... buried deep in the MSDS on their website, it says "Avoid prolonged contact with white metals (i.e. Aluminum, Lead)"
FWIW,
I've asked the distributor about using it on AL alloyed firearms. Take from it what you will.
Paraphrasing: When used as directed, the cleaner becomes dry to the touch, so it will not have an adverse affect on alloyed metals. It might not react well with soft aluminum. Says they've had no complaints about damage on firearms.
My view:
If one is worried use another product. There are tons of different cleaners, lubes etc. out there. Myself I have not seen any damage or changes yet on my AL-alloyed firearm. It has looked and worked fine for the past couple of years. But it's not I've been using it for 10 years so I really have no idea of any long term effects. Others will have to chime in.
IMO, Eezox works best as a rust inhibitor and unless rust is a problem there is no clear advantage in using it over other reputable products. It's a good cleaner and a so-so lube. As a dry-lube, it's about the same as Breakfree from my usage.
If you have a rust magnet like an 870 express, it's just fantastic. I've gone months without seeing any rust whatsoever, whereas before there were rusty fingerprints everywhere.
For me because the solvents can be strong, I've taken precautions (ventilation, chemical masks, gloves etc). I have no idea about the long term health effects so, again, if it's a concern, use something else.
DISCLAIMER: Anything said here by me, past, present or future is worth like many things said in the Internet: NOTHING. Believe at your own risk.