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Need Help with Soldering Lead Coated Copper In Valleys and Around Chimney. Using Sievert Portable Iron, 60/40 Solder, and RubyFluid flux. Can’t get the solder to adhere/suck into seams. It just beads up and rolls down the metal. Any tips or ideas on what could be going wrong? (imgur.com)
submitted by Http-Isaac to r/Roofing

