[TheForge] rust finish

[Grant Marcoux]

Wayne:  Yes, by burnishing or carding, you remove the loose powdery oxides,
which are typically paler in color to your plum.  You can augment the
rusting process by moistening the piece with a spray bottle.  Rusting occurs
most quickly in warm and humid environments.  In the days of soft-soldered
double shotguns, all bluing was done by the "cold rust" process, which
involved an acidic bluing solution and a humid "sweatbox" into which the
plugged barrels were placed.  This was a slow process because of the need
for frequent carding to avoid runs.  Ironwork is not so exacting and the
longer you can let the rust bite the metal, the better.  This action can be
augmented with some white vinegar in the water spray.  Be patient

Grant

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net]On Behalf Of Wayne Ackman
Sent: Wednesday, January 07, 2009 5:25 PM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] rust finish


thanks Grant.  I was talking to a guy in town today about Permalac.
As a matter of fact, he has 5 gallons he found in his storeroom, tho'
he doesn't carry it anymore.  I told him to hold it for me, but I was
wanting to find some more information on how well this would work.  By
burnish, you mean just brush the hell out of it?  Do you need to apply
a deactivating agent.  Also would Permalac work well with an airless
sprayer?  Thanks for jumping in here, as my client is indicating that
this is how he wants it to go.  He feels that this mottled rusted look
is more "authentic".   :-)

Wayne Ackman





On Jan 6, 2009, at 1:21 PM, Grant Marcoux wrote:

> Folks:  Rust finishes can be maintained outdoors by coating with
> Permalac.
> I have had good luck by first rusting fully, then burnishing the
> rusted
> surface with a stiff nylon brush.  This produces a plum colored
> finish.
> Once the finish is burnished, after the desired depth is reached, then
> Permalac it.  I first used the rusting technique on ML barrels and
> it is
> quite handsome.  Grant
>
> -----Original Message-----
> From: theforge-bounces at mailman.qth.net
> [mailto:theforge-bounces at mailman.qth.net]On Behalf Of Wayne Ackman
> Sent: Monday, January 05, 2009 6:17 PM
> To: Blacksmithing List Sponsored by ABANA
> Subject: Re: [TheForge] rust finish
>
>
> That's what I think.  I'm going to have to dissuade my customer from
> this.  Maybe I can come up with a faux finish that will look similar.
> I have been experimenting the last few days and it looks like I can do
> this with a painted finish and then dry brush it for the mottled
> appearance.
>
> Wayne Ackman
>
>
>
>
>
> On Jan 5, 2009, at 8:27 AM, Andrew Vida wrote:
>
>> Not well by my standards.  If it *requires* maintenance, then it is
>> not
>> a good outdoor finish.
>>
>> Wayne Ackman wrote:
>>> I have used a rust finish several times. -- sandblast, wire brush,
>>> etc,
>>> then rusted and waxed.  Finally a clear coat of lacquer.  How well
>>> would
>>> this finish hold up outside?
>>
>> --
>>
>>    -Andy Vida
>>
>> 	Proof Technologies Inc.
>> 	IV&V
>> 	Project and Program Management
>> 	(304) 466-0789
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