Mag Media / Disk Lube

Hard disk media (Mag Media) is basically composed of a layered magnetic alloy stacks for information storage, a protective layer that guards against impact and corrosion of the magnetic media, and a top lubricant layer that reduces friction and wear.

After the various sputtered layer depositions, a microscopic (approx. 2nm thick) layer of lubricant is applied by dipping the disk into a solution containing a lubricant in solvent, spin coating or vacuum vapor deposition.

The lubricant is typically composed of a PFPE perfluoropolyether (similar to Teflon™) polymer. This layer is then partially cured to stabilize the amount of bonded and unbounded material on the disk surface via thermal or UV curing. 

Fluorinert™ and Novec™ fluids have been used for years in this application.  The inertness, compatibility with PFPE based lubes (Fomblin™ and Krytox™), and rapid evaporation, makes Fluorinert and Novec perfect choices as a diluent. 

Further the 3M fluids are excellent choices for 'Plate Lubrication' for Christo-Lube™,  Krytox™ and Fomblin™ PFPE based lubricants.

AMS - 3M - Finger Print HFE-7100 Formulas

AMS - 3M - Finger Print Ninhydrin

AMS - 3M - Finger Print Wetting