Just be sure to remove the crusts before you stuff the bread into the
pipe.  Crusts don't break up as easily and can block the water line.
mark


mark
Mark Woolley |PTRL Laboratory | Avaya | 1300 West 120th Ave |
Westminster, CO 80234  USA |
Voice (Lab): (303) 538-2166 | email: [log in to unmask] |

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Mike Fenner
Sent: Tuesday, April 03, 2012 1:38 AM
To: [log in to unmask]
Subject: Re: [TN] NTC- unmeltable solder

A piece of supermarket white is also excellent cleaning sponge for
things
like classic car instruments. 

(just thought you would like to file this for future reference)


Regards

Mike 
 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
Sent: Monday, April 02, 2012 8:58 PM
To: [log in to unmask]
Subject: Re: [TN] NTC- unmeltable solder

It depends on which oven is going to be used to bake it.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Robert Kondner
Sent: Monday, April 02, 2012 2:56 PM
To: [log in to unmask]
Subject: Re: [TN] NTC- unmeltable solder

For electronics does the bread need to be lead free?

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge Hernefjord
Sent: Monday, April 02, 2012 3:49 PM
To: [log in to unmask]
Subject: Re: [TN] NTC- unmeltable solder

Mother's pride or what kind?
Inge

On 2 April 2012 12:38, Gerald Bogert
<[log in to unmask]>wrote:

> April 2, 2012
>
> The problem may not have anything to do with the solder used. The pipe

> could have some water remaining in it or a valve upstream of where you

> are soldering could have small leak.  Any amount of water leak can 
> make it difficult if not impossible to make a solder joint.  Old 
> plumbers trick by putting small piece of bread into the pipe may stop 
> the leak long enough to make the solder joint.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
> Sent: Thursday, March 29, 2012 4:57 PM
> To: [log in to unmask]
> Subject: Re: [TN] NTC- unmeltable solder
>
>  Hi Blair - one other possible reason but lower on the possibility 
> scale is that the solder joint, if old enough, had converted itself 
> into a tin/copper joint rather than copper and solder joint. Most 
> solders contain a low melting element - i.e. lead, bismuth, etc. - so 
> the solder joints should go molten but if you had a high tin alloy 
> with minimal lower melting point element addition, you would be trying
to
"melt"
> copper/tin intermetallic which isn't going to happen.  Mike's or 
> Chuck's responses are more probable explanations for what you
experienced.
>
> Dave
>
>
>
> Blair Hogg <[log in to unmask]>
> Sent by: TechNet <[log in to unmask]>
> 03/29/2012 12:20 PM
> Please respond to
> TechNet E-Mail Forum <[log in to unmask]>; Please respond to
> Blair Hogg      <[log in to unmask]>
>
>
> To
> <[log in to unmask]>
> cc
>
> Subject
> [TN] NTC- unmeltable solder
>
>
>
>
>
>
> The recent discussions on rework issues reminded me of a while back 
> where I needed to repair a leaky water pipe in my home. Took a chunk 
> of the ceiling out, got out the plumbers torch, drained the pipes and 
> started to heat. No matter what I did to the joint that was leaking I 
> could not get
>
> anything to melt. Had to cut the pipe on either side of the elbow 
> joint and patch in a new section. Even afer I took it out I could not 
> get it apart. Not sure what happened to the solder but something 
> changed it to make it unmeltable.
>
> Blair
>
>
>
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