Soldering Paste is a mixture of finely powdered solder and soldering flux combined with a suspension agent that prevents the metal settling. This prevents separate handling of solder and flux. Convenient and economical. Ideal for Tinning of car panels, bodies, radiators, copper pipes and joints etc. Solder Paste is available in 200g and 450g . See the INTRODUCTION TO BODY SOLDERING article on the Frost blog, click here... For more information, read \"How Do I Load Lead?\" and \"Ultimate Guide To Lead Loading\" from Technical Articles.