Tuesday, 21 October 2014

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

On Oct 21, 2014, at 7:34 AM, jerdal@sbcglobal.net [atlas_craftsman] <atlas_craftsman@yahoogroups.com> wrote:

 



Yes, it may have a 'skim coat" of plastic on it.  But not enough plastic to bother the test, since the foil, after a slight delay as the plastic was apparently penetrated, was visibly covered by bubbling solution on each side.  Obviously the plastic coating, if present, was not affecting the test.
 
There WAS measurable removal of material, and therefore we can confidently say that the cleaner was contacting the aluminum, since we know that it does react with aluminum, and would expect to see evidence of that.   The bubbling, material removal, and foam on both sides of the material during the test verify that the plastic was not preventing the reaction.
 
It took approximately 20 to 30 seconds for the cleaner to penetrate the plastic and begin vigorous bubbling.
 
Jerry
----- Original Message -----
Sent: Tuesday, October 21, 2014 7:13 AM
Subject: Re: [atlas_craftsman] Truth about Purple cleaner actual test

Aluminum foil is actually a bit of foil covered with thin plastic on each side. I don't know what this means to your test, thank you for doing it, but thought I'd mention it.

Rick H

 

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