A vital item to have when working on both vintage and modern fountain pens. Its primary use is as a lubricant for systems relying on vacuum. This includes restorations of Sheaffer Touchdowns and snorkels as well as the restoration of many piston fillers.
Select modern pens are converted into eye droppers by applying, sometimes with an o-ring, silicone grease along the threads at the section/barrel joint.
5ml (~0.17 fl. oz.)