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Three problems with the answer Posted by CrNiFe [Email] ![]() ![]() ![]() In Reply to: Simple Green is bad for Aluminum?, B Millar ![]() ![]() |
1)"aluminum is a soft metal that easily corrodes with unprotected exposure to water."
This is NOT true. Aluminum does not corrode easily in water. Oxygen in the air reacts with aluminum metal to produce Al2O3, which is a hard adherent oxide on the surface. Anodizing enhances this process to make the natural oxide coating thicker.
2) Unfinished, uncoated or unpainted aluminum cleaned with Simple Green products should receive some sort of protectant after cleaning to prevent oxidation.
This does not make sense at all. If you leave clean aluminum in air, it builds up the oxide layer in seconds.
3) The aqueous-base and alkalinity of Simple Green All-Purpose Cleaner can accelerate the corrosion process."
The biggest issue is that they say that it is alkaline. We used caustic soda (very high pH, 14+), to clean the oxide from aluminum before we anodized it. Make sure you rinse it off after you use it to clean aluminum.
CrNiFe
Toronto
Metallurgist with lots of aluminium (our spelling version) experience.
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