Second conklin sleeve filler sac melted on me

[lowks2]

gotten in touch with Yafa. waiting for response.

Oh it's a modern Conklin... good luck with that.

Because of the pen or because of Yafa ?

Both in this sense, since YAFA has an issue with quality control with most the brands they own. I can't exactly see them picking out quality sacs. If you were able to disassemble the pen yourself without much issues I would just replace the sac with either silicone or PVC (depending on the barrel material), and not worry much about your ink choices.

But for Aurora black (pretty much pH neutral) to rupture a fresh sac... that has to be a pretty poor sac quality.

If two sacs from them chemically ruptured (ie: if it was handled by Yafa versus the brick and mortar store using their own material), then I don't think third time is going to be a charm from them.

Have yet to reply me too, reached out to them on contact us link, instagram (conklin and yafa). Could be due to the difficult times now.