Body Lead or Body Soldering Sticks are a tin - lead alloy, which is composed to hold the \"butter\" consistency over a big temperature range while it is being spread. INTRODUCTION TO BODY SOLDERING : - First clean the area to be filled back to bare metal with a stripping disc , sanding paper etc. - Brush solder paint over an area slightly larger than that to be filled and heat the area gently until you see the solder paint tin the panel. - Remove excess solder paint with a clean cloth. - Next, melt blobs of lead onto the panel over the area to be filled. - Prepare your paddles by warming the surface of the tallow and wiping your paddle in the molten puddle. With a suitable amount of lead now deposited on the panel, heat it carefully until it can be spread like butter with your paddle. - Control heat carefully and keep spreading until body solder is evenly spread over area. - Wash with cool water to quench and to remove traces of acid solder paint. Approx 0.5kg per stick .