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MOLYKOTE® 55 O-Ring Grease


MOLYKOTE® 55 O-Ring Grease is an NLGI Grade 2 – Silicone based grease with lithium thickener and base oil viscosity of 76 cSt at 40°C

Product Overview

MOLYKOTE® 55 O-Ring Grease is the industry standard for lubricating metal-on-elastomer interfaces and sealing rubber O-rings & connectors.  MOLYKOTE® 55 O-Ring Grease is formulated from a high-quality silicone base oil with added synthetic ester and a lithium soap thickener.



MOLYKOTE® 55 O-Ring Grease exhibits excellent lubrication & protection in a range of industrial applications, including, but not limited to:
Rubber & Metal Surface Interaction
Pneumatic Systems & Seals in Aircraft
O-Ring Fasteners, Fittings & Seals
Industrial & Automotive Seals

Features & Benefits

Excellent Resistance to Oxidation
Gentle Swelling in O-Rings for Greater Sealing Efficiency
Robust Thermal Stability (-65°C to 175°C)
Good Corrosion Prevention
Excellent Plastic & Elastomer Compatibility

Problems Solved

Leaky, Cracked or Failing Seals
Poor Thermal Stability in Sealing Fluids & Greases
Inadequate Corrosion or Rust Prevention

Product Specifications

Base Oil Viscosity @ 40°C: 76
NLGI Grade: 2
Thickener: Lithium
Low Temp: -65°C (-85°F)
High Temp: 177°C (347°F)
Color: Off White
Base Oil: 100 cSt @ 25°C

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