[TheForge] pipe cleaning

[Jerry Frost]

I was wondering what blackness was being talked about. The mill coating is 
often a paintlike stuff and will yield to solvents like acetone or thinner. 
If there's going to be drilling, and such afterwards sandblasting or sanding 
will really increase tool wear.

Jer
----- Original Message ----- 
From: "James Binnion" <jbin at well.com>
To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Sunday, July 31, 2011 5:45 PM
Subject: Re: [TheForge] pipe cleaning


>
> On Jul 31, 2011, at 9:25 AM, Cindy and James wrote:
>
>> Some mention citric, vinegar, etc.  I
>> haven't tried them for cleaning but suspect they would work too but
>> maybe not as quickly as the more hazardous stuff.
>
> Neither will work if there is a coating of grease or oil on the work in 
> fact most acids will not do much good on oily or greasy work. First you 
> have to degrease with a solvent or aqueous detergent as you point out and 
> much scrubbing is generally involved .
>
> James Binnion
> jbin at well.com
>
>
>
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