99.9% pure isopropanol (IPA) is a powerful general purpose cleaner. Excellent for tape head cleaning, removal of fluxes, light oils, polar soils, organic and ionic residues. The presence of water is a crucial factor in destroying or inhibiting the growth of pathogenic microorganisms with isopropyl alcohol. Water acts as a catalyst and plays a key role in denaturing the proteins of vegetative cell membranes. 70% IPA solutions penetrate the cell wall more completely which permeates the entire cell, coagulates all proteins, and therefore the microorganism dies. Extra water content slows evaporation, therefore increasing surface contact time and enhancing effectiveness. Isopropyl alcohol concentrations over 91% coagulate proteins instantly. Consequently, a protective layer is created which protects other proteins from further coagulation. It can be safely used on through-hole and surface mountboards, hybrids, cables, connectors and bare boards as well as a fibre optic cleaning solvent. This material is not intended to diagnose, treat, cure or prevent any disease. The user of this material is solely responsible for determining fitness for any particular use; requesting and reviewing the applicable Material Safety Data Sheet; and compliance with all applicable laws and regulations.