jonathan1138
Active member
When soldering old boards - whats that stuff that comes up?
Hi - quick question i hope.
On old boards, when reflowing solder around the joint this dirty (brown) stuff rises around the joint sometimes - is that old flux? What is it?
Sometimes it feels like too much of it rising has a chance of tearing up the trace (therefore i pull back on the heat).
Hi - quick question i hope.
On old boards, when reflowing solder around the joint this dirty (brown) stuff rises around the joint sometimes - is that old flux? What is it?
Sometimes it feels like too much of it rising has a chance of tearing up the trace (therefore i pull back on the heat).

