Calcium greases are made by chemically reacting hydrated lime with tallow fatty acid in the presence of mineral oil. They are smooth and buttery in texture, have excellent water resistance, a fair mechanical stability, are easy to apply and have melting points just under the boiling point of water.
Their lower temperature characteristics are governed by the mineral oil. Their maximum temperature is usually limited to about 65 °C, while they may survive 95 °C for short periods of time.
Applications are found in the automotive and farm industries. Other uses include chassis lube, mine car grease, fifth wheel grease, track roll grease and water pump grease.
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