Solder recipies

Jewelry Discussion
1

At 11:30 AM 11/11/96 EST, you wrote:

Hi !
Does any one have recipies for making solder ,silver/gold especialy red gold?

Have Fun
Brandeil

2

Does any one have recipies for making solder ,silver/gold especialy red gold?
Have Fun
Brandeil

I recommend purchased solders as your best bet, you can buy them in all
colors. However if you have to make some you can use brass (standard brass
a ‘prealloy’ containing 35% zinc and 65% copper) this allows you to alloy
it with a chunk of the gold you are using and so retain a similar color.
You will however not be abel to sell the piece in the US legally because it
is not ‘plumb’ (the same carat as the gold used) unless you add some finer
content gold to the piece to make up for the lower carat solder being used.
You don’t want to make too much and you’ll have to experiment with relative
amounts, melting temp etc.

Charles

Brain Press
Box 1624, Ste M
Calgary, Alberta, T2P 2L7
Canada

tel: 403-263-3955
fax: 403-283-9053
Email: @Charles_Lewton-Brain

3

At 16:51 11/11/96 -0600, you wrote:

Does any one have recipies for making solder ,silver/gold especialy red gold?
Have Fun
Brandeil

I recommend purchased solders as your best bet, you can buy them in all
colors. However if you have to make some you can use brass (standard brass
a ‘prealloy’ containing 35% zinc and 65% copper) this allows you to alloy
it with a chunk of the gold you are using and so retain a similar color.
You will however not be abel to sell the piece in the US legally because it
is not ‘plumb’ (the same carat as the gold used) unless you add some finer
content gold to the piece to make up for the lower carat solder being used.
You don’t want to make too much and you’ll have to experiment with relative
amounts, melting temp etc.

Charles

B

Hi Brandeil,

Here in Brazil is not so easy as in USA or other countries. There’s no stores or
retailers, then we neeed to produce our own solders. I have many solders alloys
formulas, some of them I devenloped by myself sometimes using empiric method.

The problem, as Charles said, is get the same karat and color of the original
alloy you intents to solder.

Here’s an 18 k solder formula for 18 k red gold:

   - gold(999.9)     -  75,0 %
   - Silver(999.9)   -   5,0 %
   - Copper          -  12,0 %
   - Zinc            -   6,0 %
   - Cadmium         -   2,0 %

18 k red gold solder alloy - 100,0 %

You must take care with the meltig points. Follow this steps:

    • Using a torch in a ceramic crucible Melt the gold + silver + copper.
    • After this pre-alloy is melt, take of the torch and wait it get solid.
    • Using a plier or other tool, take of that solid but still hot piece of
      metal from the crucible.
    • Put the Zinc+cadmium(in small square pieces) inside the crucible under
      the pre-alloy piece.
    • Reduce the flame torch to a “soft” flame, then melt the pre-alloy again
      slowly. Using this process, the zinc and cadmium(low melting points
      metals) won’t burn.

Christo Kiffer
@Christo_Kiffer

4

Hi !
Thank you for your
I am particularly looking for Red Solder, its a special order in my area.
I agree its better to by the sil/low kt. but I would like to make 18k and
the red.

have Fun
Brandeil

5

Hi !
Thank you very much, this will help allot. will replacing the copper (12%)
with silver make green solder ( I like green gold as well)

Thanks Again
Have Fun
Brandeil

Hi Brandeil,

Here in Brazil is not so easy as in USA or other countries. There’s no
stores or

6

brandeil wrote:

Hi !
Thank you for your
I am particularly looking for Red Solder, its a special order in my area.18K desired…
Weigh
using the standard alloy you use for your 18K rose and remove half of
the weight you need and replace it with copper shot or any form of
good copper and a bit of silver solder or the like…Some jewelry supply
stores do keep alloys for solder making on hand.You may want try just
using pure copper instead of the commercial alloy to make up the 25
percent…Gavin…