rust stains on wall
 

the previous owner of our house let a toilet overflow leak for a long
time,the result being a dark rust stain all down the brickwork,has
anyone any idea of a product to shift it,the brick is very soft so we
cannot use a pressure washer or a wire brush,thanks in advance

On Fri, 30 Sep 2005 14:46:11 +0100,
wrote:

the previous owner of our house let a toilet overflow leak for a long
time,the result being a dark rust stain all down the brickwork,has
anyone any idea of a product to shift it,the brick is very soft so we
cannot use a pressure washer or a wire brush,thanks in advance

http://www.envirosafemfg.com/rust_stain_remover.htm

is a possibility. You can also try oxalic acid. It is a white crystalline
powder which will dissolve in water or dilute hydrochloric acid, which
seems to speed things up. Hydrochloric acid is corrosive and oxalic toxic.
LD50 for oxalic acid would appear to be about 25g, so accidentally
swallowing a whole ounce of the stuff would be unfortunate to say the
least. You may have to sign the poisons register at the pharmacy.

John Schmitt

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In article ,
John Schmitt wrote:

http://www.envirosafemfg.com/rust_stain_remover.htm

is a possibility. You can also try oxalic acid. It is a white
crystalline powder which will dissolve in water or dilute
hydrochloric acid, which seems to speed things up. Hydrochloric
acid is corrosive and oxalic toxic. LD50 for oxalic acid would
appear to be about 25g, so accidentally swallowing a whole
ounce of the stuff would be unfortunate to say the least. You
may have to sign the poisons register at the pharmacy.

....... or buy a couple of pounds of Rhubarb and
boil it up. :)

--
Tony Williams.

On Fri, 30 Sep 2005 16:23:27 +0100, Tony Williams
wrote:

In article ,
John Schmitt wrote:

http://www.envirosafemfg.com/rust_stain_remover.htm

is a possibility. You can also try oxalic acid. It is a white
crystalline powder which will dissolve in water or dilute
hydrochloric acid, which seems to speed things up. Hydrochloric
acid is corrosive and oxalic toxic. LD50 for oxalic acid would
appear to be about 25g, so accidentally swallowing a whole
ounce of the stuff would be unfortunate to say the least. You
may have to sign the poisons register at the pharmacy.

....... or buy a couple of pounds of Rhubarb and
boil it up. :)

And don't forget the custard ..Yummy....lol

Stuart




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Shift THELEVER to reply.

On 30 Sep 2005 06:46:11 -0700, " wrote:

the previous owner of our house let a toilet overflow leak for a long
time,the result being a dark rust stain all down the brickwork,has
anyone any idea of a product to shift it,the brick is very soft so we
cannot use a pressure washer or a wire brush,thanks in advance

Well Cillit Bang claims to remove rust stains, but I'm not sure how much you would need :)

Or use brick cleaner from one of the sheds.

Rick...

In article ,
Stuart wrote:

On Fri, 30 Sep 2005 16:23:27 +0100, Tony Williams
wrote:
....... or buy a couple of pounds of Rhubarb and
boil it up. :)

And don't forget the custard ..Yummy....lol

Sorry for the delayed reply.....

We used to use Oxalic acid to whiten-up aluminium
panels (I think it removes the copper, or something).
DIY'd from rhubarb, then bought as pure Oxalic acid.

The rhubarb juice produced a more pleasing 'whiten',
(less harsh), and was far easier to wash off.

--
Tony Williams.