D-banger Posted 20September, 2013 Report Share Posted 20September, 2013 For some reason the 993 windscreen seems to pick up a lot of stone chips and minor scratches. Unlike what I have ever experienced on any car before. P-Cars included. Visibility can become difficult when driving into the sun, so I am at the point of doing something about it. Question is Polish or Replace? Any advice, recommendations or reports on experience would be greatly appreciated. Link to comment Share on other sites More sharing options...
Jimmy Posted 20September, 2013 Report Share Posted 20September, 2013 Don't think they can be polished out, Link to comment Share on other sites More sharing options...
wasserkuhl Posted 20September, 2013 Report Share Posted 20September, 2013 Some paint shops specialise in polishing windscreens, they use a special paste. You can have a crack at it yourself, with a product called Meguiers Scratch X. You simply apply the product, let it dry to a chalky finish and polish off. There are other glass polish products on the market that you may find at Auto-barn or similar retailers. However, results are mixed, my 356SC had a badly scratched rear window and I used scratch X on it and it all but removed the blemishes. I did the same on my Carrera Windshield as it had been peppered, and it didn't do anything. a Std 911 WIndshield, sans the demisting element is only $250 + installation, You may even have a glass allowance within your insurance policy as the windshield is defective. However your excess may exceed the cost of a new windshield, so check up. I remember pricing a demist element one for my Carrera when I had the glass out, it was $900, so I just went for a std one cos I wanted to spend that cash on WEVO porn. If, as you say, the visibility is compromised that much in direct sunlight, it would be best to replace(and it may well be something you can claim on your insurance). Also, try cleaning the inside of the windscreen, this tends to be forgotten and improves visibility a great deal! Link to comment Share on other sites More sharing options...
wasserkuhl Posted 20September, 2013 Report Share Posted 20September, 2013 Oh and JimTT has 901 Posts!!! 901 in the 901's 50th year!!!! WOO HOO!!! Link to comment Share on other sites More sharing options...
Jimmy Posted 20September, 2013 Report Share Posted 20September, 2013 Yeah Wasser, 901 post, I didn't notice my posts were that high. My insurance company covers damaged windscreen with no excess or any premium increases and there is no limit to the amount of times it happens. Link to comment Share on other sites More sharing options...
D-banger Posted 20September, 2013 Author Report Share Posted 20September, 2013 Thanks Jim/Wasser. I think I'm going to have to price things up...and have a chat to my insurer. The 993 windscreens have built in antenna so not sure how cheap this is going to work out. These are my main concerns, 1. Pay out and replace windscreen to find that is soon just as pitted (apparently the 993 windscreens are very susceptible to this) 2. Get windscreen polished and find objects are distorted or not all pitting is removed. Link to comment Share on other sites More sharing options...
oldblade Posted 20September, 2013 Report Share Posted 20September, 2013 This guy on drive clean is a gun check it out polishing a windscreen Link to comment Share on other sites More sharing options...
Chris-p Posted 20September, 2013 Report Share Posted 20September, 2013 Hi Doug, I am interested in what you do here. Mine is the same. I noticed it on the weekend as I had cleaned it and actually clayed it so it's probably the cleanest it's ever been. The 993 screens are not cheap from what I understand as you rightly say due to the concealed radio antenna. Let me know what yon decide, re polishing.... C Link to comment Share on other sites More sharing options...
T-Man Posted 20September, 2013 Report Share Posted 20September, 2013 The 993 windsceens are made of cheese. Super soft and chip really easily. If you can get the chips polished out I'll be the next in line. Not holding my breath though. Link to comment Share on other sites More sharing options...
Harvs11 Posted 20September, 2013 Report Share Posted 20September, 2013 The 993 windsceens are made of cheese. Super soft and chip really easily. If you can get the chips polished out I'll be the next in line. Not holding my breath though. This seems to be common for a lot of modern screens. Wife's BM and my Honda get a chip at the slightest little stone. On the the other hand, my SC screen seems to be bullet proof. It has copped some big hits and barely a mark. If your insurance allows, it's definitely worth getting a new one fitted. Link to comment Share on other sites More sharing options...
Jimmy Posted 20September, 2013 Report Share Posted 20September, 2013 I'm pretty sure needs to be accidental damage like a large crack for a claim. Link to comment Share on other sites More sharing options...
Russ Posted 20September, 2013 Report Share Posted 20September, 2013 I got my screen replaced under my insurance policy recently, so much better! integrated aerials are where screens get expensive apparently Link to comment Share on other sites More sharing options...
Jimmy Posted 20September, 2013 Report Share Posted 20September, 2013 I got my screen replaced under my insurance policy recently, so much better! integrated aerials are where screens get expensive apparently Was your screen cracked ? Link to comment Share on other sites More sharing options...
wasserkuhl Posted 20September, 2013 Report Share Posted 20September, 2013 An option is that you just replace with an Australian made std 911 Screen as they are the same from 1964-1997 Ditch the antenna and demist options, run a hidden antenna under the dash or in the luggage compartment and go all retro on the demist(rag and wipe) I can assure you that the cheap screen I have in my Carrera hasn't chipped or peppered and I have done alot of highway driving behind trucks, caravans and slow Kia's Link to comment Share on other sites More sharing options...
TINGY Posted 20September, 2013 Report Share Posted 20September, 2013 D-banger I have been looking into this for weeks now. There are polishing kits available to do windscreens but doubt if they would work on any chips that your fingernail gets caught on. It seems the kits are recommended for minor scratches and blemishes. There are people that specialize in polishing glass but it would probably work out similar price to buying a new windscreen. Unless you were doing up an old car that you couldn't find a replacement windscreen for its probably not an option Cerium oxide is what is used, I think it is used to polish stones. I've used scratch x on paint and plastic light lenses but never on glass, brings up light covers like brand new. Link to comment Share on other sites More sharing options...
D-banger Posted 21September, 2013 Author Report Share Posted 21September, 2013 Thanks guys for the input. For me the pitted windscreen is just wear and tear, not an insurance issue. It just seems that the 993 screen wears more quickly. Probs down to what T- man says. I'm thinking along the same lines as Stephen in that a professional polish would have to be substantially cheaper than a full replacement to make the polish worth while. I'll get some pricing on a polish and on a full replacement. If the full replacement is the way to go would their be any 993 owners interested in a group buy? Link to comment Share on other sites More sharing options...
StevepGT3 Posted 21September, 2013 Report Share Posted 21September, 2013 Thanks guys for the input. For me the pitted windscreen is just wear and tear, not an insurance issue. It just seems that the 993 screen wears more quickly. Probs down to what T- man says. I'm thinking along the same lines as Stephen in that a professional polish would have to be substantially cheaper than a full replacement to make the polish worth while. I'll get some pricing on a polish and on a full replacement. If the full replacement is the way to go would their be any 993 owners interested in a group buy? I would be interested if we could find someone that really (no bullshit mate) knows what they are doing, mine was cracked by a stone and replaced under insurance. It was done by someone that was recommended but now the rubber surround doesn't fit properly and you can see black mastic or whatever it is on the inside. It doesn't leak or creak but it is obvious that it has been replaced Link to comment Share on other sites More sharing options...
T-Man Posted 21September, 2013 Report Share Posted 21September, 2013 Can of worms for me. If the windscreen comes out then it would be a good opportunity to repair the notorious rust issue that our 993s seem to be subject to along the bottom windscreen surround. Positioning of the screen is a skill set that many installers lack. Porsche have a set of jigs designed for the 993 for front and rear placement. These jigs position the screen for height and distance forward of the frame. How many approved installers have these? I reckon none!!! My mate in Sydney had his glass removed twice because the installer didn't position it correctly on a concourse car. Link to comment Share on other sites More sharing options...
Russ Posted 21September, 2013 Report Share Posted 21September, 2013 Was your screen cracked ? I had really pitted glass, and a stonechip that was turning into a crack after the scotch night trip Link to comment Share on other sites More sharing options...
Caver Posted 23September, 2013 Report Share Posted 23September, 2013 After watching that Drive Clean video, I went and clayed my windscreen. It has certainly made a big difference. Doesn't get rid of chips but it's soooo clean and slippery! I've always wondered whether you should clay the glass or not. Link to comment Share on other sites More sharing options...
tazzieman Posted 23September, 2013 Report Share Posted 23September, 2013 I've always wondered whether you should clay the glass or not. Clay won't scratch the glass! Clay is good stuff. btw I've got a tub of cerium oxide as I intend to try and polish out the fine haze from the 944s driving lights. I'm expecting to use plenty of elbow grease as well! Link to comment Share on other sites More sharing options...
oldblade Posted 23September, 2013 Report Share Posted 23September, 2013 To get rid of scratches and pits I use this stuff http://www.ufixit.info/windscreen-repair-kit Link to comment Share on other sites More sharing options...
Flatout Posted 10October, 2013 Report Share Posted 10October, 2013 My last old car had some really bad scratch's on the rear screen & glass polish was too fine. I actually used a more abrasive metal polish, went over it a few times with that (as I already had some) and then finished with a couple of runs of glass polish to remove nay finer scratch's that the metal polish may have left. Made a fair bit of difference to what it was, although still not 100% by any means. Cheers. Link to comment Share on other sites More sharing options...
Peter M Posted 15October, 2013 Report Share Posted 15October, 2013 FYI - Windscreens O'Brien quoted me $357 today for a new windscreen fitted. That's based on reusing the the existing seal and a windscreen without an embedded aerial. Link to comment Share on other sites More sharing options...
Russ Posted 15October, 2013 Report Share Posted 15October, 2013 I'd want a new seal everytime personally Link to comment Share on other sites More sharing options...
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