Everlube 620

Everlube® 620 is a molybdenum disulfide and graphite based solid film lubricant in a thermally cured organic binder system. It reduces wear, offers high load-carrying capacity and a low coefficient of friction, and prevents galling and seizing. It has very good chemical resistance and is suitable for medical ISO 10993 bio-compatibility testing. It is approved/qualified to many aerospace and industrial specifications; the specification and revision should be stated when ordering. It is used on fasteners, surgical instruments, dampers, tubes and tracks, and threaded connectors and disconnects.

Physical Properties

• Lubricating solids MoS2 and graphite; binder high molecular weight phenolic; solvent borne
• Grey/black matte; solids 35–39% (by weight); density 1102 ± 60 g/L
• Flash point 3 °C; VOC 695 g/L; theoretical coverage 13.3 m²/L at 12.7 µm

Processing

• Dry film thickness 5–18 µm; dilution ratio product:solvent 1:1 to 1:3 (600 Solvent or 50/50 ethyl alcohol and toluene)
• Cure 1 hour at 149–191 °C; pretreatment grit blast and/or phosphate; dip spin or spray

Functional Properties

• Coefficient of friction 0.04–0.06 (ASTM D2714); wear life 120 min
• Operating temperature −73 to 204 °C; passes film adhesion and 500 hour aluminium corrosion tests

Storage

• 1 year from shipment in a factory sealed container at 4–38 °C