[d s windowcleaning]

Also you have no way of knowing your dilution rate just by chucking a bit in the tank every few tanfulls gives you no idea of how strong your solution is. If it's floating on the top and not evaporating anywhere then your solution will get stronger over the months. The only way to accurately measure what your doing would be to measure the specific gravity with a hydrometer at the point where the water contacts the glass before evaporation - you'll probably find the reading so small that your using pure water anyway.

Isopropanol by the way is excellent stuff!
 Appearance: clear. Flash Point: 12 deg C.
Warning! Flammable liquid. May cause skin irritation. Hygroscopic. May cause central nervous system depression. May cause kidney damage. May form explosive peroxides. May cause reproductive effects based upon animal studies. May cause severe eye irritation and possible injury. Causes digestive and respiratory tract irritation. Target Organs: Kidneys, central nervous system.

Potential Health Effects


Eye:
Produces irritation, characterized by a burning sensation, redness, tearing, inflammation, and possible corneal injury.
Skin:
May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. Prolonged and/or repeated contact may cause defatting of the skin and dermatitis. May cause irritation with pain and stinging, especially if the skin is abraded.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause kidney damage. May cause central nervous system depression, characterized by excitement, followed by headache, dizziness, drowsiness, and nausea. Advanced stages may cause collapse, unconsciousness, coma and possible death due to respiratory failure.
Inhalation:
Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. Inhalation of vapor may cause respiratory tract irritation. May cause narcotic effects.
Chronic:
Prolonged or repeated skin contact may cause defatting and dermatitis. May cause allergic skin reaction in some individuals.

djw have you ever used ipa  i dont know where you got you info from but not one mention that this occurs when cleaning windows .... as for the skin taattooist use this for a surgical spray  during and after applying a taattoo if youve never tryed ipa dont try and fault it ,, its great stuff.

[frames to panes]

Yes i've used ipa for thirty three years every day but not for cleaning windows. I think it very unlikely that the same stuff would be spread on your skin. The information came from an internet search - it's not made up. I'm not saying it doesn't work i'm just pointing out that it's unlikely to make any difference in my opinion due to no-one knowing what rate they are using it at, it's so unscientific to glug a bit in your tank. Windows are gleaming with just pure water so why add anything else? My opinion is that the dilution rate is so low that you probably couldn't even measure it at the point of contact. It's just my opinion and for those who use it well that's up to you i'm not saying your right or wrong.

[L.J.Thorpe]

djw
we both know all about ipa
i have used it at these low dilution rates abd it was enough to stop system icing up
i also noticed a difference in how the water behaved on glass
marcus norton also made same conclusions at similar dilutions
neither of us was expecting anything
the first lot of ipa was free so we had no reason to justify its worth
it stopped the water freezing in the pipes
it seemed to make the water behave different on the glass
as for safety ......at 250ml in 500ltrs,i would happily down a pint and not worry
surely you had the bloke who put a "shot" in his coffee at your place

[vivaro 013]

As the water hits the glass it looks for a split second like it has detergent in it,almost straight away it dissapears.All the time your brushing it will bubble up,and then when you rinse the bubbles will go again and then the window will dry as normal,you only get bubbles when brushing and rinsing theres no bubbles during the drying process.

were do you buy the above if you dont mind me asking

[NWH]

Google IPA.

[d s windowcleaning]

As the water hits the glass it looks for a split second like it has detergent in it,almost straight away it dissapears.All the time your brushing it will bubble up,and then when you rinse the bubbles will go again and then the window will dry as normal,you only get bubbles when brushing and rinsing theres no bubbles during the drying process.

were do you buy the above if you dont mind me asking

if you just want to try some buy it from maplins its £10.99

[frames to panes]

surely you had the bloke who put a "shot" in his coffee at your place

  not that i know of! 

[frames to panes]

That's the point i'm trying to make - the dilution rate is SO low that i would doubt any benefits could be observed, so miniscule that the beads of water would have their original surface tension. I've got a "borrowed" bottle in the garage i might try one day.
I would like to see a proper test done by a sensible supplier/cleaner or whatever under a controlled environment though.

[L.J.Thorpe]

That's the point i'm trying to make - the dilution rate is SO low that i would doubt any benefits could be observed, so miniscule that the beads of water would have their original surface tension. I've got a "borrowed" bottle in the garage i might try one day.
I would like to see a proper test done by a sensible supplier/cleaner or whatever under a controlled environment though.

if you have some just try it
that would be a good benchmark
you are not expecting any difference
you have no reason to justify the expense
give it a go and say what you see
maybe the only benefits ARE in cold weather
go for it mate,thenjust give an honest opinion
 cheer

[NWH]

I`m no fool and if it didn`t work i would bin it,i don`t know how someone can comment when they havn`t used it for WC. : : : : :

[d s windowcleaning]

£30 for 25 ltrs www.specialised-areosols.co.uk

[frames to panes]

I`m no fool and if it didn`t work i would bin it,i don`t know how someone can comment when they havn`t used it for WC. : : : : :

Tell me NWH what's the alcohol doing, what exactly is it do you think that improves the wash?

[NWH]

I`m no fool and if it didn`t work i would bin it,i don`t know how someone can comment when they havn`t used it for WC. : : : : :

Tell me NWH what's the alcohol doing, what exactly is it do you think that improves the wash?

As you know it`s a wetting agent and alcohol evaporates almost straight away on the glass,when mixed with the water it seems to be having the same effect by that i mean it seems to dry quicker than with just pure water.There is definitly a cleaner look to the glass when using it in my opinion,and like i`ve said on problem windows the results are improved,it might have something to do with the fact the waters not hanging around as long ie dries quicker.

[frames to panes]

http://www.engineeringtoolbox.com/ispropanol-water-d_988.html

Found this whilst looking for information - if you want to use it as an antifreeze then it looks to me as if you want a mix of around ten percent? If so i would need six litres of the stuff in my tank.

[windowwashers]

I`m no fool and if it didn`t work i would bin it,i don`t know how someone can comment when they havn`t used it for WC. : : : : :

Tell me NWH what's the alcohol doing, what exactly is it do you think that improves the wash?

As you know it`s a wetting agent and alcohol evaporates almost straight away on the glass,when mixed with the water it seems to be having the same effect by that i mean it seems to dry quicker than with just pure water.There is definitly a cleaner look to the glass when using it in my opinion,and like i`ve said on problem windows the results are improved,it might have something to do with the fact the waters not hanging around as long ie dries quicker.

you cant get a cleaner finish than pure water that is obvious, from what you are saying it most leave some sort of polished film on the glass that reflects better than glass logical think, pure water nothing in cleaning glass right, means nothing on glass leaving natual finish. add IPA has to leave unatural finish.

my question is how it makes it look cleaner than some thing that is natural ??

NWH not knocking there in anyway as I think it would work on drying time, but this is puzzling me

Ian

[Highrise]

We use 1000 lts of water aday, How much Isopropanal would I need to use and how often....

[groundhog]

I was thinking of buying some, but have come to the conclusion that it is an unessasary waste of money! and potentially harmful as well. 

[Clive McDonald]

You are not supposed to drink it Groundhog, it is to be mixed in with the pure water to reduce surface tension( beading), and to increase the, erm, solubility.

[groundhog]

You are not supposed to drink it Groundhog, it is to be mixed in with the pure water to reduce surface tension( beading), and to increase the, erm, solubility.

What about when it comes into contact with your skin on a daily basis? Or if you splash some in your eyes? I won't be wasting my money thankyou!!

[Ian Curtis]

Wait til you breathe some in.