| Part No. | Description |
| APQ | Apiezon sealing cmpd. Q, 1000g. can. |
Sealing Compound Q is a putty-like substance. It is a relatively low cost, extremely versatile sealing medium used for a great many purposes in vacuum work where not too low a vapor pressure is required (vapor pressure at 20 degrees C is approximately 1 x 10-4 torr). Thus Compound Q is used to seal joints and fill holes and gaps on the rotary pump side of the system.