Koh-I-Noor Rapido-Eze Pen Cleaning Concentrate

[eijiebru]

Hello All,

I am thinking to use the Koh-I-Noor Rapido-Eze Pen Cleaning Concentrate for unclogging the nib with carbon ink stuck. I just want to make sure if this liquid has no harm for metal and plastic parts of my very previous pen. Any thought or experience using the concentrate will be appreciative. Thank you for your time!

[Splicer]

Hello All,

I am thinking to use the Koh-I-Noor Rapido-Eze Pen Cleaning Concentrate for unclogging the nib with carbon ink stuck. I just want to make sure if this liquid has no harm for metal and plastic parts of my very previous pen. Any thought or experience using the concentrate will be appreciative. Thank you for your time!

 

It's safe. But if you want to be really really really sure, tell us what kind of pen you have. I've soaked all sorts of stuff in it, but i suppose there might be some sort of material that you want to avoid getting near the solvents. I can't think what that might be though...

[Ron Z]

It's safe to use with hard rubber, celluloid, polystyrene, acrylic. i.e. just about anything used in a pen. The only material that I would avoid is casein. But that's because water, not just the pen cleaner, will damage the material.

 

Rapido-eze is the best and safest cleaner to use for stubborn ink, and for removing India ink. For the later, use full strength.

 

 

[mzwasp]

It's safe to use with hard rubber, celluloid, polystyrene, acrylic. i.e. just about anything used in a pen. The only material that I would avoid is casein. But that's because water, not just the pen cleaner, will damage the material.

 

Rapido-eze is the best and safest cleaner to use for stubborn ink, and for removing India ink. For the later, use full strength.

 

I just bought two bottles on the basis of all the recommendations here.

I have a number of pens that have been in storage for quite a while

and are not stiff, scratchy or simply unable/unwilling to write anymore -

which I'm hoping is due to the caked ink issue I've been reading about here.

Question: how long should I soak these pens? Approximately speaking, of course!

Thanks in advance.

[thibaulthalpern]

Yes, so how should one use this cleaner? I don't own any kind of ultrasonic cleaning machine.

 

Can I just let fountain pen suck up Rapido-eze like it does ink and let it sit in the reservoir and feed for about a minute and then pump it back out?

[Ron Z]

As broadcast engineers like to say, when all else fails, read the instructions.

[Douglas]

I heard about Rapido-Eze a number of years ago and then this thread prompted me to send for some. I used it today on a cap that had a good deal of dried ink in the cap and which didn't come out with water in the ultrasonic cleaner. With a one to four solution of Rapido-Eze the results were amazing - absolutely clean with no trace of ink left. I am sold on this product!

[srspencer]

One data point: I have used it on a co-worker's fossilized Waterman Phileas with good result.