It is common to clean grease and oil off of parts at a benchtop, work station, or in the field, which generally requires a manual cleaning method. Manual cleaning methods are more labor-intensive and less repeatable, so results vary from operator to operator. Aerosol – Aerosol packaging is a sealed system, which ensures fresh solvent. The spray pressure and application pattern add agitation, like a scrubbing action. A straw attachment is generally included to spray into tight areas or for focused application. Trigger spray – Spray bottles are common for water-based cleaners and isopropyl alcohol (IPA), but not for aggressive solvent cleaners. Liquid immersion – The part can be immersed in a tray or bucket of solvent cleaner, and then wipes, swabs and brushes scrub off tough soils. Heating the solvent can improve the cleaning performance, but for safety sake, should only be done with nonflammable degreasers. Presaturated wipes and swabs – For added convenience, wipes are available presaturated with a mild solvent like isopropyl alcohol.