MOLYKOTE High‑Vacuum Grease 150 g Silicone Lubricant for Vacuum Pumps, O‑Rings & Seals

About MOLYKOTE® High Vacuum Grease

OVERVIEW:

MOLYKOTE® High Vacuum Grease is a silicone-based grease specifically formulated for sealing and lubricating applications in high-vacuum systems and environments. It offers excellent low vapor pressure, high temperature stability, and good material compatibility, making it suitable for use on ground glass joints, vacuum fittings, O-rings, and seals. This product is widely used in laboratory, semiconductor, and industrial vacuum equipment where maintaining vacuum integrity is critical.

KEY FEATURES:

Low Vapor Pressure
Formulated to maintain low outgassing and vaporization under high-vacuum conditions, supporting vacuum system stability.

Wide Operating Temperature Range
Performs effectively from approximately -40°C to +200°C, helping to maintain sealing and lubricating properties under varying thermal conditions.

Excellent Sealing Properties
Provides reliable sealing of joints and fittings to prevent gas leakage and moisture ingress.

Good Material Compatibility
Compatible with metals, glass, ceramics, and many elastomers, reducing the risk of material degradation.

Non-Melting
Remains stable and does not melt at elevated temperatures, contributing to long-term performance in demanding environments.

APPLICATIONS:

• Laboratory Vacuum Equipment – Sealing and lubricating ground glass joints, stopcocks, and vacuum system components.

• Semiconductor Manufacturing – Used in vacuum chambers and equipment requiring minimal outgassing.

• High-Vacuum Systems – Suitable for seals, O-rings, and gaskets used in pumps, fittings, and connections.

• Optical and Precision Instruments – Provides sealing and lubrication in delicate equipment exposed to vacuum or controlled atmospheres.

• General Industrial Use – Applied in vacuum and pressure systems across various industries where gas tightness and material compatibility are required.

PACKAGING:

MOLYKOTE® High Vacuum Grease is typically available in small tubes (e.g., 150g), 1kg jars, and larger containers depending on regional availability and application needs.

INSTRUCTIONS FOR USE:

• Surface Preparation: Clean surfaces thoroughly to remove dust, oil, and previous residues to ensure optimal sealing and performance.

• Application: Apply a thin, even layer of grease to sealing surfaces such as O-rings, gaskets, and glass joints.

• Maintenance: Inspect periodically and reapply as needed based on system maintenance schedules and operating conditions.

SAFETY AND HANDLING:

MOLYKOTE® High Vacuum Grease is generally safe when used as intended. Avoid contact with eyes and prolonged skin exposure. Use in a well-ventilated area and follow standard industrial hygiene practices. Refer to the product’s Safety Data Sheet (SDS) for complete safety, handling, and disposal guidelines.

DISCLAIMER:

The information provided is intended for general reference only. Actual product performance may vary depending on materials used, application methods, and specific operating conditions. Users should consult the official technical datasheet and SDS to verify suitability for their specific application.