[TheForge] TheForge Digest, Vol 74, Issue 17

[Dave Mudge]

Once again, the epoxy finish would be very durable but very shiny.
People (at least my clients) don't want a "shiny" rust finish. It
wouldn't look natural.
Natural is why they want the rust finish in the first place.

I did not use acid when I did this finish. Sometimes I sandblasted the
piece to bright metal
other times I wire brushed it. Use a stainless steel wire wheel. It is
cleaner and the ss wires
don't rust and break off nearly as fast as carbon steel brushes. Be
aware that a grinder
mounted or electric motor mounted wire wheel is one of the most
dangerous tools in your shop.
Always wear safety glasses and a face shield when using a wire wheel.

Mix a pint of Hydrogen Peroxide, 1/4 cup of vinegar, and a couple
table spoons of table salt.
Put this mixture in a plastic spray bottle that does not have any
metal parts in the sprayer.

Experiment!!! Try heating the piece, (or not) try letting the applied
patina dry before adding
the next coat. Try letting it dry then rinsing the goop off and
letting it dry again before adding
the next coat. You will have to experiment until you get what you were
expecting to get or
perhaps getting a much nicer result than you expected. Patinas are
very touchy. EVERYTHING
has an effect on your finished result including but not limited to,
temperature, humidity,
altitude, attitude,and aptitude. Phase of the moon, music that you are
listening to and
what type of beer you drink.

Yes, you will have to neutralize the rusting process before you apply
the sealing coat.
This is probably not a good finish for outdoor use. Maybe depending on
how you seal it
would determine if it would work outdoors.

What is the piece you want to rust finish anyway?

dave m

On Sat, Mar 20, 2010 at 9:39 PM, Jerry Frost <akfrosty at mtaonline.net> wrote:
>
> I like epoxy for long term outdoors though nothing is forever so eventually
> it'll need retouching.
>
> Don't worry about the dog and an acid nor PROBABLY chlorine. Acids are sour
> the chef calls acidic bright flavors. Normal folk call it sour and tend to
> love it if balanced with either sweet or creamy. Anyway, no dog, maybe one
> of Pete's excepting, is going to injest a dangerous amount of spilled acid.
> You're more likely to miss a flashing strobe in a cavern than a dog is to
> miss a dangerous concentration of acid in the grass. Goodness Darlin, if the
> dog won't eat it YOU steer clear, hear? Think canary in the mine. Oh sure,
> your dog is going to be delighted to eat things you would not only NOT
> consider but things that would sicken you and do it without bad effect.
>
> I don't hold with using chlorine AND an acid for anything. Chlorine is a
> strong base so mixing it with an acid might do a BAD thing, think free
> flowing chlorine gas, perhaps excessive heat or some mysterious bubbling
> vapor spewing goop. chlorine and salt should be pretty benign so long as you
> don't pick some exotically toxic or strong salt. Vinegar or muriatic acid in
> dilution and salt should be just fine and if the dog likes the flavor you
> might want to give it a try as a marinate or in a sauce. Take little tiny
> bites and only two the first time you try this in a recipe. Take notes of
> ANY stomach reaction! Besides that wonderful sated feeling of course. If you
> end up calling 911 for a quick ride to a poison crontrol savy hospital do
> NOT tell em I told you to give it a try!!! I am NOT suggesting you have
> muriatic acid for dinner! I'm just saying enough muriatic to be toxic will
> be so strongly SOUR you or the dog will be really unlikely to actually get
> it down your gullet.
>
> Once neutralized, well rinsed and thoroughly dried, I like 240f to drive off
> hygroscopic moisture trapped in the rust, a nice coat of clear epoxy should
> make for a good durable rust colored end finish.
>
> Best of luck.
>
> Jer
> -------------------------
> If it ain't forged
> It ain't real
> wrought iron is
> The Frostworks
>
>
>
> ----- Original Message -----
> From: "Lucky7Steel" <lucky7steel at gmail.com>
> To: <theforge at mailman.qth.net>
> Sent: Saturday, March 20, 2010 6:10 AM
> Subject: Re: [TheForge] TheForge Digest, Vol 74, Issue 17
>
>
> > Hi there,
> >
> > By lacquer i meant clear finish (like Tremclad). Dave does that mean that
> > it's safe to seal it with such a thing? Should i wipe the piece first
> > before
> > the spraying? I'm used to removing all the rust to clear coat! As for the
> > muratic acid/chlorine stuff. i'm worried it'll get on the grass and seap
> > into my garden. My dogs do like to eat whatever is lying around the back
> > including grass and dir (and poo but that's another story) ;-)
> > salt and vinegar, they can deal with ;-)
> >
> > ~Karen~
> >
>
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