[pure clean2o]

Hi
Went to price up new job to day
Plasters have plastered a wall over the glass they have cleaned
The glass three times but can not get water spots off .
The plaster is a self coured plaster. I think it could be k render not sure.
It comes from Germany.
Any answers as to how to clean it.
Only found out about the plasters after I had priced the job
So will have to go back and reprice.
Thanks

[Pope vader]

is it an external glass,  had a made who was a plaster and he had this germany stuff and it is murder to get off

[pure clean2o]

External glass.
No plaster left on glass.
Just lots of water marks that don't come off.

[rosskesava]

Try using patio cleaner.

Put on rubber gloves as it's an acid.
Wet the area around the window.
Wet a sponge.
Pour on patio cleaner slowly untill it drips out the sponge once or twice.
Wipe over window a few times.
Make sure no runs go down wall etc.
Use lots of water to wash off window.

Don't get any splashes etc onto any metal, i.e. door handles, etc. It'll discolour permantly.

Cheers

[pure clean2o]

Any one help please?

[Pope vader]

have you tried tradding it first

[pure clean2o]

Yes the spots are still there.

[john the cleaner]

ok try wetting the window with trad mop and fairy liquid laeve a while wet again then go over it with a green scourer like you use for washing pots  then wet again and sgueegee off may need a few goes but its always worked for me with egg plant sap ect worth a try mate good luck john

[rosskesava]

Any one help please?

Why do you think I posted the stuff about using patio cleaner?  Because patio cleaner is an a-c-i-d....... 

[stuart mc]

as ross says, the spots are alkaline based so an acid is required

[james51174]

not sure i would use a scourer.....

all i do is try a razor....if that doesnt work i just tell them there is nothing in my powers that i can do about it...but that it may wear off in time

[rosskesava]

not sure i would use a scourer.....

all i do is try a razor....if that doesnt work i just tell them there is nothing in my powers that i can do about it...but that it may wear off in time

This is getting quite funny.

I can post what I want because what I post is invisible.

Yes.... try a razor. Brilliant.

Have you maybe wondered why cleaning company's sell (expensive) branded acid type cleaners to remove water stains, mineral deposits and like. It's obviously got nothing to do with the fact it works?

As Stu says, acid and alkalines.

Also, how is a water stain/mark/mineral deposit going to 'wear off'? What's going to happen on that paine of glass to 'wear it off'? Maybe ants with mini hobnail boots dancing the cha cha? Spiders with abrasive feet? Wasps armed with a bic razor?

 

[stuart mc]

not sure i would use a scourer.....

all i do is try a razor....if that doesnt work i just tell them there is nothing in my powers that i can do about it...but that it may wear off in time

This is getting quite funny.

I can post what I want because what I post is invisible.

Yes.... try a razor. Brilliant.

Have you maybe wondered why cleaning company's sell (expensive) branded acid type cleaners to remove water stains, mineral deposits and like. It's obviously got nothing to the fact it works.

As Stu says, acid and alkalines.

Also, how is a water stain/mark/mineral deposit going to 'wear off'? What's going to happen on that paine of glass to 'wear it off'? Maybe ants with mini hobnail boots dancing the cha cha? Spiders with abrasive feet? Wasps armed with a bic razor?

 

[rosskesava]

Sorry to take the p..., but egg plant sap?

I went around to Mrs Jone's houses and while discussing cleaning her windows she mentioned that she had a problem with egg plant sap. I said to not worry Mrs Jones, egg plant sap can be a real problem. We in the window cleaning industry have experience of such problems and I can remove more egg plant sap than the egg plant can sap at your windows. She was so relieved when I showed her my special egg plant sap remover tools that she gave me a cup of tea. I got to work straight away and before even my tea was drunk, all the egg plant sap was removed in a jiffy.

I honestly mean no offense but it just read funny about 'egg plant sap'.

[stuart mc]

ok to put it simple likes, plaster is full of lime. lime is an alkaline so an acid solution is needed to remove it

ok here are some suggestions, bathroom lime scale remover, patio cleaner as ross suggested, vinegar, MDR, or any other based acid, fleck me try a lemon or something anything with acid in it

[pure clean2o]

I am not to keen on using acid  as there is quite
a lot of metal around the windows.
Also the windows are the curtain wall to a stairway
That are three floors high with no access to get a ladder
  into the court yard
So can not blade the windows as my arms are to short

[bad trippy]

not sure i would use a scourer.....

all i do is try a razor....if that doesnt work i just tell them there is nothing in my powers that i can do about it...but that it may wear off in time

This is getting quite funny.

I can post what I want because what I post is invisible.

Yes.... try a razor. Brilliant.

Have you maybe wondered why cleaning company's sell (expensive) branded acid type cleaners to remove water stains, mineral deposits and like. It's obviously got nothing to do with the fact it works?

As Stu says, acid and alkalines.

Also, how is a water stain/mark/mineral deposit going to 'wear off'? What's going to happen on that paine of glass to 'wear it off'? Maybe ants with mini hobnail boots dancing the cha cha? Spiders with abrasive feet? Wasps armed with a bic razor?

 

[james51174]

not sure i would use a scourer.....

all i do is try a razor....if that doesnt work i just tell them there is nothing in my powers that i can do about it...but that it may wear off in time

This is getting quite funny.

I can post what I want because what I post is invisible.

Yes.... try a razor. Brilliant.

Have you maybe wondered why cleaning company's sell (expensive) branded acid type cleaners to remove water stains, mineral deposits and like. It's obviously got nothing to do with the fact it works?

As Stu says, acid and alkalines.

Also, how is a water stain/mark/mineral deposit going to 'wear off'? What's going to happen on that paine of glass to 'wear it off'? Maybe ants with mini hobnail boots dancing the cha cha? Spiders with abrasive feet? Wasps armed with a bic razor?

 

i should have used tthe quote function for my post i suppose

but it wasnt in response to you..im not saying chemicals dont work on alkaline stains

my post was in response to the person advising a scourer for egg plant

then i said what I tell the customer, because i dont use such chemicals....which is my choice is it not?...im not advising YOU personally to say anything of the sort

mainly because your not the one using a scourer to remove egg plant ffs

but thanks for your sarcasm...

[dazmond]

I was laughing at the suggestion to use fairy liquid!

I just use it for washing the dishes!

On topic i would use a special acid cleaner fr somewhere like the windowclean centre.

[Londoner]

You want to be really careful its not some form of coated glass before you start playing with acid and scourers or scrapers. There is also the possibility that the render has etched the glass (or the coating) in which case nothing will get it off. Plaster doesn't usually but cement can etch.. If you have spots that won't come off I would start walking away now saying that you are reluctant to try using anything stronger than soap and water. Which I would imagine has already been tried

Its only a job, theres always another one right around the corner. If somebody else can get it off then good for them but I would be long gone.