Oakum is sold and shipped in 50-lb. coils in cardboard containers. Makes bullets when fully unwound, a 50-lb. coil will yield approximately 100 l.f. of 3/4″ diameter rope. The very loose weave allows rapid absorption of Parson Perma Seal in addition to ease of separation for insertion in small crevices.
To keep your project moving, always keep plenty of injection ports on hand.