You could apply a coat of shellac to the platform surface of your pedals to 
seal the Aluminum surface. Cheap and easily repeatable as needed. 

Andy Cheatham
PIttsburghj 

On Tuesday, September 15, 2015 at 4:41:43 PM UTC-4, Deacon Patrick wrote:
>
> It's definitely aluminum and not dirt. It is only on the pedal contact 
> spot. If it was dirt it would be that color other places too and it's not. 
> I suspect sweat oxidizing the aluminum combined with the pressure to rub in 
> off the pedal on/into the skin of my foot.
>
> Yes, the whole exposure things seems most likely minimal, but I also know 
> that my brain injury turns me into a canary in a coal mine in a lot of 
> ways. Sardonic grin.
>
> With abandon,
> Patrick
>
> On Tuesday, September 15, 2015 at 2:12:35 PM UTC-6, Anton Tutter wrote:
>>
>> When your feet become dark grey after riding, I wonder how much of that 
>> is aluminum oxide (dark gray/black) and how much is dirt.  If you rode on 
>> plastic pedals would your feet still get the same dark gray?
>>
>> It would be interesting to know if metalworkers who work with aluminum 
>> develop any neurological problems as a result of handling aluminum year 
>> after year. I know that whenever I work with aluminum fenders, my hands get 
>> black with aluminum oxide. I'm guessing that the absorbtion ends up being 
>> very low, perhaps less than normal diet, but who really knows?
>>
>> Anton, who works in biology and has fun with aluminum
>>
>>
>>
>> On Tuesday, September 15, 2015 at 3:13:21 PM UTC-4, Deacon Patrick wrote:
>>>
>>> Anton, thank you. Yes, the anti-persperant was one of my questions. 
>>> After a ride, my forefeet are a dark grey and the aluminum pedals are 
>>> definately rubbed smoother on the barefoot side vs. the spiked side. The 
>>> logic of it seems to point to it not being an issue, but the price of it 
>>> being an issue is more extreme.
>>>
>>> For those responding about the other dangers of going barefoot -- thank 
>>> you for your concern! In the years I've gone barefoot the concerns listed 
>>> are non-factors with the exception of chemical or parasite exposure. 
>>> Chemical because way too much gets sprayed with all kinds of junk, and 
>>> parasite could potentially be an issue in a different geographic area. Of 
>>> course, the intent of this thread was not to be a critique of going 
>>> barefoot. Grin.
>>>
>>> With abandon,
>>> Patrick
>>>
>>> On Tuesday, September 15, 2015 at 11:53:47 AM UTC-6, Deacon Patrick 
>>> wrote:
>>>>
>>>> Anyone know about if the skin (specifically soles of the feet) can 
>>>> absorb aluminum via riding barefoot?
>>>>
>>>> Here’s what prompts the bizarre question: I’ve lost much of my summer 
>>>> to many “hard” brain days, including increased brain fog and new symptoms 
>>>> of mini-charlie-horses in the muscles near my bones as well as significant 
>>>> muscle twitching. At the recommendation of an herbalist who though I may 
>>>> have metal toxicity from my surgery last year, I began taking volcano dirt 
>>>> and have since begun doing better than I have since early spring. I’ve 
>>>> shifted to always wearing shoes when riding so I don’t risk messing things 
>>>> up, but there is a whole lot of corollary and very difficult to determine 
>>>> causal with all this (as is always the case). Hence, my question. Not 
>>>> meaning to delve into if/to what extent this is all whacky. Please respond 
>>>> off list if you feel inclined. Grin. I’m just wondering what the 
>>>> collective 
>>>> knowledge of this august body knows about the intersection of biology and 
>>>> metallurgy. Grin.
>>>>
>>>> With abandon,
>>>> Patrick
>>>>
>>>> *www.MindYourHeadCoop.org <http://www.MindYourHeadCoop.org>*
>>>> *www.OurHolyConception.org <http://www.OurHolyConception.org>*
>>>>
>>>>

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