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With winter coming on, does anyone know of an anti-mist product that works well on the inside's of windows. I have tried Holts and Rain-ex in the past and they are *@~#£$* useless.
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Aircon does it for me.
Anyone got any other suggestions? My experience of the ones you mention was less than great.
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A few drops of neat washing-up liquid on a cloth does a surprisingly good job.
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A few drops of neat washing-up liquid on a cloth does a surprisingly good job.
Yep, I agree, used to use it on the inside of my visor on my motorbike helmet.
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Or, believe it or not, half a potato wiped across the appropriate area works too.
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I would say Aircon, too, but it typically only works down to 4 deg C, or so. Below that, you get more misting up, not less!
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If you visit a motorcycle shop you can get demist sprays for the inside of visors. You may need to re-apply after a week or so but it could be worth a try? The rain-x that you mention is for the outside of windows and doesn't stop any misting up.
Gareth
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There's 2 forms of Rain-X.
One for the outside, which is brilliant. You hardy need to use wipers...
The other, for the inside is Rain-X Anti Fog. Used to use it, but found that sometimes the fogging was worse....
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One thing which can cause misting on the inside of a window, is the use of de-icer on the outside.
How so?
Well, as you spray the de-icer on the frost, what it does is reduces the freezing point of the frost by changing it's composition from water to alcohol and water. This has a lower freezing point, and so the change of enthalpy takes heat energy from the windscreen (lowering it's temperature) in order to change state from a solid (ice) to a liquid.
The windscreen that was maybe at -1?c is now at -?17c and as soon as you sit in the car, the condensation starts to build up, you give a flick of the wipers to clear the melted slush, and the winscreen still well below freezing, starts to quickly ice up on the outside again too.
If you don't believe this, get a glass of watter and crushed ice, stir it around and take the temperature, it should be 0?c, now andd a handful of salt and resume stirring, now monitor the temperature, and you'll see it go down as low as -20?c, and ice will form on the outside of the glass.
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In a similar vein: Get a cup of cold water and an identically sized cup of boiling water, and put them both in the deep freeze.
Which freezes first?
Yup. The boiling one, I think due to latent heat of vaporization. (please correct me if wrong. This was learned a long time ago!)
Another reason not to pour boiling water on your frozen windscreen, let alone for reasons of thermal shock to the glass.
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As long as you're at home, or near a hot tap, a jug of warm water poured slowly over the screen works well. There are those who will caution against it (as in a long thread in the old Back Room) but I have never yet damaged a screen this way, and I have used hotter water than intended some times!
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Illegitimi non carborundum!
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warm water poured slowly over the screen works :
Me too. Used it for years. No problem.
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As long as you're at home, or near a hot tap, a jug of warm water poured slowly over the screen works well.
The originator of this thread asked for a product to prevent the inside of the screen from misting up, not the outside.
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And if your windscreen is warm, it won't mist up, so there is no need for a product.
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Electrically heated windscreen ~ available on some Ford models.
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L'escargot by name, but not by nature.
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Get a £10 fan heater and a 230V extension cable. Run it inside the car 10mins before you want to set off. No mist and no frost on the glass.
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.. Get a £10 fan heater and a 230V extension cable. Run it inside the car 10mins before you want to set off. No mist and no frost on the glass. >>
Ditto. Good Engineering advice. I should add another benefit is that you get to drive in a nice warm car!
fitz: you may wiah to check if there is some water leakage into your cabin, which may be the cause of excesive misting.
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Get a £10 fan heater and a 230V extension cable. Run it inside the car 10mins before you want to set off. No mist and no frost on the glass.
Good idea. You can even go one better with a heater having an adjustable thermostat.
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L'escargot by name, but not by nature.
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Yes, I keep my trusty fan heater at the ready at this time of year - I keep one car in the garage, but the other two stand on the driveway...
I've spent time in the US and Canada - over there they have 'block heaters' (a small heating element that fits into the engine block and pre-warms it). There are also cooling system heaters with circulating pumps (Kenlowe do a similar gadget for the UK) and all manner of other pre-heating devices. I even saw remote-control car-starting devices - you fire-up the car from a keyfob whilst eating breakfast and by the time you go out to it its nice and warm. The heater output of Canadian-market cars is volcanic!
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Get a £10 fan heater and a 230V extension cable. Run it inside the car 10mins before you want to set off. No mist and no frost on the glass.
You can actually buy 12v fan heaters that sit on the dash and plug into your cig lighter socket. I got one off Ebay last year for the daughter's metro it takes a little time to warm up but works and you can swivel it round to keep you warm until the engine warms up too.
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