Rapid 6040 tinlead flux cored solder wire rapid 85 0615 a 2kg reel of high grade 18swg solder wire containing 60 tin and 40 lead available in a wide variety of diameters and reel sizesrapid 6040 tinlead solder wire provides excellent solder joint reliability superior joint strength and excellent thermal and mechanical fatigue resistance it has a rosin activated flux which requires little cleaning after making the solder joint it is ideal for use in applications requiring good activ