A piston ring coating with Silver Lead Indium is often used in applications when reducing friction and increasing start-up lubricity is critical, and is ideal for heavy duty applications.


  • Military Truck Engines
  • Semiconductor Engines
  • Aircraft/Aerospace Engines
  • Diesel Engines
  • Bearings
  • Ideal for Most Heavy Duty Applications


  • High Hardness
  • Does Not Work-Harden
  • Very Ductile
  • Corrosion-Resistant to Oil Acids & Acids in Lubricants
  • Improves Retention of Bearing Oil Film
  • Corrosion-Resistant to High Pressure Water up to 690F
  • High Thermal Expansion


  • If you have a heavy duty application that requires a piston ring coating with Silver Lead Indium, turn to the piston ring manufacturers at Grover Corp. We’ve been providing standard and custom piston rings for a wide variety of industries and applications for nearly 100 years

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