Thanks for the ideas so far.
We tried the grease previously but the radius around the bolts and at the corners are usually where it pops out and grease is of no help there.
Freezing is not an option as this is a production line enviroment and freezers next to the line are not too practical...
I am looking for some design recommendations on o-ring groove design to help retain an o-ring used in a face seal application.
With the standard rectangular groove the o-ring does not stay in the groove reliably and it can not be checked after assembly.
We have tried the dovetail type groove...