Using Ultrasound For Cleaning Mb Pens.

[Opooh]

The best way of cleaning a pen that has much debris of old ink especially on the writing unit is disassembling the pen and then using a ultrasound device ( like the ones used for cleaning medical instruments ). No problems with Pelikan, Conway Stewart, ....

However these parts are sealed on Montblanc, impossible to disassemble. Question: is it possible to put the pen like that in the device without risking to damage certain parts, resulting in leaking or malfunctioning of the pen afterwards?

[whych]

Try filling the pen with water and then putting it nib down in the ultrasonic cleaner with liquid only covering half way up the section.

[mhphoto]

Maybe use an ammonia solution instead? I've never played around with a MB, so I'm not sure if that would help your problem.

[Dr.Grace]

I once resealed the nib unit from a friend's leaky old 149. I believe MB uses some kind of proprietary sealant, but I recall that I used shellac or rosin-based sealant to re-attach the nib section. It wasn't difficult. However, in this case, since the pen isn't leaky, I'd try soaking in Rapido-Eze.