[TheForge] Evaporust

[Peter Hirst]

Nope:  Ospho is very different, a rust converter.  Evaporust is a chelation 
agent -- no acid, caustic or solvent involved -- a big fat organic molecule 
that draws iron out of comnpounds.  Strong enough to break up oxides, but 
not pure iron or steel crystal, so it strips rust completely down to bright 
metal.  I've seen film deoms, and its pretty amazing, but absolutely abysmal 
marketing.  Except for being biodegradable, it has amazingly long useful 
life, as after chelation, iron precipitates out and its ready to go again.

THere are other chelation agents, but none as selective as this for iron in 
oxides.  SOme attack other metals, and some will attack bare iron.


----- Original Message ----- 
From: "robert hensarling" <rhrocker at hilconet.com>
To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Friday, May 30, 2008 7:02 PM
Subject: Re: [TheForge] Evaporust


> Peter, could that possibly be the same stuff as Ospho?  Usually comes in a 
> one gallon plastic bottle, bluish in color.  It's one of the acids, maybe 
> diluted hydrochloric?  I'm not sure.  If you have something that's really 
> rusty, this stuff attacks the rust making it inert, turning it both black, 
> and sort of a white powder.  It's a primer also.  Good stuff, just have to 
> use the usual cautions.  However, this may not be what you're looking for.
> ----- Original Message ----- 
> From: "Peter Hirst" <saltydog335 at aol.com>
> To: "Sponsored by ABANA" <theforge at mailman.qth.net>
> Sent: Friday, May 30, 2008 6:02 PM
> Subject: [TheForge] Evaporust
>
>
> have been trying to get get Evaporust: maybe the worst distribution sytem 
> for any product I have ever encountered. The so- called distributor in 
> Connecticut currently stocks exactly one five-gallon pail, which may or 
> may not still be there if I make the trip, and can't tell me if or where 
> its retailed. Neither can the Mfr. Only refers me back to the CT 
> distributor. I understand that for squeaky clean rust removal, its the 
> stuff to use: anyone know where I can get it in New England? Or if there 
> is another chelating agent available that is a decent substitute?
>
> thanks
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