Isopropyl Alcohol 99.9% is used widely as a solvent and as a cleaning fluid. It helps to clean devices such as, disk heads, lenses of lasers in optical disc drives, contact pins, and also removes smudges dirt and fingerprints from phones and tablets. Isopropyl Alcohol easily removes glue, grease, ink and varnish. IPA helps dissolve all sorts of adhesives, making it an effective thermal paste remover and a paint thinner too.