pitted windshield

[alexandervdr]

My 1986 windshield has hundreds of small pits. Not visible most of the time, but when going against the sun it does show and blurs view somewhat.
Polishing is an option, but does it really work here?

[walt]

Just yesterday started buffing my windshield with cerium oxide to remove some scuffs. It's a very slow process even for light scuffs. I think with pitting you would be far better off to replace it. I've replaced windshields twice in the past and it's not difficult.

[Geronimo '74]

Alexander,

I'm in the same boat as you, original 1986 windshield, lots of pitting and scarring.
Easiest fix is a brand new windshield, good for another 35 years.

[alexandervdr]

2 post replies an I am already convinced!
I did install windscreens before on another vintage car, quite a pita but that was a 60ies car (corvette C2) where build quality and tolerances were what they were, definitely not as good as a 86 car, and hopefully Porsche does even better ;-)

[MBAtarga]

I think most recommend the use of the URO replacement part - as the fit for the more recent redesigned part has more "meat" and extends further at the top corners than the seal from Porsche. (Do a search on this forum for more info.)

[creaturecat]

mine too.
i tried a clay bar - it did improve the outlook, somewhat.
YMMV.

[NY65912]

I tried buffing my windshield on my Q5 with cerium oxide to remove some scuffs, it did not turn out very well.

I replaced the windshield. I suspect the same would happen to you.

I was told that German glass is harder than other glass and that is why it has a tendency to pit easier than other glass. It was true on my MB, Audi and my P cars.

Good Luck

[fizeus]

cerum oxide is not sufficient. you also have to use a rayon pad with a rotary polisher.
it requre patience and time... just keep in mind to go slowly (do not exceed the 950 rpms on the polisher) doing one piece at time, have some spray water to lubricate the cerum oxide and make sure to not overheat the glass (water helps a lot)...
i fully restored some glasses worst than your....

also.... glasses can also be sanded... in the same exact way (ultra thin sanding discs and a lot of water)... and then finished with cerum oxide and rayon pads

[Geronimo '74]

Sounds timeconsuming.
And expensive, if you're not willing to do it yourself.

[fizeus]

more timeconsuming than expensive.

I do not know if it's worth for an 1986 windshield (it depends on the car status) ... but it's the only way to restore an old original "SIGLA" glass.

[safe]

Originally Posted by MBAtarga

I think most recommend the use of the URO replacement part - as the fit for the more recent redesigned part has more "meat" and extends further at the top corners than the seal from Porsche. (Do a search on this forum for more info.)

I was going to ask what seal to get, I'm replacing my windshield this winter (planing anyway, just as last winter .
So, the URO is the one to get!

How about the rear targa rubber anyone, URO, Porsche or something else?