Tuesday, 21 October 2014

Re: [atlas_craftsman] Truth about Purple cleaner actual test

 



I have no idea if the material was coated in fact, or not.  If it was, it is a thin coating, and the lye apparently removed it easily.  There was a slight delay between putting in the sample and the beginning of bubbling, which I can accept attributing to a coating.
 
I have no doubt whatever that the coating, if present, was removed and the aluminum was directly attacked, due to the vigorous bubbling on both sides.  The "hand" of the etched side is different, in keeping with it being somewhat thinner, as well.  I did not, however, attempt to ignite the gas given off, which would presumably be hydrogen.
 
Mentioning the test elsewhere produced a host of folks who routinely clean aluminum with lye based cleaners, and who cannot figure out what the fuss is about.
 
Jerry
----- Original Message -----
Sent: Tuesday, October 21, 2014 10:12 AM
Subject: Re: [atlas_craftsman] Truth about Purple cleaner actual test

I am very willing to believe that the Purple cleaner has only a slight reaction with bare Aluminum over a reasonably short time, ie cleaning but not prolonged submersion with a large volume of cleaner.

That said, it is possible that the cleaner in the experiment only removed the plastic on both sides? If the plastic is on both sides its removal might explain the difference in pre/post test measurements?

Might be interesting to repeat with a non coated sample?

Whit

Sent from my iPhone

 

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