Rear window sealer?

What kind of sealant do you guys use on your rear windshield and how do you seal it on the bottom where it meets with the trunk? Prior to removing my vinyl top I had water leaking in from the bottom corners. I just finished welding all the holes so there shouldn't be any more water leaking trough. I just want to make sure I seal it right cause everything in my trunk gets wet.

 

From the factory, it had two sided foam tape across the bottom, about 1/2" wide.

 

So can I scrape it off and apply new one?Could I find some at my local auto parts store?

 

So do I use two sided foam tape??or what works best??

 

It's called Window Bedding Tape. Get it at you local Auto Glass Shop

 

Ok and just apply it on the bottom of the windshield? Is there any other type of sealants that I want to use once the window is installed? Do I repeat the process with the front windshield as well?