1.-
An adequate lubrication:
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Friction reduction. |
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Minimized wear. |
2.-
Protection against corrosion.
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Water
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Contaminants: Dust, chemical agents, etc.
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3.-
Strength against changes in the structure or consistency, and good mechanical stability.
4.-
Strength against centrifuged and fluid loss.
5.-
Compatibility with sealing materials.
6.-
Adequate properties for the required application.
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