• Enhanced ability to solubilize flux residues
• Easily cleaned in water
• Effective for both rosin and water-soluble flux chemistries

A highly concentrated liquid cleaner which is added to water to make a non-foaming solution for removing rosin flux residue. Eliminates the need for expensive, toxic and environmentally harmful solvents traditionally used for flux removal. The alkaline chemicals in Kester 5768 react with rosin by a chemical conversion known as saponification to form soaps which are water-soluble. The resulting rosin soap and any water-soluble residue, such as activator salts, can then be rinsed away with water. Kester 5768 possesses enhanced ability to solubilize unsaponifiable material that is normally present in rosin and in additives used in some flux or solder paste formulations. This assures excellent visual and ionic cleanliness of circuit boards after cleaning. Kester 5768's stable composition during use at elevated temperatures allows it to be used for extended periods of time. This results in less frequent discharge of the wash tank for replacement with fresh solution and in a process cost reduction. Unlike other saponifier products which tend to mildly etch the solder surface, Kester 5768 leaves joints bright and shiny after cleaning.