• Biodegradable at pH of 2.0 or greater
• Chemically compatible with most solder masks and board laminates
• No surface insulation degradation
• No offensive odors
• Bright, shiny solder connections
• Classified as ORL0 under IPC JSTD-004 and ORM0 under IPC JSTD-004B

Kester 979VT Soldering Flux is a VOC-free, no-clean flux formulation for high quality, low-defect soldering of lead-free electronic circuit board assemblies. This flux's finely tuned activation system offers the best wetting available in VOC-free liquid flux technology and the shiniest solder joints. 979VT also reduces micro-solderballing on glossy and matte laminates and between connector pins. 979VT will not attack properly cured solder masks or FR-4 Epoxy Glass laminate. It has been specially formulated to accommodate needs of single sided board assemblers. 979VT leaves no haze or visible residue behind, including the white powdery residue associated with use of earlier no-clean formulas.