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Re: Topband: Silver solder

Subject: Re: Topband: Silver solder
From: Merv Schweigert <>
Date: Tue, 30 Dec 2014 15:30:27 -1000
List-post: <">>
Here in salt air regular solder turns to white powder pretty fast,
I have been also using lead free solder,  I got a roll of plumbers
solder and a jar of resin flux.  works very well on #10 radials and
4 inch wide copper strap etc.   Have left several joints exposed
and there is no corrosion after 4 years.
Works great so far.
73 Merv K9FD/KH6

2% is about what the lead-free electronic solders are (they are a 
tin/silver/copper alloy and are mostly tin). Don't bother with the 30%. My 
mechanical contractor uses this stuff to fix things he can't reach well enough 
to braze. It's not generally used for anything normal.

Coincidentally I was just out soldering more radials last night. I use 18 gauge 
solid copper radial wire and a 1/2" copper pipe ring to tie them together. My 
original 29 radials were all soldered with lead-free electronic solder and they are 
all fine after 2-3 years. I didn't do anything to try to protect the soldered 
connections -- everything is fully exposed and lying on the ground.

I added 31 more radials. I soldered some the same way, but I'm trying regular 
lead-free plumbing solder on the others. I am finding the plumbing flux to work 
better than the rosin-core solder (it wets the joints more evenly). I'm not 
sure what the exact alloy is for the plumbing solder.

If you use the solder bars remember that you'll need separate flux and brushes 
to apply it. I like the water soluble flux -- it cleans up way easier.

-Bill KB8WYP

Sent from my iPad

On Dec 30, 2014, at 7:28 PM, Jorge Diez CX6VM <> wrote:


I read about using silver to solder wire radials to terminals

This week I decided to ask sellers about silver solder and they offered me a 2% 
and 30% silver bars

What we need for our use? Will be ok to use 2%? The difference in price is 
extremely high!


Enviado desde mi iPhone
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