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Old 11-15-2012, 12:34 AM
squirrel squirrel is offline
Motorized Bicycle Senior Member
Join Date: Dec 2010
Location: hills of northern cali
Posts: 60
Default Re: Working with copper

this whole thread has me rethinking the exhaust on my rebuild.
i have the chrome sbp expansion chamber, i used copper and quicksteel epoxy to piece it together. it has since vibrated apart and currently the wrap holds it together. i was planning on having a friend of mine weld it up properly for the rebuild but now i think ill look into real silver solder and mapp gas. i have some experience soldering copper with silver solder from art school. we used a "pickle" to clean the copper after annealing. it was a liquid we kept hot in crockpots. it would turn blue as it got old from the dissolved copper. if steel went into it it would become a copper plating solution...although not permanent like electroplating...
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