Sac Life

[pajaro]

I bought most of my Esterbrooks around 2011 and 2012.  I resacced the ones that didn't come with a new sac.  I am thinking the life of a latex sac is about ten years.  Is it safe to assume that the latex sacs in these pens will give out after ten years, which means soon, or can I expect more?

 

I have resacced two or three of my pens, two M2s and an LJ with PVC sacs, and they are doing fine.  Are PVC and silicone sacs OK for these pens?  I don't want to face another mass resaccing if I can help it.  Thanks.

 

[Estycollector]

Oh my!! I'd hate to have to take those pens apart again.

[pajaro]

I started investigating.  Some of the J-series pens let me pull the section out.  Of these, three are still supple, two are hard as a rock and one section pulled out and left the sac in the pen.  Sac was hard.  The more sections that fit into the pen without heat, the fewer opportunities to burn up a barrel by overheating.

 

[Estycollector]

38 minutes ago, pajaro said:

I started investigating.  Some of the J-series pens let me pull the section out.  Of these, three are still supple, two are hard as a rock and one section pulled out and left the sac in the pen.  Sac was hard.  The more sections that fit into the pen without heat, the fewer opportunities to burn up a barrel by overheating.

 

I’ve had hard intact ones, preferred and I’m several pieces.

 

After replacing a few jbars, if I had to do another one, I’d always charge them along with the sac. 
 

I used to use a copper brush to clean the jbars. 
 

might be wrong, but if I rinse out the ink with water before storage, hopefully the sacs will last .

 

[pajaro]

Today I found this one.  Blue LJ with PVC sac and 2312 italic nib.  One I won't have to resac, and the pen with PVC sac worked for a while.