The solder balls up and does not spread evenly across the foil. I applied more flux, but the solder still balls up. What am I doing wrong?
Md Ariful Islam
বিএসসি(সিএসই)
,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
Sweat and oil from hands can tarnish the foil. Test a piece of the foil with solder. Flux is supposed to clean the surface, but if there is contamination, it cannot clear the surface. Try scrubbing the surface with a nail file/emery board and wipe off with alcohol. Get new foil if this does not work on the test foil.
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