MOLYKOTE® Thread Pastes

P 37

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Type Ultra-pure solid lubricant paste for bolted connections. Formulation free of metal, sulphur, chlorine and fluorine.
Typical applications Bolted connections made of heat resistant steel, particularly on gas and steam turbines in power stations including nuclear power stations.
Properties
  • High purity (less than 500 mg of metal and metal alloys, less than 200 mg each of sulphur, chlorine and fluorine per kg lubricant
  • Temperature stable up to 1400 °C
  • Coefficient of friction in the range of oiled bolts
  • Low scatter of prestressing force on tightening
  • Avoidance of stress cracks and solder brittleness
Physical/chemical data
Colour Greyish black
Composition
  • Solid lubricants
  • Part-synthetic oil
  • Thickener
  • Adhesion improver
Consistency, density
Unworked penetration, mm/10 280 - 310
Density at 20 °C, g/ml 1.2
Temperature
Service temperature range,°C -40 to +1400
Load carrying capacity, wear protection, service life
Four-ball tester (DN 51350 pt. 4)
Weld load, N 4400
Almen Wieland machine, OK load, N 17500
Coefficient of friction
in bolted connection M12, 8.8, with blackened surface (Erichsen tester)
µ thread 0.15
µ head 0.09
Resistance
Water resistance, static (DIN 51807 pt. 1), evaluation 1 - 90
Storage life, years 5
Technical data sheet, no. 71-0244-01
Application method Clean threads with solvent, used bolts with wire brush.
Spread paste liberally up to the root of the threads in order to obtain a good seal.
Packages Brush tin: 500 g
Container: 25 kg
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