How to Polish Glass to Get Rid of Frosting

Guest
Our "students" AKA taggers like to use some kind of frosting pencil to
graffiti up the mirrors. I'd like to find a way to polish the glass
so that this frosting becomes shiny glass again. I've thought about
rouge. But would something like a clear acrylic or similar make it
shiny? Thanks.
 
<alondra101@hotmail.com> wrote in message
news:fba2eda0.0409200708.57ef7a91@posting.google.com...
Our "students" AKA taggers like to use some kind of frosting pencil to
graffiti up the mirrors. I'd like to find a way to polish the glass
so that this frosting becomes shiny glass again. I've thought about
rouge. But would something like a clear acrylic or similar make it
shiny? Thanks.
Click to expand...
If they really have scratched the glass then it's a lot of work to fix. You
have to polish the whole surface down to the bottom of the deepest scratch
and then repeat with finer and finer compound.

Perhaps their marks are some kind of paint? Try using a scalpel to scrape a
section in a corner somewhere. If you can chip a littos of the frosting off
then it's on the surface of the glass and not cut into it. In which case you
need to find a suitable solvent for the stuff. You may have to try several
different things. Paint stripper may work - it's unlikely to effect the good
parts of the glass but make sure it doesn't drip onto other surfaces as it's
nasty stuff.
 
"CWatters" <colin.watters@pandoraBOX.be> wrote in message news:<csF3d.252283$ZK6.13047834@phobos.telenet-ops.be>...
alondra101@hotmail.com> wrote in message
news:fba2eda0.0409200708.57ef7a91@posting.google.com...
Our "students" AKA taggers like to use some kind of frosting pencil to
graffiti up the mirrors. I'd like to find a way to polish the glass
so that this frosting becomes shiny glass again. I've thought about
rouge. But would something like a clear acrylic or similar make it
shiny? Thanks.

If they really have scratched the glass then it's a lot of work to fix. You
have to polish the whole surface down to the bottom of the deepest scratch
and then repeat with finer and finer compound.
Click to expand...
These pens contain hydrofluoric acid:
"Vandals are increasingly using acid etching pens to damage store
windows. Often an auto glass repair shop can buff out the etching, but
you'll be left with distortion. If you find that your glass has been
etched, DO NOT TOUCH as the acid could burn you. Rinse the area with
lots of water to stop the acid working. Then you will need to decide
whether to replace the glass or have it buffed."
that was from:
http://cityofseattle.net/economicdevelopment/biz_district_guide/biz_dist_pages/graffiti.htm

and this site about hydrofluoric acid exposure:

http://www.emedicine.com/emerg/topic804.htm

So if it's not too deep you could polish it out like polishing a
telescope mirror with finer grades of rouge. Extreme exposure to
hydrofluoric acid can actually cut grooves in the glass!

You could overcoat with polycarbonate but then they'd probably go back
to emery paper.

Richard
 
"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:csF3d.252283$ZK6.13047834@phobos.telenet-ops.be...
alondra101@hotmail.com> wrote in message
news:fba2eda0.0409200708.57ef7a91@posting.google.com...
Our "students" AKA taggers like to use some kind of frosting pencil
to
graffiti up the mirrors. I'd like to find a way to polish the glass
so that this frosting becomes shiny glass again. I've thought about
rouge. But would something like a clear acrylic or similar make it
shiny? Thanks.

If they really have scratched the glass then it's a lot of work to
fix. You
have to polish the whole surface down to the bottom of the deepest
scratch
and then repeat with finer and finer compound.
Click to expand...
No, I'm not talking about scrratches. They're nowhere near as visible
as the frosting pens.

Perhaps their marks are some kind of paint? Try using a scalpel to
scrape a
Click to expand...

No, it's some kind of etching pencil, so after awhile the glass becomes
frosted.

section in a corner somewhere. If you can chip a littos of the
frosting off
then it's on the surface of the glass and not cut into it. In which
case you
need to find a suitable solvent for the stuff. You may have to try
several
different things. Paint stripper may work - it's unlikely to effect
the good
parts of the glass but make sure it doesn't drip onto other surfaces
as it's
nasty stuff.
Click to expand...
We have spray cans of graffiti remover, which is just such a stuff. It
removes paint no problem. But this isn't paint.
 
"Richard" <spudnuty@lycos.com> wrote in message
news:a686c665.0409202036.33560dc9@posting.google.com...
"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:<csF3d.252283$ZK6.13047834@phobos.telenet-ops.be>...
alondra101@hotmail.com> wrote in message
news:fba2eda0.0409200708.57ef7a91@posting.google.com...
Our "students" AKA taggers like to use some kind of frosting
pencil to
graffiti up the mirrors. I'd like to find a way to polish the
glass
so that this frosting becomes shiny glass again. I've thought
about
rouge. But would something like a clear acrylic or similar make
it
shiny? Thanks.

If they really have scratched the glass then it's a lot of work to
fix. You
have to polish the whole surface down to the bottom of the deepest
scratch
and then repeat with finer and finer compound.

These pens contain hydrofluoric acid:
"Vandals are increasingly using acid etching pens to damage store
windows. Often an auto glass repair shop can buff out the etching, but
you'll be left with distortion. If you find that your glass has been
etched, DO NOT TOUCH as the acid could burn you. Rinse the area with
lots of water to stop the acid working. Then you will need to decide
whether to replace the glass or have it buffed."
that was from:

http://cityofseattle.net/economicdevelopment/biz_district_guide/biz_dist
Click to expand...
_pages/graffiti.htm
and this site about hydrofluoric acid exposure:

http://www.emedicine.com/emerg/topic804.htm

So if it's not too deep you could polish it out like polishing a
telescope mirror with finer grades of rouge. Extreme exposure to
hydrofluoric acid can actually cut grooves in the glass!

You could overcoat with polycarbonate but then they'd probably go back
to emery paper.
Click to expand...
Thanks for the good info. I figured rouge would do something, but I
didn't think it would take that much work to buff it out. Maybe it
would just be better to use more etching pencil and make cute Xmasy
patterns all over the mirror, like holly leaves, etc. :0)


> Richard
 
Try posting this up...

http://www.healthandsafetycentre.org/i/posters/1996/ha9603.html

or perhaps..

http://www.interclean.com/InterClean/List/hf-warning/Hydrofluoric%20Acid%20report.htm

Quote:" None of the employees were told that contact on two percent of the
body can be fatal"

Perhaps a few random bag searches wearing rubber gloves and breathing kit
would do it?

Who sells this stuff to kids?
 
I'd chuck the mirrors in the trash and let them look at each other.
What next acid tagging people for moving adverts?
Maybe they can figure out a way to do it in color.
Sorry... just fed up with bad behavior from everyone including so called
adults.
Then they raise my taxes to pay for this crap and send the mental morons to
"behavior camp"
UGH I give... glad my days here are numbered.


<alondra101@hotmail.com> wrote in message
news:fba2eda0.0409200708.57ef7a91@posting.google.com...
Our "students" AKA taggers like to use some kind of frosting pencil to
graffiti up the mirrors. I'd like to find a way to polish the glass
so that this frosting becomes shiny glass again. I've thought about
rouge. But would something like a clear acrylic or similar make it
shiny? Thanks.
Click to expand...
 
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