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J. Herbin Perle Noire Vs. Latex Pen Sac . . .


markofp

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I have a Conklin All-American sleeve filler with a latex sac that has only ever been filled with J. Herbin Perle Noire. After only about a year and three or four refills, the sac is a mess: gooey and sticky with a hole in it. I'm shocked, I never heard of Herbin being especially aggressive with latex, I thought it would be pretty safe. Has anyone else run into this with Perle Noire, or any other Herbin color?

 

And while I have you, can anybody vouch for a good repair person to replace the sac?

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Is it possible your sac was faulty? Any particular chemicals cleaning the pen/sac for flushes?

“I admit it, I'm surprised that fountain pens are a hobby. ... it's a bit like stumbling into a fork convention - when you've used a fork all your life.” 

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Is it possible your sac was faulty? Any particular chemicals cleaning the pen/sac for flushes?

IIRC there is a recent thread warning against the use of ammonia based flushes in pens with latex sacs.

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I've actually never flushed the sac, just the nib, and with distilled water. It's very strange. Ah well, I'll get someone to change out the sac and switch to Diamine, maybe.

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  • 3 weeks later...

I use Perle Noir almost exclusively in pens with different filling systems. Piston, vacuum, "aerometric", ABS plastic converters, safety... I've never had a problem with any of them. I believe the "aerometrics" -- mostly Pilot / Namili -- have silicone sacs but I don't know for sure. I only use plain water to clean my pens, always have.

If you do have the chance to get the sac replaced I'd recommend having a silicone sac installed. There's plenty in the air that can cause latex to disintegrate, even before adding ink.

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