Surclean SPL-15 Solder Paint is a homogenous mixture of fine powdered Tin/Lead alloy suspended in a highly active Zinc Chloride cream base. The cream base contains suspension agents that helps to prevent the metal from settling out, and avoids excessive stirring. SPL-15 is formulated to allow rapid joining and wetting of a wide variety of solderable metals, Including mild steel. It is ideal for applications where the use of Tin/Lead solder alloys is permitted, and a lower melting point is desirable. The post solder residues are easily removed with water.