SANTOVAC 5 and 5P Ultra are polyphenyl ether synthetic diffusion pump fluids capable of producing ultra high vacuum in the 10^-10 torr range.  Due to this fluid's extremely low vapor pressure, backstreaming characteristics are lower than any other fluid resulting in less contamination and longer operation.  SANTOVAC 5 is and SANTOVAC Ultra are ideal for use in many applications including laboratory, analytical and research operation, vacuum production, thin films, space simulation chambers, and optical coatings.   SANTOVAC 5P Ultra undergoes an additional vacuum distillation step to further reduce the 3-ring and 4-ring ether concentration to below 0.02% and 0.1% respectively. A smooth baseline without mass signatures corresponding to 3 and 4 ring polyethers is important in mass spectrometer applications.

Other major advantages beyond an ultra high vacuum are the following:

• SANTOVAC 5 and 5P Ultra are very pure fluids and as a result vacuum chambers and components remain cleaner, therefore, this results in less system maintenance and downtime.

•  SANTOVAC provides "extremely low backstreaming" due to the inherent properties of this fluid.

•  The high vacuum properties and low backstreaming properties will result in designing a system that does not require liquid nitrogen traps and baffles and ultimately allows for greater pumping speed and a much more efficient vacuum system.