The two most important components are the binders and lubricating ingredients.  Without a good binder the coating will not stay in place and will simply cold flow or buff off in operation.  Similar coatings using the same pigments but different binding systems can show a wide variation in load carrying capabilities, ranging from 100,000 psi to over 350,000 psi.  The pigments determine the actual lubricating potential.  PTFE, as an example, is listed as having the lowest coefficient of friction (COE).  However, under high speed  and load, the COE of PTFE degrades while that of MOS2 (Moly)  improves, until it is significantly better than PTFE.  Selecting the proper ingredients can make or break a coating.

One of the obvious reasons for using a lubricating coating is to reduce friction, which improves wear, extends part life and frees up H.P. normally lost to friction.  A second major benefit is a reduction in part temperature.  This is especially important to such parts as valve springs.  Here the pigment choice is critical as certain ingredients can trap heat in a part.   Not all coatings are created equal.  It is highly recommended  by  TECH LINE™  that coatings using PTFE be avoided in these cases. 

Please contact our   TECHNICAL DEPARTMENT   before choosing a dry film lubricant.