Molykote 55 O-Ring Grease 1KG Silicone Lubricant for Rubber Seals
MOLYKOTE 55 O-Ring Grease Silicone Lubricant
Product Overview
MOLYKOTE 55 O-Ring Grease is a silicone-based lubricating grease developed for applications involving rubber O-rings, seals, packings and metal-to-elastomer interfaces. Formulated with a lithium soap thickener, this NLGI Grade 2 grease helps lubricate sealing surfaces, reduce friction during assembly and operation, and support reliable sealing performance.
Its wide operating temperature range of -65°C to +175°C makes it suitable for selected applications exposed to varying thermal conditions. The grease also offers heat stability, oxidation resistance and corrosion protection, supporting the maintenance of sealing components in pneumatic systems, automotive equipment and industrial machinery.
As a specialized O-ring grease, MOLYKOTE 55 is designed to interact with certain elastomer seals and may cause slight swelling in compatible rubber materials. Material compatibility should always be confirmed before use.
Key Features and Benefits
O-Ring Lubrication: Helps reduce friction during installation and movement of rubber O-rings and sealing components.
Sealing Performance: Helps support effective sealing at metal-to-elastomer interfaces.
Wide Temperature Range: Suitable for applications operating from -65°C to +175°C.
Thermal Stability: Formulated to maintain lubrication performance under varying temperature conditions.
Oxidation Resistance: Helps maintain grease performance during service.
Corrosion Protection: Helps protect relevant metal surfaces against corrosion.
Material Compatibility: Suitable for selected elastomers and plastics, subject to material-specific compatibility testing.
Technical Specifications
Product Name: MOLYKOTE 55 O-Ring Grease
Product Type: Silicone-Based O-Ring Lubricating Grease
Base:Silicone-Based
Thickener: Lithium Soap
NLGI Grade:2
Color:Off-white
Texture: Soft, tacky and cohesive
Operating Temperature: -65°C to +175°C
Primary Function: O-Ring Lubrication and Seal Protection
Typical Materials: Selected rubber seals, elastomers and plastics
Typical Applications
Pneumatic Systems
Used for lubricating compatible O-rings, seals and packings in pneumatic equipment to facilitate assembly and support sealing performance.
Automotive and Industrial Equipment
Suitable for selected sealing components in valves, housings, fittings and industrial machinery where silicone-based O-ring lubrication is specified.
Aerospace and Aircraft Maintenance
May be used on approved sealing components in applicable pneumatic and other systems, provided the lubricant meets the equipment manufacturer's requirements and relevant aerospace specifications.
Metal-to-Elastomer Interfaces
Designed for applications where rubber sealing elements contact metal surfaces and require lubrication during installation or operation.
Material Compatibility and Precautions
Confirm compatibility with the specific elastomer and plastic before use.
Avoid use with silicone rubber (SR), polycarbonate (PC) and ABS unless compatibility has been established through testing or approved technical guidance.
Do not mix with other greases. Clean the application surfaces appropriately before applying the product.
Do not use with strong oxidizers, including liquid oxygen, unless the complete application has been specifically evaluated and approved. Silicone-based grease should not be assumed suitable for oxygen service.
For aerospace, automotive safety-critical or other regulated applications, follow the equipment manufacturer's lubricant specifications and approval requirements.
Why Choose MOLYKOTE 55 O-Ring Grease?
MOLYKOTE 55 O-Ring Grease combines silicone-based lubrication with a lithium soap thickener to support sealing applications requiring low-temperature performance, thermal stability and reliable friction control. Its specialized formulation makes it an option for compatible rubber seals and O-rings in pneumatic and industrial equipment.
If you are sourcing Molykote 55 silicone grease for O-ring maintenance, verify the seal material, operating temperature, service medium and equipment requirements before selecting the product.
Note: Refer to the latest manufacturer technical data sheet for the official specifications, approved applications and compatibility recommendations.
