XHT-SX
  • XHT-SX

  • Description :

    Krytox XHT-S and XHT-SX greases are special high temperature greases with low oil evaporation that provide long bearing life and are compatible with most elastomers and plastics. These greases provide excellent lubrication over a broad temperature range, but are designed to work best at temperatures over 200 °C (400 °F).

    Lowest viscosity grease in the XHT-S Series.

Grade Thickener Viscosity (cSt) @ 40°C Viscosity (cSt) @ 100°C Viscosity (cSt) @ 200°C Anti-Corrosion Additive
XHT-S PTFE 500 46 6.8 No
XHT-SX PTFE 738 65 8.8 No
XHT-AC PTFE 500 46 6.8 Yes
XHT-ACX PTFE 738 65 8.8 Yes
XHT-BD Non-melting 500 46 6.8 No
XHT-BDX Non-melting 738 65 8.8 No
XHT-BDZ Non-melting 1023 88 11.4 No

 

  XHT-S XHT-SX
Estimated Temperature Range    
°C (-200-300) (-10-300)
°F (-4-572) (14-572)

Syringe

Tube Jar Cartridge

Pail

0.5 oz.

2 oz. 0.5 kg 0.8 kg

5 kg

1 oz.

4 oz. 1 kg  

7 kg

2 oz.

8 oz.    

20 kg

  • Bearings
  • Paint plant conveyor bearings
  • Corrugator and paper machine bearings
  • Aluminum can manufacturing bearings
  • Welding machines
  • High temperature fans
  • Textile equipment
  • Tenter frames
  • High temperature ovens
  • Conveyor systems in glass and aluminum plants
  • Textile calender roll bearings
  • Brick kiln car bearings
  • Valve lubrication
  • Ventilation fan bearing grease
  • Rod mills

Krytox XHT-SX grease is a special high temperature greases with low oil evaporation that provide long bearing life and are compatible with most elastomers and plastics. These greases provide excellent lubrication over a broad temperature range, but are designed to work best at temperatures over 200 °C (400 °F). Krytox XHT-SX grease is nonflammable, oxygencompatible, chemically inert, and provide extended lubrication intervals and longer equipment life.

The Krytox XHT-SX grease is an extension of the Krytox GPL 240 series and Krytox GPL 20X series, but are designed to give higher performance in the 204–302 °C (400–575 °F) range. Krytox™ XHT-S series greases should be used below 320 °C (608 °F), where the polytetrafluoroethylene (PTFE) thickener could begin to melt. The base oil is an extremely viscous oil that provides good viscosity and lower evaporation at high temperatures. Krytox XHT-SX grease contains no additives, so they are used when a potential for interaction between process chemicals and grease additives exists.

Krytox grease is made to a standard NLGI grade 2. PTFE is the standard thickener.

Typical Applications

Applications for these lubricants are generally of a critical nature, such as when temperatures reach extremes that conventional lubricants cannot handle. Krytox™ XHT-S and XHT-SX greases are expected to be durable in highly aggressive environments. Where failure of components is not an option, because of durability, warranty, safety, loss of productivity, or downtime, Krytox™ lubricants are the ideal choice in a wide range of industries and applications.

Compatibility with Metals
Because of their low surface tensions, Krytox lubricants easily wet metallic surfaces. Krytox lubricants are chemically inert and, therefore, have no adverse effect on metals when the temperature is below 288 °C (550 °F). Above 288 °C (550 °F), many alloy steels, stainless steels, and other metals, such as aluminum alloy, titanium alloy, nickel alloy, and cobalt alloy, can be used with Krytox lubricants.

XHT PDF 

Technical Data Sheet

Download File

NSF H-1