Topic: Dealing with Rust and Chrome

[m00ntan]

The phosphoric acid just gets poured back into jugs until the next use.  What I want to get rid of gets sprayed on anything outside that can rust.

[Bob Wessner]

How do you guys dispose of the acid? I don't really have any garage drains or anything like that.  Is it safe to pour on soil?

If you really must dispose of it, do you have a hazardous waste disposal facility nearby? Don't dump it down any drains. You can neutralize it with baking soda.

[ZetecOwns]

How do you guys dispose of the acid? I don't really have any garage drains or anything like that.  Is it safe to pour on soil?

If you really must dispose of it, do you have a hazardous waste disposal facility nearby? Don't dump it down any drains. You can neutralize it with baking soda.

I'll check on the waste disposal. I'm shooting for a good sized container full (5 gallons water, 1 gallon acid), so it won't be the easiest thing to pour into jugs. I'll be sure to neutralize it first.

Thanks for the information.

[BobbyR]

Home Depot with the paint thinner.  Klean-Strip Phosphoric Prep & Etch, $13.75 gal,
MFG Model # : GKPA30221
MFG Part # : GKPA30220 .

Thank you, I appreciate that! I'll pick some up and dilute it with five parts water, as Terry recommended. I've got quite a bit of parts that will go in the vat.

How do you guys dispose of the acid? I don't really have any garage drains or anything like that.  Is it safe to pour on soil?

If you use Terry's method you must also buy a good quantity of Beer. This way you have some way of occupying yourself during the process. Otherwise you may rush the process and have poor results.

[ZetecOwns]

If you use Terry's method you must also buy a good quantity of Beer. This way you have some way of occupying yourself during the process. Otherwise you may rush the process and have poor results.

A good quantity of beer, huh? How about five parts beer to one part hour? Just in the name of consistency and all. 

[BobbyR]

If you use Terry's method you must also buy a good quantity of Beer. This way you have some way of occupying yourself during the process. Otherwise you may rush the process and have poor results.

A good quantity of beer, huh? How about five parts beer to one part hour? Just in the name of consistency and all. 

Works for Terry. That is his secret weapon.

[m00ntan]

I don't see the point in diluting phosphoric acid.  I pour it straight into aluminum turkey pans and  soak the parts until everything is nice and foamy, ten or twenty minutes.  Then I pour it back into jugs until my next rusty part is ready.   I'm as cheap as the next guy, but I find diluting just confuses me, since it doesn't seem to loose it's properties, and I need to know when it's full strength (allways).

If you need a five gallon tub of this stuff, you should really consider treating one corner of the part at a time.  You can spray too, but it seems to dry before it has time to react.

Whatever is unwanted, give to somebody with one of those Arrow metal sheds or a lot of iron railings.