Subject: Plated bolts

From: [email-masked]
Date: 9 Feb 1996 10:00:36 EDT

TH>Other than heating a threaded rod to remove the plating (dangerous fumes)
TH>does anyone know a good way to remove the plating on bolts and threaded
TH>rods?
TH>Thanks,
TH>George Dixon

George,  Try dilute muriatic acid, available at hardware stores or
swimming pool supplys.  Used full strength the acid will bubble and
froth the plating off in less than a  minute . . . HOWEVER, as with all
acids use protective clothing, gloves and eyeware!!!!  This should be
done outside.  I've used this for a number of years with success . . .
just be careful.  For disposal of "tired" acid I dilute it with water
and pour it on a limestone gravel road.

Roger Carlsen
Ephraim Forge, Inc
[email-masked]

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From: [email-masked] (jeramo)
Date: Fri, 09 Feb 1996 08:16:31 -0800

>In message <v01530501ad40700dcd1d@[166.82.181.169]>  writes:
>> Other than heating a threaded rod to remove the plating (dangerous fumes)
>> does anyone know a good way to remove the plating on bolts and threaded
>> rods?
>> Thanks,
>> George Dixon
>> Muriatic acid will remove plating from bolts, threaded rod, etc.  Just place 
>the hardware in a plastic bucket and pour it on.  It will fume and smoke for a 
>short time and the plating will be gone.  Hundreds can be done in the time it 
>would take to do 1 part in the forge.  Of course, this should be done
outside.  
>The acid can be poured back into its jug and the parts flushed with fresh
water.
>This process will also remove rust but if the parts are not dried immediately, 
>it will also cause them to rust.  Muriatic acid is available in any hardware 
>store as it is used primarily for cleaning brick and stone.  It's cheap, about 
>$3.50 a gallon and a gallon can last several years.  Like most acids, 
>temperature is a factor in the speed of operation.  The warmer the faster.  Of 
>course, all of the safety proceedures for acids should be observed with this 
>acid as with any other.  Give me a holler if I can be of any further
assistance.
>Steve Kayne
Would this be an effective way to remove the lubricant/rust inhibitor/gunk
from new wire rope before forging???

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From: [email-masked] (jeramo)
Date: Fri, 09 Feb 1996 08:19:40 -0800

>To All,
>To remove plating from bolts and threaded rod, use muriatic acid. The
>reaction is fast so it wont take long at all. Rinse well with water,
>neutralize the acid with sodium bicabonate and oil if you are not going to do
>any thing with them right away. Do not rinse them in the slack tub. The acid
>will change the quenching properties of the water.
>
>Bill Hochella

>Could this be used to remove the lubricant/rust inhibitor/gunk from wire
rope before forging??????

Raymond Coon    drowning in Portland, OR

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From: [email-masked] (MR WILLIAM A HOCHELLA)
Date: Sat, 10 Feb 1996 19:07:01 EST

To All,
The best (?) and safest (?) way to remove all the gunk from wire rope 
prior top forging may be to boil it in TSP, tri-sodium phosphate. 
This stuff is avaialble from your local hardware store. If you cant 
find TSP, try Spic'n'Span, same stuff. If you have galvanized rope, 
then use the muriatic acid. If you are using a coal fired forge with 
better than normal ventilation, the act of heating it up may be 
enough to burn out all of the oils, etc. Usually inhibitors do not 
contain anything except oils and waxes.

Regards, 
Bill Hochella