FL is a flux brush designed to be used in the preparation of printed circuits prior to soldering an SMD component, especially flat pack integrated circuits.

It can hold up to a capacity of 5.5 ml of flux.

All you need to do is fill the barrel with the flux. Our pens have a retractable valve in them so you have complete control of how much flux you release by gently squeezing the barrel.

FL is supplied without flux.