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post #1 of 5 (permalink) Old 03-23-2008, 11:19 AM Thread Starter
Join Date: Mar 2008
Posts: 12
windsheild changing

i got a couple cracks across my windsheild,
besides the new one it self what tools/materials would i need to change it?

and anyone have any tips or suggestions for me?
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post #2 of 5 (permalink) Old 03-23-2008, 11:39 AM
Join Date: Jan 2008
Posts: 54
you can get a tool to make it easy at princess auto, I don't know if you have an outlet back east, but they do have a mail-order service out of winnipeg I's less than $20 a well worth it
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post #3 of 5 (permalink) Old 03-23-2008, 11:46 AM Thread Starter
Join Date: Mar 2008
Posts: 12
yep we got a princess auto over here
so all i need is this tool to remove it? im assuming its like some sort a knife or hook?

and what about installing, what do i need?
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post #4 of 5 (permalink) Old 03-23-2008, 12:06 PM
Join Date: Jan 2008
Posts: 54
actually the tool is to install, to remove you just kick it out from the inside, once thats all done and the seal is back in place you set the winshield into the groove on bottom and run the tool around...there's people that recommend proffessional install only, but I've done mine 'cause I wanted to paint the area under the seal
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post #5 of 5 (permalink) Old 03-23-2008, 12:12 PM
Join Date: Jan 2008
Posts: 54
FORGOT to ask how you're old one was's for newer models:Some of the newer vehicles used butyl rubber tape to seal the windshield. Butyl did a good job of sealing, but installing the glass was a little trickier. The old windshield was "cut out" using sharp knife blades and saws to cut through the butyl. Then all the remaining butyl in the car's frame was cleaned out with a scraper and a new strip of butyl was rolled into place on the frame. Rubber blocks at the base of the glass positioned the glass and the new windshield was set in place. Set it in the wrong place and the butyl stuck to the glass firmly. Then we had to try to lift it off again, install new butyl and try again. Making a mistake wasted time, so we were careful setting them in place. Finally, the mouldings were reinstalled around the windshield, as these were what really kept the glass in place.

My truck's windshield is typical of what we find on all modern cars. Instead of soft butyl rubber to seal the windshield, now a Urethane adhesive is used to bond the glass to the body of the vehicle. Glass has now become a structural member of the vehicle. Occupant safety, vehicle handling, and even the reduction of noise and vibrations all depend upon the correct bonding of the glass.

Bonded glass is still cut out of the vehicle's body just as it was when butyl was used, but now the job is much more difficult; Urethane adhesive is very tough. After the glass is removed, the window frame is cleaned up and a primer applied to help the adhesive bond better to the body. The adhesive is applied with a caulking gun, just as you might when resealing a bathtub. Then the glass is set in place. Better not make a mistake here - touch the glass to adhesive and it is stuck. You will probably need another windshield if you have positioned it incorrectly. There are few second chances!

New glass often comes complete with mouldings and edgings already bonded to the glass. The vehicle now needs to sit in a warm area for a few hours before it is driven because urethane adhesive takes a few hours to cure. Sometimes the installer will use duct tape to hold the glass in position while the adhesive cures.

Have you noticed that all the vehicles now come with glass that has fancy black outlines around the border of the glass? This isn't just for show, although some manufacturers take advantage of the blacked out effect to enhance the vehicle's looks. The black border is actually there to protect the urethane adhesive. Ultraviolet light (sunlight) will damage the adhesive over time, so the solution was to simply block out the sunlight with black.

Finally, windshields seem to pit more quickly that they did a few decades ago. This happens because the glass is softer, making it less likely to shatter but more prone to pitting. If it becomes difficult to see when driving into the sun, it is time to think about installing a new windshield, but this is one job best left to someone with the experience and tools to do it right.
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