Stannol flux cleaning pen flux ex 500 stannol 860215 stannol flux ex 500 has been developed mainly for cleaning circuit boards after soldering using normal soldering methods it is also suitable for numerous other applications like soldering frames stencils sieves and electronic components boards cleaned with flux ex 500 fulfill the highest demands for reliability and can if needed be coated with a protective paint stannol 860215 cleaning pen flux ex 500 1 piece