Our previous discussion on modifications to the basic 1220 formula dealt only with results from our in-house testing. Since that time, other companies using different test machines and criteria have run comparative tests with the basic 1220 coating and the modified 1220C coating and have obtained increased performance similar to our in-house tests.

Of the four lubricants currently marketed by NPI, this lubricant is the most unique and widely used. Vitro-Lube is technology that was generated by the XB-70 group at the Los Angeles Division of North American Aviation, Inc. (now The Boeing Company). It was the result of a crash program initiated after exhaustive screening and evaluation which revealed that the dry film lubricant industry had not advanced the state-of-the-art to a point that would come close to meeting the requirements of the XB-70 Mach 3 aircraft.