Loctite cleaners and degreasers loctite 303145 loctite sf 7039 is a contact spray cleaner formulated for use on electrical contacts exposed to moisture or other contaminants without damaging existing varnishes it leaves a water repellant residue and is typically used in applications with an operating temperature range of 30 to 50degc loctite 303145 sf 7039 parts cleaner spray 400ml