Injectable packing seals and accessories help prevent excessive leaking through the pump shaft or valve stem. Injectable packing seals consist of shredded fibers mixed with lubricant or grease and injected into a pump's stuffing box with a packing gun. These seals can be added to an active pump, unlike rope-packing seals that require the pump to be shut off. These packing seals prevent liquids from leaking excessively through a pump's drive shaft.