Found this on Grassroots Motorsport site, when a similar question was asked
on their blog:
The Simple Green website says:
Aluminum - Is it safe to use Simple Green on aluminum? Simple Green products
have been successfully and safely used on aircraft, automotive, industrial
and consumer aluminum items for over 20 years. However, caution and common
sense must be used: Aluminum is a soft metal that easily corrodes with
unprotected exposure to water. The aqueous-base and alkalinity of Simple
Green or Crystal Simple Green can accelerate the corrosion process.
Therefore, contact times of All-Purpose Simple Green and Crystal Simple
Green with unprotected or unpainted aluminum surfaces should be kept as
brief as the job will allow - never for more than 10 minutes. Large cleaning
jobs should be conducted in smaller-area stages to achieve lower contact
time. Rinsing after cleaning should always be extremely thorough - paying
special attention to flush out cracks and crevices to remove all Simple
Green/Crystal Simple Green residues. Unfinished, uncoated or unpainted
aluminum cleaned with Simple Green products should receive some sort of
protectant after cleaning to prevent oxidation.
-----Original Message-----
From: shop-talk-bounces@autox.team.net
[mailto:shop-talk-bounces@autox.team.net] On Behalf Of Tim
Sent: Wednesday, July 20, 2011 8:13 AM
To: Shop15Talk
Subject: [Shop-talk] FW: Re: Parts solvent--simple green?
Here is a reply I got that didn't go to the list. There are a couple
good points to consider.....
Tim
-------- Begin forwarded message --------
Subject: Re: [Shop-talk] Parts solvent--simple green?
Date: 7/20/11 6:41:01 AM
From: "Benjamin Zwissler"
To: "Tim"
Cc: "John Mitchell" , "shop-talk"
I see two issues with using non-solvent based fluids in parts cleaners.B
First, I've been told that if you leave aluminum and other non-ferrous
materials soaking in them they canB corrode all or part of the material
away.B I've seen some heavy corrosion myself but nothing further.B
Second, like most detergents it will be "used up" once you've cleaned a
finite amount parts.B Then you have to dispose of it and that's not easy
onceB itsB B loadedB with grease and oil.B You could pour it down the
drain,
but I doubt the local sanitary district would approve.B I have mineral
spirits and in 15 years I've added some and scraped the bottom of
settled out crud a few times that's it.B After cleaning in the parts
washer with mineral spirits I will often finish up with detergent
degreaser and water in the utility tub to get rid of any greasy residue.
B
Ben.....
On Wed, Jul 20, 2011 at 6:57 AM, Tim < tputland@charter.net
<javascript:parent.wgMail.openComposeWindow('tputland@charter.net')> >
wrote:
Has any one used simple green in a part washer?
On Tue, Jul 19, 2011 at 8:20 PM, John Mitchell wrote:
Hi, B I just ordered a 40 gallon parts washer and I'm now wondering what
to use in it. B It's going to be in my attached garage, so I'd prefer
that there not be horrible fumes but some are ok. B I'm not sure whether
I'm better off with a water based product or a non-aqueous solvent. B Of
course I want something that works for greasy cruddy car parts. B Any
suggestions? B And where do I get it from? How much do I need to get? B
Thanks B B John Mitchell
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