Hi Jock
On (07 Sep 97) Jock Rogan wrote to Alec Cameron...
 JR> Subject: Cast Iron Kettles
 AC> Why is the rust a problem?
 JR> Wife thinks black water is un-appealing.
Ahah! Got it. Not everyone has my crummy eyesight. Poor vision can be a
blessing: I see no dust on the floor, my 1982 auto looks great, original
paintwork, left in the outdoors always........ and every female I see looks
just beautiful and young.
 AC> the "noble" metal does its job. If you suffer from indigestion or
 AC> stomach ulcers this might suit you fine!! but unsupervised
 AC> medication carries risks.
 JR> Well, I have found in the past that phosphoric acid was excellent at
 JR> halting 
 JR> rust.
 JR> Seemingly it converts the rust into some sort of inert metal and bingo 
end
 JR> of 
 JR> rust problem.
 JR> Wasn't sure about the health aspect of it though.
I don't think phosphoric acid, is found in the kitchen: certainly not due to
cooking vessels.
Yes, it is a great rust inhibitor and has been for more than 50 years. I 
hink
the first large scale industrial use was in bicycle manufacture: the tubular
frame of bikes is usually unrusted after very many years of neglect. How very
different from automobile body structures!! Can you remember the last time 
ou
saw a rust hole in a bicycle?!
So when you make a windmill generator, due some prime coating with that acid.
But remember the goggles and rubber gloves!
Cheers.......ALEC
... .....Nostalgia, isn't what it used to be
--- PPoint 1.92
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