I use Eezox for my cartridge guns and now use it as a protectant on my BP rifles and pistols.
The MSDS says that Eezox contains Trichloroethylene (TCE). TCE has been a suspected carcinogen, but the MSDS says that Eezox in not a carcinogen. There are 2 forms of TCE, 1,1,1-TCE and 1,1,2-TCE. Eezox has 1,1,1-TCE which is the least toxic of the two. The lethal concentration at which 50% of the organisms die is very high, suggesting that the toxicity is low.
Several tests have been done on steel plates immersed in salty water to speed up the rusting process. Eezox comes out on the top or near the top for best protection against rust.
A study done with a BP focus also recommends Eezox. According to the testers:
"I was quite surprised by the results. Lehigh Valley Lube is advertised as being very effective at preventing corrosion, but since it is easily washed off by water, I didn't expect it to do so well. I was also quite surprised how badly the Wonder Lube performed, since it is an oil/wax mixture. I expected the EEzOx to do well since solubilized waxes are known to be very effective and are used by many armour conservators.
Conclusions:
My opinion of Lehigh Valley Lube went up another notch, and I will no longer feel bad about leaving a uncleaned gun barrel overnight if I field-clean it with a wet LV patch (Note: This lube is now being produced in its original formula by the original maker - hooray!). I will still use EEzOx for a final coat, and I will never leave a gun stored for a long time with nothing but oil on the metal parts."
The cartridge gun tests I have seen show Rem Oil coming out the worst for protection.
If anyone wants the full tests, just email me and I will send them. I have them in word files with all the photos of the steel plates.
Ron