THOUGHTS ON DFL COATINGS. FLUKE OR WORTH IT?

[bob1111]

We have looked at adding DFL coatings to a few high wear parts. It requires that we lightly blast the materials with Al02 before coating. The main component in DFLs is Moly (same think in oil!) Just curious if these coatings are a marketing scam? I really do not want to waste my time and cost of adding a coating that does nothing..

has anyone tried them in a high wear situation?

 

[tbuelna]

bob1111,

DFL's can be very effective when used appropriately, and are not a marketing scam. There are many types of DFL's, although moly disulfide is one of the more common.

You didn't define what a "high wear situation" is, so I can't say whether a particular DFL might be suitable. The quickest way to check if a particular DFL is suitable is by a simple PxV analysis. The manufacturer of the DFL will provide you with the DFL's PV capability.

Take a look here for some basic information:

http://www.dynamiccoatingsinc.com/presentation.htm

Good luck,
Terry

 

[TVP]

As Terry said, DFL coatings are routinely used, and are not a scam. Whether or not they are appropriate for you specific application depends on the stresses, environment, etc. Molykote from Dow Corning is one of the higher performing options.

 

[metman]

DFL = Dry Film Lubricant?

 

[ornerynorsk]

yes