> one more slightly off-topic question: can a solder gun be used in place
> of a torch setup where silver soldering is concerned?
> Kelly <who is afraid of setting table/curtains/cats on fire with a
> No, Silver solder melts at too high a temp (1160 to 1616 F) for a
> soldering gun.
Kelly, who is nothing if not determined.
OH. and they also make a silver (colored) epoxy.
Remove the 'NOzSPAM' to email me.
You don't want to use these torches anywhere around your polyclays, as
they will cause them to burn quickly, releasing toxic fumes. I've
actually blown up stones with these (on accident)- they get very hot.
You'll also need a "pickle" like Sparex, which is basically a mild
acid bath to remove the oxides that form on the silver during the
soldering, and also a flux to help the solder flow.
You can use a soldering iron to attach two pieces of silver (using low
melting lead solder, available at any hardware store), but the bond
isn't as strong, and the solder is _very_ obvious.
Hope this helps some.
"Tolerance implies a respect for another person, not because he is wrong or even because he is right, but because he is human"
> I'll try to help here, as I work both in silver and in polyclays.
> For any true silver soldering (using silver solder) you need a torch
> of some sort. You can get an inexpensive one at Radio Shack starting
> at about $15 for a butane one. These are _not_ precision tools, and
> tend to overheat what you are working on, but with practice can do a
> decent job soldering. The least expensive torches that I would
> recommend are around $60-$75 (the "Blazer" micro torch)
> How do you plan on combining them?
> You cannot mix them, as the PMC needs to be kiln fired at fusing
> temperature for the metal (I don't believe a torch alone will do it-
> even if you wanted to stand there for the half hour or so it takes for
> the fusion to take place)
Before you start soldering PMC you might want to check out www.pmclay.com.
Look in their Tech Tips, Spring 1998, Vol. 1 No. 3, for a piece by J. Fred
Woell on exactly this subject. It seems PMC is more porous than typical
silver and may or may not take soldering well, depending on a number of
I've found this site useful on a number of occasions; I think it's connected
with the excellent newsletter Rio sponsors for its PMC customers.
10. OT:Lost msgs