I know using flux makes some residue which makes unwanted contacts between components pins. I dont have any washing liquid or spray to remove it so i simply decided to not use them.
But my solder wire has a solid flux layer. while soldering with it, some melted flux splashes around, makes some white smoke too.
After soldering is done, two separated material remains on board
First a glassy solid residue which will break under pressure like sugar!
Second some greasy appearance around soldered areas.
Unlike lotfett soldering grease its residue is not conductive. However i don't know much about it just tested myself.
I need to know about this material. Shall i remove it? Is there any way to remove it from the board?.
I created this question to be some kind of reference for the mentioned product.