--
The sliding hatch on our P31-2 companionway has a tendency to stick, a few times on hot days I've had to remove the alu trim strips to free it up. So I have removed it and cleaned out a collection of builtup dirt, any advice as to a suitable lubricatant for re-installing? The hatch slides directly on the fg frame of the companionway/deck, nothing to reduce friction except a lubricant.