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Re: Excessive Brake Dust
BMW BMW General Discussions (alt.autos.bmw)
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#51
 
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Re: Re: Re: Excessive Brake Dust -
07-26-2003
, 06:18 AM
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"Hugh Gundersen" <hsg (AT) h-gee (DOT) co.uk> wrote in message news  op2iv875130cdlprv4e8dsfaus8fji8ki (AT) 4ax (DOT) com...On Tue, 22 Jul 2003 12:00:56 -0700, John Lee <> wrote: If we are talking "Cleaning the wheels" then a good idea is to visit your local school chemistry lab and get some diluted Hydrochloric acid or buy some proprietary wheel cleaner that has HCL in it. Mix up a solution of "washing up" liquid and "antifreeze" with water. 30% Antifreeze will do and wash the wheels with this solution using a brush. The antifreeze will make the water wetter (break down the surface tension and attack the brake dust from below thus releasing it and it should wash off easily. The HCL will finish the job but be careful if any of the clear lacquer is chipped showing bare alloy - the HCL will attack it and you will get a white powder showing in time (Aluminium oxide) Hugh Another important side-benefit of Hugh's method is that you don't have to wash your hands afterward. There won't be any of that dirty epidermal layer left on those clean, white bones. My vote for most significant understatement of the year goes to "the HCL will finish the job." Just the sort of uneducated smart answer I might have expected. If it's that |
country having lived there for quite a few years) unless it's gov' approved and
the UN have passed it don't touch it!
Be sensible and you will be Ok. Remember they use it in schools and HCL in the
diluted form you will get it is OK just don't drink it and wear rubber/plastic
gloves.
Hugh
Intelligence is not knowing the answer but knowing where and how to find it!
Hugh Gundersen
hsg (AT) h-gee (DOT) co.uk
hsg (AT) bognor-bill (DOT) co.uk
http://www.bognor-bill.co.uk
Bognor Regis, W.Sussex, England, UK
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Orsisarsis Asderisorsis.
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Vunarz
PERORZ
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#52
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On Fri, 25 Jul 2003 17:35:52 GMT, "Skid" <skid2 (AT) comcast (DOT) net> wrote: "Hugh Gundersen" <hsg (AT) h-gee (DOT) co.uk> wrote in message news op2iv875130cdlprv4e8dsfaus8fji8ki (AT) 4ax (DOT) com...On Tue, 22 Jul 2003 12:00:56 -0700, John Lee <> wrote: If we are talking "Cleaning the wheels" then a good idea is to visit your local school chemistry lab and get some diluted Hydrochloric acid or buy some proprietary wheel cleaner that has HCL in it. Mix up a solution of "washing up" liquid and "antifreeze" with water. 30% Antifreeze will do and wash the wheels with this solution using a brush. The antifreeze will make the water wetter (break down the surface tension and attack the brake dust from below thus releasing it and it should wash off easily. The HCL will finish the job but be careful if any of the clear lacquer is chipped showing bare alloy - the HCL will attack it and you will get a white powder showing in time (Aluminium oxide) Hugh Another important side-benefit of Hugh's method is that you don't have to wash your hands afterward. There won't be any of that dirty epidermal layer left on those clean, white bones. My vote for most significant understatement of the year goes to "the HCL will finish the job." Just the sort of uneducated smart answer I might have expected. If it's that bad why is it used in commercial products - Oh! forgot in the US (a lovely country having lived there for quite a few years) unless it's gov' approved and the UN have passed it don't touch it! Be sensible and you will be Ok. Remember they use it in schools and HCL in the diluted form you will get it is OK just don't drink it and wear rubber/plastic gloves. Hugh Intelligence is not knowing the answer but knowing where and how to find it! Hugh Gundersen |
follow-up, I did post a serious elaboration and a link to a site with a full
discussion of wheel cleaning products containing acid and how to use them
responsibly.
All kidding aside, I think it is bad advice to suggest that people mix up
their own batches of acid and antifreeze and apply it to expensive wheels.
Get the proportions wrong or overspray it on the paint and you've got
trouble. It is certainly less risky to buy a bottle of commercial cleaner
that has been formulated and tested for the purpose and follow the
manufacturer's directions.
And I'm not going to take the U.S.-bashing bait. If you lived here as long
as you say you'd know we don't trust the U.N. to make decisions for us, and
it takes so long for the government to approve good ideas or rescind bad
ones that a fair number of Americans have finally learned to think for
themselves. I agree with your sig line and I would suggest that the link I
provided in a previous reply shows I try to live up to it.
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