Tech Grade 99.9% Ultra Pure Isopropyl Alcohol is an excellent general all-purpose electronics cleaner for a wide range of technical applications and sensitive surfaces. Safe on plastics and other sensitive materials, Puretronics Tech Grade Isopropyl Alcohol has moderate evaporation rate, leaves zero residue and is non-corrosive and ozone friendly. Recommended for removing flux residue, light oils, polar soils, oxide particles and other contaminants where optimum surface cleanliness is desired.