LOCTITE Cleaners and Primers are used to prepare the surface before LOCTITE adhesives are applied on them to ensure maximum performance. Bonded joints are stronger when the surfaces are thoroughly cleaned. Cleaners help remove oil, grease, dirt, grime or impurities from the surface. Primers activate surfaces for LOCTITE anaerobic adhesive applications for threadlocking, thread sealing, gasketing and retaining, to significantly speed up the cure time.