Originally Posted by
gaucho777
I don’t know if it’s scientifically sound, but I’ve found rubbing on a small dab of vasoline with a rag will bring back the luster of Delrin. I started doing this a few years ago and my Delrin bits have remained deep black with no cracking or other ill effects.
Dunno about “scientifically valid,”. But Delrin coexists with lubricants inside the Simplex front mechs. Those do not survive, but I think their springs are really strong, more so (IMHO) that the stress on a headset, despite the higher loading of a headset bearing. I have not heard much grieving over fractured headsets, over the years.