Is that the Cold Heat product? If so, you would have to use a solder that melts at under 800 deg. fahrenheit, that is not hot enough to melt a high-strength silver solder. Try a propane or butane torch. They are inexpensive and come in a range of sizes. The temperatures can go above 3,600 Fahrenheit and will be adequate for most jewelry applications. When working on large pieces (like massive thick bracelets) a small furnace of firebrick can be erected around the piece to help contain the heat in the item. Successful silver soldering is possible because of the buildup of heat in the silver on either side of the seam to be soldered, and the melting point of the solder being used. Generaly speaking it is necessary to bring the whole piece up to an even temperature to have a successful solder at the seam.
There are solders on the market that have different melting temperatures, but for jewelry the higher the melting point the better for strength --and to match the color of the surrounding silver as the jewelry item ages and starts to form a patina.
Not very well I should imagine. The cold heat soldering tools are intended for electronics work using common lead/tin or similar soft solder which is not strong enough for jewelery making or repairs.
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Cold Heath for Silver Jewellery ?
Re: Cold Heath for Silver Jewellery ?
