[TheForge] Temper colors

[Jerry Frost]

Ayup, that's what's happening. Polished steel is nothing but millions of
super fine scratches and will patina in a very short time, sometimes
seconds. Spray Windex contains ammonia and alcohol, a strong base and a
hydrophilic plus whatever surfacants they use. Ammonia is a popular
patination chemical most often used with copper alloys but is also good for
controlled iron/steel patinas. It's not as potent on steel as peroxide and
or salt but will still cause degrees of oxidation.

Without some form of anti-oxidation finish you WILL get color changes, heat
will speed them up.

Frosty
-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Peter Fels & Phoebe
Palmer
Sent: Thursday, January 9, 2014 8:12 AM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] Temper colors

Martin, unless it's bone dry where you are, polished steel should not be
left bare.
Even fingerprints will etch it when  bare.

On Jan 9, 2014, at 5:15 AM, martin marks wrote:

I do not finish the blades with anything other than windex atm. I let the
people i give these to know that they should treat them with food grade oil
after they are clean/dry. 
--------------------------------------------
On Wed, 1/8/14, Jerry Frost <akfrosty at mtaonline.net> wrote:

Subject: Re: [TheForge] Temper colors
To: "'Blacksmithing List Sponsored by ABANA'" <theforge at mailman.qth.net>
Date: Wednesday, January 8, 2014, 6:46 PM

A last question for you  Martin.
What are you finishing the blades with? If oils, many change colors with a
little time and in seconds if heated. Some waxes do the same but more
slowly. These too are patinas and can be controlled to a degree in the shop
but not in the customer's hands. Care needs to be taken with the final
finish/sealant/rust preventative. For food I like bacon grease, culture
permitting of course. Animal grease is a low toxicity, polymerization and
color change finish.

Frosty
-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net]
On Behalf Of martin marks
Sent: Wednesday, January 8, 2014 4:32 AM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] Temper colors

This is it. It is going through the Patina process. The heat speeds up the
reaction tremendously. Glad to get to the bottom of this.
Thanks guys. 
--------------------------------------------
On Tue, 1/7/14, Ron Childers <ron at munlaw.net>
wrote:

 Subject: Re: [TheForge] Temper colors
 To: "Charles" <xlch58 at swbell.net>,
"Blacksmithing List Sponsored by ABANA"
<theforge at mailman.qth.net>
 Date: Tuesday, January 7, 2014, 12:25 PM

 Salt, sauce, etc. will tarnish a
 polished blade. We call it "antiquing" when we want a patina. It will
actually protect the blade. Dab some mustard  on it, let sit an hour or so
and wash off; repeat until you  get the desired effect.
"Mustardizing".   

 -----Original Message-----
 From: theforge-bounces at mailman.qth.net
 [mailto:theforge-bounces at mailman.qth.net]
 On Behalf Of Charles
 Sent: Tuesday, January 07, 2014 12:03 PM
 To: Blacksmithing List Sponsored by ABANA
 Subject: Re: [TheForge] Temper colors

 Heat will speed up most chemical reactions

 Charles



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