1 Ltr. Soldering Flux comes in a safe pack of plastic bottle which is durable and easy to kept anywhere. It is basically to use for fitting purpose and setting the temperature working applications in an efficient manner. This flux is mainly helpful in aluminium and soldering applications to melt the surface effectively. 1 Ltr. Soldering Flux is also useful in zinc, metal, tin, iron and other materials. It prevents from electrolytic and leakage problem.