Step-by-step Platinum Preppy to eyedropper fountain pen conversion

When I dived into the world of cheap fountain pens, I found out that it was possible to turn a cartridge fountain pen to an eyedropper fountain pen.

Previously I was against buying cartridge pens because I thought I would need to buy more cartridges when my ink runs out. Turns out cartridges can be refilled or those pens can be turned into eyedropper fountain pens.

If you have good internet connection, this video on how to convert a Platinum Preppy into an eyedropper fountain pen will guide you through the steps:

If your internet connection isn’t that awesome, you can follow these photo instructions.

Step 0: You will need

How to convert Platinum Preppy into Eyedropper pen

  1. Platinum Preppy pen
  2. Silicone Grease
  3. Ink
  4. Straw
  5. O-ring (optional)
  6. Ink stand (to hold your ink while you coat the nib with silicone grease)

Detach the parts of the Platinum Preppy. If your pen isn’t new, you might want to soak it clean and dry it before the conversion.

How to convert Platinum Preppy into Eyedropper pen

I bought this Platinum Preppy from Tokyu Hands. The price is the cheapest that I’ve seen in Singapore. Think it was $3.40. If you’re looking for other outlets that sell Platinum Preppy in Singapore, Kinokuniya’s price is better than Popular.

The Platinum Preppy from Tokyu Hands is a newer model. The old model’s nib is the same color as the ink while the new model’s is silver.  The new model’s core (?) does follow the ink color which is better looking than the dull gray of the older model.

Step 1: Take apart your Platinum Preppy

How to convert Platinum Preppy into Eyedropper pen

When you take apart the Platinum Preppy, you will not need the cartridge anymore. Keep the cap and nib as well as the plastic barrel.

You’ll also need someone or something to hold your barrel upright after you fill it with ink.

I don’t have an assistant yet so I’m using a roll of tape. I imagine a glass or mug would work too, just make sure that you can place the tank vertically without it slipping and spilling ink all over your table.

Step 2: Fill up your barrel with ink

How to convert Platinum Preppy into Eyedropper pen

I don’t have an eyedropper so I use a straw to fill up my pen. You put one end of the straw in ink and hold the other end with your finger

Because of SCIENCE (air pressure, to be exact), the ink would not leak out while your finger is holding on the other end. Transfer the ink into the barrel.

How to convert Platinum Preppy into Eyedropper pen

The ink should be slightly less than the threads of your barrel so that the ink doesn’t flow out.

Step 3: Rub silicone grease on the threads of the nib

Silicone Grease for sealing Platinum Preppy into eyedropper fountain pen.

I found my stash of silicone grease at a dive shop near bugis. It was a heartbreaking $12 dollars. The shopowner pitied me and gave me an o-ring for free.

In Singapore, Straits Pen sells 10 grams of silicone grease for $4.00. It’s a good price considering you wouldn’t use that much.

Silicone Grease for sealing Platinum Preppy into eyedropper fountain pen.

Take a dab of silicone grease and rub the threads of your nib. At first I included the o-ring but I took it out because it was obstructing me.

I found out that as long as your silicone grease is generous, ink won’t leak out without an o-ring. Or you could get a smaller o-ring instead.

STEP 4: Twist it back

How to convert Platinum Preppy into Eyedropper pen

Twist the barrel and nib back. If you’re using an o-ring, do not close it too tight or the barrel might crack.

How to convert Platinum Preppy into Eyedropper pen

Wipe off your access silicone grease. Give your pen a good shake and you can try out the ink.

Converted eyedropper pen from Platinum Preppy

There you have it. A converted Platinum Preppy.

platinum preppy eyedropper fb

Other resources on how to convert a Platinum Preppy into an eyedropper:

Have you converted a Platinum Preppy into an eyedropper fountain pen? Let me know if you like your new pen.

More about Liau Yun Qing

Yun Qing is a writer, improviser and curious person. She loves finding little adventures in life. In 2013, she went on a 130-day round-the-world trip. She wrote a book to help those who also want to go on a career break.

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