Mixing different types of greases

When you start to use a new grease in an application, it is important to know whether the new and the old grease are compatible. This depends on whether the thickener and/or the base oil can mix with each other. A number of things can happen when two different greases are mixed:

• Nothing, i.e. the two greases are miscible
• The grease mix hardens, which can be devastating in, say, a central lubrication system
• The grease mix softens. The soap structure is broken down and the greases are not miscible. This can cause leakage and bearing failure
• We can help with miscibility tests ahead of product changes to avoid problems in advance. Feel free to contact us if you need help.