During Installation chances are the installation lubricant will come in contact with sealing faces.
Once a PTFE or Silicone based product touches the seal faces, it is nearly impossible to remove.
When
the pump is started, the PTFE or Silicone draws the carbon from the
primary ring and smears this material on the face of the mating ring,
causing a buildup which eventually destroys the seal.
U.S.
Seal Lube is a water based formula specifically designed to lubricate
rubber, making the installation of mechanical seals fast and easy.
It provides a high degree of lubricity to all rubber components.
It
maintains its wetness for a short period of time. But unlike PTFE or
Silicone based lubricants which penetrate the elastomer and never allow
the elastomer to grip the shaft or bore, U.S. Seal Lube evaporates.
Once
the evaporation takes place the component is dry to the touch. The
lubricity is gone and will not return, even in the presence of moisture.
Your seal is now locked in place