Thanks to the highly wettable active ingredients, solder flows and adheres beautifully along the copper tape! ♪(^^) This is a powerful 100cc capacity type. It's used in our atelier, of course, and also in classrooms nationwide (^^) Please note that we offer contactless delivery and will ship in a thin container for postal drop-off. (See the second image) #stainedglass #AtelierGiovanni #suncatcher #handmade #flux #solder #coppertape #edco #antiquepatina #blackpatina #nanocoatplus