News:
You will find most glass is made thinner now than original glass was .
If the glass is thinner, you need a thicker tape so that the outer portion of the glass is in the correct location. I don't know how much thinner it is though. That's why I had a glass company install mine. They refused to use butyl tape. They used a urithane and manually set the depth so the trim would fit.
I just purchased a nice windshield form a local glass guy , about $275.00 with a supply of butyl rubber for install, it is thinner than stock , now I have heard that Butyl rubber is considered unsafe ,perhaps due to it not sticking and the windshield can fall ,out I have to do some research and see what the real deal is
We use butyl tape to seal sections of ductwork together on commercial projects and man that stuff sticks as long as the surface is clean and dry. The stuff we use is a grey color not black like the glass guys use. Every once in a while someone will take a strip of that stuff and lay it in a car door and slam it shut you practically need a crow bar to open the door after that! This is one way I have researched the stuff!