VITROLUBE NPI-14

This lubricant contains MoS2 and graphite as the lubricating pigments, and phenolic resin as the binder system. The MoS2 to graphite ratio and the ratio of lubricating pigments to resin is representative of what was classed as a “good” lubricant in the series of round-robin tests conducted in the late 1960s to establish a technique for measuring wear life of bonded solid lubricant coatings using the Falex Pin and Vee Groove tester. This technique was subsequently released as ASTM specification D2625-69 and is the technique specified in military specifications MIL-L-8937 and MIL-L-46010. The nominal thickness of this lubricant is 0.0002 to 0.0005 inches and it is cured for 1 hour at +300°F. Although this lubricant is representative of the first bonded lubricants to be used, it is still the type approved by a number of companies for many applications which is the reason that NPI continues to offer NPI-14 to our customers.