Fluids - Oil and Grease



This grease in NOT for ground glass stopcocks. This grease is for borosilicate manifolds with Teflon and o-ring stopcocks.
O-Ring Grease
  • Apiezon "M" grease.

  • For over 80 years, Apiezon high vacuum greases, vacuum sealants and lubricants are favored around the world because of their quality, consistency and excellent performance in vacuum applications.

  • Commercial grade.

  • Non-silicone base ultra high vacuum o-ring grease.

  • For Viton O-Rings

  • Small vial - will last a lifetime.

$74.95 ea.

Item #: 96014

Call to Order!


Vacuum Pump Oil
  • Commercial grade.

  • For direct drive pumps

  • General purpose hydrocarbon vacuum pump oil.

  • Molecularly distilled for reduced backstreaming and excellent vapor pressure.

  • Amount: 1 ltr.

$49.95 ea.
Call to Order!

Item #: 95992



U-Gauge Oil
  • Commercial grade.

  • Dibutal Thalate.

  • Amount:  20cc

$19.95 ea.
Call to Order!

Item #: 96044

AMOUNT OF OIL:   There is no set amount of oil that has to be put into the U-gauge. But it needs to be enough so that if a neon unit is filled to 20mm pressure, the oil in the U-gauge does not go past the bottom of the U-tube, which would cause the fill gas (or air) to bubble up the right side of the gauge. If this happens it does not cause any permanent damage, but will delay accurate readings until the oil drains down the tube and settles again.


Diffusion Pump Fluid
  • Commercial grade.

  • Dow Corning 705, aka DC705.

  • Amount:  50cc


  1. Dump out all of what’s in the pump now (recycle responsibly).

  2. Add all the new oil in the bottle - it’s the correct fill for the diffusion pump. 

$53 ea.
Call to Order!

Item #: 95991