Everlast 50-300 Low Temperature H2S/CO2

Everlast 50-300 Low Temperature H2S/CO2

Everlast 50-300 is a synthetic valve lubricant/sealant formulated for use in highly corrosive, low temperature services. Everlast 50-300 should be used in plug valves and ball valves handling dry gasses including natural gas, manufactured gas and LP gasses, carbon dioxide, sour crude and gas, salt water, hydrocarbons, acids or caustic solutions. 50-300 is a tenacious filmer to metal surfaces and will protect valve parts from the corrosive effects of oil and gas production and processing. 50-300 is excellent body filler in gate valves where hydrocarbon resistance is important and corrosion protection is critical.


For use in plug, ball, and gate valves in low temperature environments. Suitable for use in hydrocarbon gasses.

DO NOT use in oxygen service.


  • Outstanding low temp performance
  • Water insoluble and washout resistant
  • Fully additive treated
  • 100% synthetic
  • High metal adhesion
  • Excellent corrosion resistance

Physical Properties

  • Consistency, Cone Penetration (D-217) 220 to 260
  • Dropping Point, °F (D-566) – none
  • Oil Separation, % wt. Loss, (D-1742) – 5 max
  • Oxidation Stability, (D-942) – 10 max
  • Rust Prevention, (D-1743) – pass
  • Temperature range: -50 to 300°F
  • Color – dark gray
  • Corrosion Inhibitor – Imidazoline Derivative
  • EP Additive – Diester Type

Product Code – 50300