How to Eyedropper Convert a Platinum Preppy

One of the best values in the fountain pen world is converting a Platinum Preppy fountain pen into an eyedropper pen, and here's how. All you need is an o-ring and a bit of silicone grease, and a minute of your time.

This technique can be used on other cartridge/converter fountain pens, too, as long as you have a fully sealed pen body with no metal parts inside. Doing an eyedropper conversion will allow you to save money by avoiding ink cartridges or a converter, and it gives you a higher ink capacity.

Update as of 2021: We used to offer Preppy eyedropper conversion as a service at our store, but discontinued it years ago. We do still offer the o-rings and silicone grease to be able to do the conversion yourself.

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