Kluber Unisilkon L 641 500G – Silicone Lubricating Grease

Product Overview

Kluber Unisilkon L 641 is a specialized lubricating grease formulated with silicone oil and PTFE for valves, seals, and components used in drinking water, beverage processing, heating, and sanitary applications. Supplied in a convenient 500 g package, this product is suitable for industrial maintenance, equipment assembly, and precision lubrication tasks.

As an NSF H1 food grade grease, Kluber Unisilkon L 641 is designed for applications where incidental food contact may occur. It is registered for use in and around food-processing areas, subject to the applicable requirements for hygienic lubricant use.

The silicone-based formulation provides good wetting properties, water resistance, thermal stability, and sealing performance. This makes it a practical choice for equipment requiring reliable lubrication in contact with cold water, hot water, or water vapor.

Key Features and Benefits

1. Reliable Lubrication and Sealing

Kluber Unisilkon L 641 is designed to penetrate narrow lubrication gaps and reach friction points that may be difficult to access. Its good wetting characteristics help provide effective lubrication for valve mechanisms, seals, and other precision components.

As a silicone valve grease, it helps maintain smooth operation in suitable sanitary fittings and valve assemblies. Its favorable viscosity-temperature behavior also supports consistent operating forces across a range of water temperatures.

2. NSF H1 Food-Processing Applications

ThisNSF H1 food grade grease is intended for equipment where incidental contact with food may occur. Typical applications include beverage processing machinery, sanitary fittings, and suitable components used in food-related production environments.

The NSF H1 registration of Kluber Unisilkon L 641 supports its use in applicable food-processing environments. However, proper lubricant selection, controlled application, and appropriate hygiene procedures remain essential.

3. Resistance to Water and Steam

Kluber Unisilkon L 641 offers good resistance to cold water, hot water, and water vapor. These properties make it suitable for selected sealing and lubrication points in plumbing, beverage equipment, and heating systems.

As a water resistant sealing grease, it can support sealing performance in suitable valve and gasket assemblies. It also demonstrates good thermal stability and compatibility with many metals, elastomers, and plastics, although material compatibility should be verified before large-scale use.

Typical Applications

Kluber Unisilkon L 641 can be used as a sealing and assembly aid for seals and packings exposed to water or water vapor.

Typical application areas include:

• Drinking water valves and fittings

• Beverage processing equipment

• Single-lever mixer cartridges and ceramic discs

• Ball valves and sanitary fittings

• Shower switches, shower heads, and swivel spouts

• Thermostatic mixer valves and heating components

• Suitable water-hydraulic sealing applications

For applications requiring a silicone valve grease, confirm that the product is compatible with the equipment materials and operating conditions before use.

Technical Characteristics

• Product name: Kluber Unisilkon L 641

• Package size: 500 g

• Product type: Special lubricating grease

• Base oil: methyl silicone oil

• Solid lubricant: PTFE

• Service temperature range: Approximately -40°C to +160°C

Why Choose Kluber Unisilkon L 641 500G?

Kluber Unisilkon L 641 combines silicone-based lubrication with PTFE to support reliable operation in suitable valves, sealing systems, and sanitary equipment. Its resistance to water and water vapor, good wetting properties, and thermal stability make it a specialized option for demanding maintenance requirements.

If your equipment requires water resistant sealing grease for valve assemblies or water-related applications, this product may be worth evaluating against your technical specifications.

We supply industrial lubricants for a variety of maintenance and manufacturing applications. Contact us to inquire about Kluber Unisilkon L 641 500G, product availability, packaging, pricing, and shipping options.