Article-No: 022121 Special grease for drinking water, beverage and heating valves

UNISILKON L 641 is a special lubricating grease based on silicone oil and PTFE for valves and other elements in the heating, beverage and sanitary sector. UNISILKON L 641 offers good penetration ability in small lubrication gaps and lube points of difficult access. As its viscosity is rather independent from service temperatures, UNISILKON L 641 allows constant actuating forces within the whole cold/hot water range of single-lever mixer taps. Due to its chemical composition, UNISILKON L 641 has shown to be resistant to various substances in the food-processing and beverage industries like beer, milk, juices, liquors, acid and alkaline disinfectants. UNISILKON L 641 is not compatible with most organic solvents as well as acid and alkaline solutions.

UNISILKON L 641 is NSF H1 registered and therefore complies with FDA 21 CFR § 178.3570. The lubricant was developed for incidental contact with products and packaging materials in the food-processing, cosmetics, pharmaceutical or animal feed industries. The use of UNISILKON L 641 can contribute to increase reliability of your production processes. We nevertheless recommend conducting an additional risk analysis, e.g. HACCP.


Benefits for your application

  • Excellent wetting power

  • Operational smoothness due to a good viscosity-temperature behaviour

  • Very good resistance to water and water vapour

  • High thermal stability

  • Good sealing effect

  • Neutral towards metals, many elastomers and plastics

  • NSF H1 registered

  • Tested acc. to BWGL-KTW (UBA guideline), WRAS, ACS and NSF/ANSI/CAN 61 as well as DIN-DVGW-type examination certificate acc. to DIN EN 377 class E (…160 °C) as lubricant for application in equipment and actuators for fuel gases

Get in touch

We look forward to receive your message!

For further information about the processing of your data using the contact form, please refer to our privacy policy.