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Super Member
Re: New windshield has some time of oily film
I'm not a professional so I'll leave it to you to decide the merit, or lack thereof, of my method, but nonetheless, here's what I would do.
Start by scrubbing the windshield with a terry towel/rag saturated, but not dripping, with mineral spirits. Allow the mineral spirits to dwell for a few minutes then scrub again. Finish this step by wiping with a clean terry towel. If you want to, you can use 0000 steel wool during this step - That's your call.
Then repeat the process except use Isopropyl Alcohol for this step. The Isopropyl Alcohol will evaporate much quicker than the mineral spirits so adjust your process accordingly. Regardless of whether or not you used steel wool in the previous step, do not use it for this step or beyond.
Assess the results. You may be finished at this point. If not, then follow-up with clay and/or compound and re-assess.
Obviously, you want to clean any residues following each of these steps. Use whatever method you like. For the very final step, apply a glass treatment of your choice.
If the windshield isn't clean at this point then you can either repeat any, or all, of these steps until it is clean, you can just say F it and do your best to live with it, or go back to glass shop and see if they can fix or replace it.
Good Luck.
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Super Member
Re: New windshield has some time of oily film
Alright guys thanks for all the replies.
To be honest steel wool on anything scares me. I don't think i've ever used it on anything my whole life.
Secondly, the windshield is brand new installed by the local vw dealer (we only have 1 in Dubai), even the wiper blades are genuine VW. I told them at the dealer that this problem is happening and they said they have no heard of such a thing before. Did not bother going back as its a waste of time.
I never had this problem for two years on my previous windshield and have never seen it on my previous VW nor on any other cars in the house.
I think, I will be trying one of the polishes on my glass - m205 with the orange hybrids as they are the most aggressive.
Would that work? Or should I go most aggressive with UC? I can only use what I have - I cannot order anything from AGO at this point.
Would need this done soon as its the start of winter here, which means more rain.
Thanks
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Super Member
Re: New windshield has some time of oily film
0000 steel wool on glass...with glass cleaner...is exactly what is done at the local McLaren/Porsche dealer to clean windshields. sure, dealers can be home to some of the most treacherous detailing stuff ever seen, but these guys found a fine line between common volume detailing techniques and the overkill "boutique" detailing techniques we dwell on. they did it under my watch prior to Opti-Glass installation and no issues were detected under close scrutiny.
all glass is not created equal, i will admit that. and technique/product can be a very influential combo. still, 0000 steel wool is very commonly used for this purpose.
OP, if it were me and i encountered this, i would first clean with Power Clean at full strength because that would most likely dissolve/dilute/lift any oily contamination, making sure to keep the entire area wet the entire time (misting water is fine), wash it all off, rinse VERY well then assess, then if it's still an issue, Hyper polish on a no cut/low cut pad and go over the whole thing, wipe and assess. i would also clean the wiper blades extremely well, over and over with Power Clean and an old MF, until NO black comes off.
'09 Mercedes-Benz C 63 AMG / '14 Audi Q5 3.0 S-Line / '99.5 Pathfinder SE
I DO NOT support or recommend Oakes.
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Super Member
Re: New windshield has some time of oily film
Guys you have been awesome but I must add, I can only use what I have at hand. These products are:
1. Meguiars APC (is this like powerclean?)
2. Meguairs m205, UP , Swirlx and UC
3. Sonax Nano Polish 3/6
4. Flex 3401 - hybrid pad range orange, white and black
Thats it...
I'm still new to all this - Would I have to saturate a towel in the APC and just wipe the glass by working it in?
I did use some straight up IPA 70% on my wiper blades last night and it removed extremely black stuff, and I tried the wipers again, it was definitely better but not great.
My windshield still has a film of water on it rather than sheeting/rolling off. So i feel it might just be a combination of the wiper blades AND something on the glass.
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Super Member
Re: New windshield has some time of oily film
Originally Posted by emmjaygti
Guys you have been awesome but I must add, I can only use what I have at hand. These products are:
1. Meguiars APC (is this like powerclean?)
2. Meguairs m205, UP , Swirlx and UC
3. Sonax Nano Polish 3/6
4. Flex 3401 - hybrid pad range orange, white and black
Thats it...
I'm still new to all this - Would I have to saturate a towel in the APC and just wipe the glass by working it in?
I did use some straight up IPA 70% on my wiper blades last night and it removed extremely black stuff, and I tried the wipers again, it was definitely better but not great.
My windshield still has a film of water on it rather than sheeting/rolling off. So i feel it might just be a combination of the wiper blades AND something on the glass.
yeah i'm sure you can use that APC, i just don't know a dilution that's ideal. if i recall, it's somewhat more alkaline than Power Clean so you might want to try 1:1 with water, let it dwell but don't let it dry. someone with specific experience with that APC might want to chime in.
then for the polish part, white or even black pad with UP or M205 should do the trick - that's what i'd try if the APC thing didn't do the trick. glass is very hard so you won't hurt it with that, but it should be enough to remove whatever is leftover after the APC wash.
'09 Mercedes-Benz C 63 AMG / '14 Audi Q5 3.0 S-Line / '99.5 Pathfinder SE
I DO NOT support or recommend Oakes.
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Super Member
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Super Member
Re: New windshield has some time of oily film
Originally Posted by emmjaygti
Guys you have been awesome but I must add, I can only use what I have at hand. These products are:
1. Meguiars APC (is this like powerclean?)
2. Meguairs m205, UP , Swirlx and UC
3. Sonax Nano Polish 3/6
4. Flex 3401 - hybrid pad range orange, white and black
Thats it...
I'm still new to all this - Would I have to saturate a towel in the APC and just wipe the glass by working it in?
I did use some straight up IPA 70% on my wiper blades last night and it removed extremely black stuff, and I tried the wipers again, it was definitely better but not great.
My windshield still has a film of water on it rather than sheeting/rolling off. So i feel it might just be a combination of the wiper blades AND something on the glass.
Meguiars APC at 10:1 first (that's the interior dilution) and if you must, then 4:1.
Former professional detailer. Current medical student (class of 2023)
2017 Infiniti Q60 3.0t AWD
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Super Member
Re: New windshield has some time of oily film
I went out for a drive as the streets are quite clear at this time.
I used the wiper and windshield washer fluid and it did seem a little better, with a little bit of chatter from the blades. It wiped off but still left some film on the glass but at least a 60% improvement from before.
The liquid being sprayed from the windshield nozzle jets is quite soapy, i was wondering could this be a problem? Maybe the dealer decided to put some crap in there that leaves behind a film too?
Before, I only used to add water to the washer jets and that would clean quite well.
After all this I wonder, maybe the wiper blades are just bad? We don't get bosch aerotwins here otherwise I would get those, we only get the oem vw ones from the dealer. Maybe I can try another set....a bit pricey but with rain coming up its not worth risking it.
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Super Member
Re: New windshield has some time of oily film
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Re: New windshield has some time of oily film
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