The glue will cause a hard spot to form in the elastomer causing the dynamic seal to leak. Vibration damping, especially with metal bellows designs. Slotted or other forms of non dedicated glands for maximum flexibility. Rotate the fluid in the stuffing box rather than have the seal components rotate through the fluid. This is especially important in metal bellows designs because of their thin plates.
Abrasive fluids can cause severe wear in a short period of time.
Repair kits Present and more restrictive future legislation will discourage the shipment of seals to outside repair facilities or back to the manufacturer because of personnel hazard problems. Try to select designs that can easily be cleaned and the critical parts replaced at your facility. Relapping is not acceptable because trapped solids and lapping fluid will be forced into the soft carbon. Machining or grinding a blank carbon is not acceptable because the blank will not have enough density when the outer layers are removed. The springs work harden with time and corrode at a faster rate than the other metal components.