 is about $75 a tube which when put down right will prevent corrosion around he window and also prevent water getting in and corroding the floor.
It will be money well spent in the long run and since it will be right there in the eyes of casa if they ramp you it will save you a lot of embarrassment.