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Hi Chris,Looking at the photo you posted there are lumps and balls of solder showing, that is usually a sign of not enough heat and flux. I have used the 15% silver solder a couple of times to fix pinhole leaks. Usually hit it with a punch to move the metal over the hole then the solder to cover and reseal it.Regards,Gerald.
Hi Chris,The main solder I use is 45%silve, the patching one is only 15% and barely qualifies as a hard solder. The 15% melts at a much lower temperature.Regards,Gerald.
hi. Something one should be aware of is that when you silver solder copper at a certain temperature, is ,that the solder actually mixes with the copper thereby creating an alloy that includes some of the copper !! this is why it is quite difficult to remelt the solder at the joint to "mend" any leaks. but i think we do already know this !! Keep up the good work btw and am looking forward to the next project............W......
I picked the 15% silver solder at a jewelry supply. I think they had a large spool of it, which they packaged is small baggies, all it had was a notice above the bins that gave the %, weight, Temperatures and the price per gram. Unfortunately they decided to only sell to Jewelers and not sell to the public.Regards,Gerald.
Hi Chris,I am not too sure, my soldering equipment is still packed in the garage from the move.I have attached the Harris Guide, it may have been the Stay=Brite, which on page 18 says Stay-BriteŽ is a eutectic alloy with a single melting point of 430°F (221°C). Stay-BriteŽ 8 has a solidus of 430°F (221°C) and a liquidus of 535°F (279°C). This melting range provides the ability to fill wider clearance parts.Here is a link for Harman and Handy http://www.silfos.com/htmdocs/product_support/alloy_selection_guide.htmlWhich also lists different products.I have used products from both of them, It is often which one I can get too.I have also used Wolverine products from welders supplies, which is usually the easiest to find.Regards,Gerald.file:///C:/Users/Owner/AppData/Local/Packages/Microsoft.MicrosoftEdge_8wekyb3d8bbwe/TempState/Downloads/GuidetoBrazingandSoldering.pdfIt is not attached in above link, tried to load with attachment and it would not post.
Gerald, I suspect the .pdf exceeded the new file size restriction. If you can split it into multiple parts and post each part separately it should work. Or you can send the file to the email address in my profile and I will split it for you tomorrow and upload to your original post.Bill