Kia Windscreen

[browndmb]

When raining and wipers going there is a distinct pattern appears on the glass. It is a greasy pattern which makes it very difficult to see through and remains there even with wiper was spray. On returning home have tried to was ht window but spending quite some to#ime am unable to clean it properly. This onis only when raining and using the wipers.
Any suggestions as to what this is and how to remove it. Thanks

[donny48]

Have you tried cleaning the wiper blades ?

[browndmb]

Yes have done that to no difference with the pattern

[douglas9401]

This often happens, especially after a fairly dry spell of weather.
I've found that using a plastic netting type scourer that you get from the pound shop on a wet screen followed by drying with kitchen roll does the job.
Don't use the scourers with foam and an abrasive side, not even the non-scratch type.

[chiaroscuro]

Clean the blades with white vinegar and then use washers - repeat as necessary.

[HansUrbancka]

Wash the Windscreen and when dry give it a wipe over with Methylated Spirit.

It could be that a deposit is coming off the Wiper Blades which are slowly Perishing and need to be replaced.

Hans.

[bhg481]

I agree with Hans. I've had wiper blades which look perfectly OK but the edge isn't as smooth as it looks and leaves smears. It's certainly worth trying new blades after you've tried the windscreen cleaning tips.

[TWR]

Whoever had the car prior to yourself has used Car Polish on the screen, fairy Liquid & a Scour pad ( NOT A BRILO) Pour the Fairy on the screen then clean, on completion, wash down, that should cure it.

[HansUrbancka]

Forget any suggestions about 'Scour Pads' ( ref:- douglas9401 & TWR )
Do Not use anything abrasive...not even the smoothest of paste, such as Ceramic Oven Hot-plate Cleaner.

Hans.

[TWR]

Hans, I have been Car valeting on a spare time basis & never had trouble with the Green Kitchen Scouring pads, they are not that abrasive to do damage otherwise I would have had numerous customers come back to me, & none have, I could not afford that to happen, I've had it in my time of valeting someone that uses car polish on the screen & it looks well and sparkling until it rains, that's when you have trouble with screen Grease patterns, I will still stand what I've said.

[gingejbee]

...in fact, many professional car detailers use steel wool for cleaning stubborn windscreens....BUT it has to be the VERY FINEST grade you can get, 0000 grade. I have some of this which I've used for a different purpose...it just feels like butch cotton wool!

[HansUrbancka]

@TWR... I guess it depends on the quality of the Scourer. Some are very smooth and others are very course. Hence the reason to avoid using Green pads/cloths; some of which can certainly scratch glass.

@gingejbee... I always have available 0000 grade wire wool for polishing wood and metal. However, I would be timid of using it on a car's windscreen, although I have used it on the window of my shed which had become splashed with Cuprinol wood preservative and it worked a treat.

Hans.

[TWR]

Hi Hans, I can assure you & I've done a lot of Expensive cars Eg/ BMW, Mercs, when I packed up the Driving I went valeting full time for a while, I've had 3 containers of Milk spills, Milk Hidden in vents, you name I think I've had it, the pad I refer to is the Duel one, not sure what you call them, one side soft / hard but not abrasive just enough to clear the Car Polish Wax that's been put on the screen.

[stocksman]

Do not use fairy or any other washing up liquid. When it is made it is very thin, like water, then they add a large amount of salt to make it go thick. And we all know what happens with salt on bodywork, don't we? Even if you think you've washed it all away there will be some in places you can't get to and 'hello rusty'.