Design Engineering

Technical information

 
 

Base material properties:

Most solid film coatings/lubricants have a base material (pigment) and many are a combination of different base materials to meet a particular application need. Three of the most commonly used base materials in solid film coatings/lubricants are outlined below. This information should help you better understand which base material is right for a particular application.

Solid Film Coating Base Material
Strength
Weakness
Molybdenum Disulfide
(MoS2)
Extreme High Load Carrying Capability 100,000 PSI + (689,476 kPa) Moisture Detrimental to performance
  Lubricates under hard vacuum Generally not suitable for highly radioactive environments
  Extremely wide temperature range. Cryogenic to 750° F (399° C) in air or
1200° F (649° C)
(in inert environment ).
Begins to Oxidize at 750° F in air
  Extremely Low coefficient of friction
(.03 to .06)
Not a good lubricant at extremely light loads
Graphite Extremely Low Coefficient of Friction (.02 to .06) Typically provides very poor corrosion resistance
  Lubricates from extremely light loads to 40,000 PSI
(275,790 kPa)
Some moisture and air must be present for proper lubrication
  Has extremely wide temperature range from cryogenic to 1200° F (649° C)
in air or over 2000°F
(1093° C) in inert environment
Rarely used for cosmetic coatings
Fluorinated Polymers Very low coefficient of friction. Extremely light loads to 10,000 PSI (68,948 kPa) Has fairly limited temperature range -150° F (101° C) to
500°F (260° C)
  Highly chemically inert Suitable only for low speed applications
  Electrically non-conductive  
  Can be incorporated into very corrosion resistant coatings  
  Lubricates without shedding