Storing used Evaporust

you could always go to a "real" paint store (not lowes / home desperation) and get some one gallon paint cans. They sell them without any labels / exterior paper & you could seal up individual gallons of the material for later use.
 
I dont think you want metal cans. I think that's what evapo rust works on, and it may etch through if left long enough at least it would weaken the solution
 
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They sell plastic paint cans now. I may try that - thanks, Dave and Jeff.
 
I wouldn't have thought that Evapo Rust would eat any type of plastic. Thanks for the info
 
Sorry guys, in my little pea brain I was thinking the plastic paint cans but, apparently, that information never made it to my fingers for typing - - - - grrrr.
 
I purchased a gallon of the stuff as I was restoring a Burke #4 mill. I put it in a plastic tub with a snap on lid. That was a year ago. I just recently went to use it and there was just a brown jell at the bottom. I guess it needs to go into an airtight container. My lid did not seal well.
 
I keep my Evapo-rust covered tightly at all times, even when I am using it. Sometimes I think it matters how much water is in it compared to the active ingredients, just a gut feeling, but based on some results. I also think that Evapo-rust should have just enough detergent in it to make a few floating bubbles if you stir it briskly. This I know makes a difference. If you put oily or greasy parts in the Evapo-rust, it uses up the detergents that came in the Evapo-rust. Then the working ingredients cannot get to the rust easily, too much surface tension. If it seems flat, add a few drops of liquid dish washing detergent and see if you get bubbles. You do not want it sudsy or frothy, just enough to make some bubbles. It is a really good idea to remove all grease and oil, and loose rust, before putting the parts in Evapo-rust, if you want continued good results. Eventually, the chelating agent in the solution is used up by dissolving rust, and then it is dead. Until then you can stretch the life of it significantly, in my experience, if you take care of it and use it wisely.
 
I buy chemical containers and bottles from a scientific supply company. They make all type of glass and plastic bottles for lab use that resist strong acids and alkaline solutions. The company is Wheaton.
 
On the official Evaporust web site they claim that it does not harm plastic and can be poured down a city sewer.
 
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