[TheForge] finish problem

[Clyde]

Thanks for the input Bruce. I'm a non-chemist so had no idea what salt and vinegar produces besides rust. Actually most pieces have been in the 10% muriatic bath for a while to remove all the mill scale, then rinsed before the peroxide formula is sprayed on. So I guess I'm not concerned that a little more muriatic is generated (should I be?).

Anyway, the rust formula can vary considerably with still good results so less salt as you suggest is one of the many variables (along with temperature, air moisture, time, rinse, etc.) that will end up with different but good results. 

So thanks again. And thanks to Peter and Jerry for the kind comments.

Clyde Wynia
http://jurustic.com


I just went back and looked at Clyde's formula, and want to suggest a
possible modification:

Clyde's formula:
1 pt. peroxide
1 cup 5% vinegar
1/4 cup salt.

The non-chemist might not realize that combining vinegar and salt
effectively produces a dilute, but persistent, solution of muriatic
acid (=hydrochloric acid).  The organic acid will maintain the pH much
better than would a muriatic acid solution of the same (initial) pH.
Hence, vinegar + salt is a good, safe way to use muriatic acid with
little hazard.

If this is ALL the salt is doing, then I believe 1/4 cup to be much
more salt than necessary.  So if the salt causes any problems, try
using less -  like maybe a  teaspoonful.

Note, however, that salt is corrosive in its own right, so this
modification may not behave the same as Clyde's formula.

> ----- Original Message -----
> From: "Peter Fels & Phoebe Palmer" <artgawk at thegrid.net>
> To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
> Sent: Tuesday, March 30, 2010 6:26 PM
> Subject: Re: [TheForge] finish problem
>
>
> I'll offer a rust testimonial here...I used Clyde's formula and it
> worked as well as his work is great.. That is to say, very.
>
> Clyde wrote:
>> I rust a lot of sculptures, some tiny, some 25 feet tall. I sold over 950
>> last year plus many that I kept for my sculpture park, gave to schools
>> etc.
>> All are rusted so I need to rust a lot of stuff fast to keep up.
>>
>>
>>
>> Peroxide alone is not good rust maker. A mixer of a pint of peroxide, a �
>> cup of salt and a cup of 5% acid vinegar is a good start. If the iron is
>> prepared right and the weather is warm and damp I can have a pretty
>> passable
>> rust in an hour. Overnight it looks great.
>>
>>
>>
>> You have to get the mill scale, dirt, paint, etc off. I use sandblasting
>> or
>> tumbling or a 10% solution of muriatic acid to get down to the bare metal.
>>
>>
>>
>> After spraying on the mixture I rinse the piece off with a hose, sometimes
>> after an hour, sometimes the next morning. It depends on the moisture in
>> the
>> air and temperature and the effect you want.
>>
>>
>>
>> Clyde Wynia
>>
>> http://jurustic.com
>>
>> http://flickr.com/photos/jurustic
>>
>
> ______________________________________________________________
> TheForge mailing list
> Home: http://mailman.qth.net/mailman/listinfo/theforge
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:TheForge at mailman.qth.net
>
> TheForge mail list group photo site is
> http://www.photoaccess.com
> Login: blacksmithblacksmith at hotmail.com
> Password: anvil
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>



-- 
Bruce
NJ
______________________________________________________________
TheForge mailing list
Home: http://mailman.qth.net/mailman/listinfo/theforge
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:TheForge at mailman.qth.net

TheForge mail list group photo site is
http://www.photoaccess.com
Login: blacksmithblacksmith at hotmail.com
Password: anvil

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html