Windscreen wash leaves soapy film?
#1
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When I use the wipers it takes a couple of seconds for the wet film to clear. When the wipers run contiuously the film is there all the tine. None of my other cars have this problem. Is the glass in heated screens different? I have cleaned everything thorougly and all is well until first wash. I have tried two brands of washer fluid. It is quite maddening.
#2
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Vinegar, ammonia and lemon juice work as does old newspaper ( really). Stainless steel wool for stubborn dirt.
North Americans have access to two excellent degreasing products for window glass. Bon Ami, also sold in GM dealerships as Auto Glass Cleaner, and Windex which is vinegar and ammonia in water. Best results are achieved by degreasing with Bon Ami and then cleaning the Bon Ami residue off with Windex.
Windshield washer fluid with"RainX" brand additive should be avoided. This stuff puts a glycerine residue on the glass to cause the rain to bead up and, in theory, blow off. This is largely total BS. Even when it works as advertised the residue builds up and the wipers eventually streak.
Jaguar factory screen wash is not good where road dirt may include winter salt and oil residues. Calcium chloride "road salt" is particularly hard to clean off.
North Americans have access to two excellent degreasing products for window glass. Bon Ami, also sold in GM dealerships as Auto Glass Cleaner, and Windex which is vinegar and ammonia in water. Best results are achieved by degreasing with Bon Ami and then cleaning the Bon Ami residue off with Windex.
Windshield washer fluid with"RainX" brand additive should be avoided. This stuff puts a glycerine residue on the glass to cause the rain to bead up and, in theory, blow off. This is largely total BS. Even when it works as advertised the residue builds up and the wipers eventually streak.
Jaguar factory screen wash is not good where road dirt may include winter salt and oil residues. Calcium chloride "road salt" is particularly hard to clean off.
#6
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Or try clay bar on your windshield if you have some around. It's amazing the junk that comes off your windshield onto the clay bar. Afterward, I use paint cleaner and then synthetic wax. Basically, whatever I do to the paint when I'm polishing the car, I do to the windshield. And my wipers glide across the windshield like magic.
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Vector (10-20-2012)
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Seems some of my posts disappear into bit heaven ????
OK, new development, when the car was in for repairs after being dinged by an errant Merc the painters didn't cover everything properly so the screen got clear lacquer mist on it which in turn was taken off the day after with thinner and paper, finally cloth with thinner.
Question is can vigorous rubbing with thinner and paper damage some kind of treatment of the glass? Alternatively is it possible that a very thin residue is left on the screen only showing up when soap breaks the surface tension of the water on the screen?
OK, new development, when the car was in for repairs after being dinged by an errant Merc the painters didn't cover everything properly so the screen got clear lacquer mist on it which in turn was taken off the day after with thinner and paper, finally cloth with thinner.
Question is can vigorous rubbing with thinner and paper damage some kind of treatment of the glass? Alternatively is it possible that a very thin residue is left on the screen only showing up when soap breaks the surface tension of the water on the screen?
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#16
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I mean by rubbing on it. Quartz crystal can be an issue and high pressure sandblasting will certainly etch glass which is essentially what rock chipping is when the rocks are small enough to qualify as sand. But, generally speaking only diamond is hard enough to actually scratch glass by hand pressure alone.
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