Replacing a g body windshield

[Csilvy2000]

Thanks for all the input. I've had new windshields in old cars before. The difference is night and day. Great Website!

 

[Clone TIE Pilot]

I removed my old cracked windshield myself so I could clean up some minor surface frame rust. The glass shop that installed the new one didn't have a problem with me cleaning up and repainting my windshield frame since I used epoxy primer, the good stuff. Most shops are willing to remove the old glass on a rusty frame, but you must repair the rust or they will refuse to install new glass. Burtyl tape is only for the quarter windows on G bodies, front and rear glass needs urethane.

 

[Longroof79]

I realize urethane is the way to go. But did the glass shop use any type of tape as a dam so that the urethane caulk didn't ooze out into the car? I noticed when I removed my windshield, there was what appeared to be a foam strip which I assume was some type of dam for the caulk. Can anyone elaborate on that ?

 

[pontiacgp]

they didn't when they replaced mine, they just put a bead on the window's edge and put the window in place..

 

[Longroof79]

Thanks Steve,
I suppose some shops have their own methods of how they install glass. Most use a similar method.
So in your case, the installer actually ran a bead on the glass itself, rather than on the frame. And again, everyone has a method of what works for them.

 

[pontiacgp]

I mean on the frame edge for the window, sorry, still on my first coffee.. 8)

 

[tc1959]

Thanks Steve,
I suppose some shops have their own methods of how they install glass. Most use a similar method.
So in your case, the installer actually ran a bead on the glass itself, rather than on the frame. And again, everyone has a method of what works for them.

They apply a V shaped bead of urethane about 5/8 thick to the glass after they clean and primer the edge surface.
The special tip on the tube allows for just enough sealer to be applied so you should not get any running out into the car.

 

[Longroof79]

Thanks Paul.
I've learned something new today. I always wondered how they were able to place a somewhat even bead of caulk to the surface.

 

[robert56]

I paid $215 for a new windshield including installation last year. Let them install it. I tried to install the back glass myself to save the $60 they wanted to do it at the same time. Turns out the 3M urethane windsheild sealant is so thick that you have to have forearms like a gorilla to get it to come out using a manual caulking gun and by the time you lay a complete bead around the opening, the beginning of the bead has started to cure. Guess that's why the professional installer had an electric caulk gun...