Pli-Glass Sac: More Durable Against Nasty Inks?

[butangmucat]

As http://www.richardspens.com/?page=ref/care/inks.htm stated, certain inks eat away sacs. Recently purchased a Lady Duofold, as in https://www.fountainpennetwork.com/forum/topic/304602-parker-lady-duofold-probably-51-derived/ and want to have some Iroshizuku ink in it. It seems that the Pli-glass sac has been praised for durability but I am not quite sure, any suggestions?

[ac12]

I would not be afraid of putting any FP ink into a Parker plyglass sac.

I think Richard was refering to the old latex rubber sacs.

Edited February 24, 2016 by ac12

[DustyR]

They seem more durable based on the number of 60+ yr. old ones I have still holding ink, but they do stain quickly. Many of the rubber sacs I've found failed or failing may be in that state due as much to age/oxidation as any ink, though.

[FLZapped]

They seem more durable based on the number of 60+ yr. old ones I have still holding ink, but they do stain quickly. Many of the rubber sacs I've found failed or failing may be in that state due as much to age/oxidation as any ink, though.

I have a P21 like that has the original sac and was originally my grandfather's pen, so it is probably older than I am.

[tonybelding]

For one thing, "Pli-Glass" or PVC is much tougher than latex rubber. For another, I've never heard of anybody having any kind of problems with Iroshizuku. Ever.

 

So. . . Go ahead, ink it up!