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The Gentleman Stationer

Vintage Living in the Modern World.
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We’re shipping a lot more ink lately, and getting questions about winter shipping logistics.

Practical Points: Freezing Ink and Cleaning Fineliners

February 22, 2025

We’ve had a huge blast of cold here in Tennessee. We only occasionally get “real” winter weather, but when it arrives it tends to cause trouble. So, it comes as no surprise that more than a few people have asked me for my recommendations about ordering ink in the winter. Namely, should you do it?

How much Should You Worry About Ink Freezing?

I’ve read many different takes on this question. There are people online who will tell you that they pause ordering ink entirely from December through April. Others (myself included) don’t pay much attention to the issue, as it will take a pretty significant, prolonged exposure to cold in order for most inks to freeze. But if that happens, there is a chance that a plastic cap, or the glass bottle itself in some cases, will crack as the frozen ink expands and make a huge mess as the frozen ink thaws.

The right answer here depends on your personal risk tolerance and the weather where you live. If the temperature in your area is well below freezing for multiple days (or weeks or months) at a time, I probably wouldn’t risk it. Your ink will likely sit in a postal service storage unit or non-climate-controlled truck prior to delivery, and this is where stuff tends to freeze. If you are worried about a specific ink selling out, or find yourself needing to place an ink order despite the weather, most retailers (us included) will hold ink upon request. Please call or e-mail to request such a hold - we simply can’t monitor the weather at every destination we ship to and the waypoints in-between, and if you order ink, we will ship it ASAP absent instructions to the contrary. The one exception is the weather here. If it’s below freezing and forecasted to remain that way for more than a day or two, we may hold ink orders until it warms up because we don’t want packages to sit in the cold at our shipping service waiting for collection. If this hold extends beyond our normal shipping time, we will reach out and let you know.

I’ve ordered a lot of ink over the years, and have had exactly one ink bottle freeze in transit. That’s a pretty good track record, so freezing ink isn’t something I tend to worry about too much. That said, if you live in a perpetually cold area (the Northeastern US, Canada, the Rocky Mountains), or the area you live in is experiencing a deep freeze, it may be wise to hold off until it warms up.

The internal wick shown here was filled with black fountain pen ink for almost a year, and still rinsed clean. I reloaded with Dominant Industry Romania Red.

Can You Clean the Tom’s Studio Lumos and Wren Fineliner Refills/wicks?

This is an easier question to answer: Yes, you can! I’m often asked how hard it is to change colors with the Tom’s Studio Lumos and Wren refillable fineliners, or whether you have to replace the cotton wick. Yesterday I swapped out the black ink that I had loaded into my Lumos and rinsed it completely clean. (See the photo above.) How did I do this? Simply submerge it in a sink full of water and squeeze it until it’s white again. Any non-permanent, water-based fountain pen ink should rinse out easily from both the cotton reservoir and the replaceable tips, though in this case the year-old fineliner tip I had been using was starting to wear down so I replaced it. If you want to rinse the tip, I’ve found that it works best if you hold it under the faucet and then dab the tip into a paper towel until all residual ink leaches out.

I hope you all have found these periodic “Q&A” sessions helpful. I’ve received a lot of positive feedback and have tried to keep doing them regularly. If there are questions you’d like me to answer, feel free to reach out via the Contact page or drop a comment.

The Gentleman Stationer is supported by purchases from the T.G.S. Curated Shop and the T.G.S. Patreon Program. If you’re in the Nashville area, you can now come pick my brain in person! You can view directions and up-to-date hours for our brick-and-mortar shop here.

In Ask TGS, Editorial Tags Ask TGS, Tom's Studio Lumos Fineliner, Shipping Ink
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Ask TGS: Five Tips for Success with Refillable Fineliners

October 30, 2024

I’ve read a few posts and reviews recently discussing refillable fineliners and fibre-tipped pens such as those made by Tom’s Studio, Kuretake, and Kakimori, which have raised a number of questions about how to use these pens correctly, and what you can expect with respect to the performance of fountain pen inks in non-fountain pens. Personally, I’ve had success using these pens to the point where they might currently be near the top of my everyday user/workhorse pen rotation. Here are a few tips and tricks to get the most out of your refillable fineliners. The suggestions are mostly brand-agnostic and apply across the product category.

  1. Choose a Saturated Ink for Maximum Legibility. Most refillable fineliners use a cotton or fabric “wick”-style cartridge to hold the ink. You fill the pen by placing the end of the wick into your ink bottle or sample vial, and part of the fun is watching the ink work its way up the refill. After inserting the wick into the section, the “feed” part of the fibre tip should extend into the saturated cotton, and once you see the tip change color, the pen is ready to write. While this is a very straightforward way to fill a pen, the mechanics of writing work differently than with a fountain pen. A fountain pen nib and feed operate essentially as a controlled leak, with a relatively large amount of ink applied to the page compared to something like a fineliner, which works more like a brush. As a result, inks that are lighter in tone and/or designed to shade may appear extremely light in a fineliner, compared to more saturated inks, due to less ink being applied to the page. Use darker, more saturated colors to maximize legibility for writing with a fineliner, unless you are expressly looking for the lighter tone.

  2. Don’t Expect Shimmer Inks or Inks with Special Properties to Behave the Same as in a Fountain Pen. This one should be self-explanatory, but the large particles that give “shimmer ink” the shimmering effect cannot be absorbed by a wick reservoir and can’t flow through the fineliner tip. While a shimmer ink might technically “work” in the fineliner, the color you see will almost certainly be the base color in the ink, minus the shimmer particles. Similarly, I’ve found that some pigmented inks don’t work as well in fineliners, while others (presumably with smaller particles of solid pigment) work better. I would still say that the best performers have been regular water-based fountain pen inks.

  3. Don’t Leave the Cap Off Your Fineliner for an Extended Period of Time. If the ink dries out in a fineliner nib, it will need to be flushed with water to get the pen writing again. Sometimes you can fix the issue by simply wiping the tip with a wet paper towel to remove dried ink, but the easiest fix is to not let the pen dry out in the first place.

  4. When Changing Colors, Let the Wick and Tip Dry Completely Before Refilling. Where a refillable reservoir is included (as with the Tom’s Studio Lumos or Wren), it is absolutely intended to be rinsed and reused several times before being replaced. I’ve had the best luck completely submerging the refill in a bowl of water and squeezing the ink out multiple times until the refill is white again. The tips can typically be rinsed under a faucet, though you may need to soak them with certain inks. Place the tips and reservoir on a paper towel and allow to fully dry (24+ hours, preferably) before attempting to refill.

  5. Think Carefully About How You Plan to Use the Pen Before Filling It. Given that it can be a bit of a chore to change ink colors, you should give a bit of extra thought to ink choice and tip size on the front end. (It’s especially important for single-use pens like the Kakimori Colour Liners.) As I mentioned above, if you’re going to use fineliners for writing or sketching, and it’s important for you to write a dark line, you should choose a very dark, saturated ink.

So what inks have I had the most success using in my refillable fineliners? More saturated solid colors by Tom’s Studio and Diamine have worked extremely well. The darker purples, blues, and greens have given me no trouble, and I’ve recently enjoyed the new Midnight Blue Fibre Tip ink, specifically designed by Tom’s Studio for saturation and flow in the fibre-tipped pens. I mentioned in my recent rollerball writeup that I’ve struggled to find a blue-black rollerball or fineliner refill, and low-and-behold, this new ink appeared literally the next week.

I’ve also run some of the Laban Greek Mythology Inks through my Kakimori Colour Liners, and the more saturated colors such as Ares Red and Artemis Navy Blue work exceptionally well. More nuanced colors like Aphrodite Pink are legible, yet appear lighter than they would in a fountain pen and you therefore lose some of the brown/grey/pink nuance to the color. While there’s no substitute for your own experimentation, I’m playing around with as many inks as possible so you don’t have to!

We carry a fairly wide selection of refillable fineliners and fibre-tipped pens in our shop, from the Tom’s Studio Lumos and Wren pens to the Kakimori Colour Liners, with Kuretake pens on the way. If you have additional questions regarding these pens and how they work, feel free to reach out using our contact link.

In Ask TGS Tags Fineliner Pens, Refillable FIneliners, Tom's Studio Lumos Fineliner, Tom's Studio Wren, Kakimori Colour LIners, Ask TGS
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We have all of these in-store to peruse in person. Open by appointment Monday through Wednesday and to the public Thursday through Saturday!

New Arrivals: Introducing the Tom's Studio Wren Fibre-Tipped Pen, Specialized Fineliner Ink, and More!

October 29, 2024

On Saturday, we received a huge box of restock goodies from Tom’s Studio, including the “Wren” pocket-sized fibre-tipped pen, available in five different colors, including two soft matte finishes (Black and Midnight Blue). For those who felt the “Studio” Pocket Fountain Pen was a bit too large to be truly pocketable, the Wren uses the same o-ring posting mechanism in a smaller format. While definitely a smaller, pocketable pen, it posts to a comfortable pocket-pen length, and I’ve been using it for several days without issue. I absolutely love the new “Midnight” Fibre-tipped ink, designed to maximize flow through the Lumos and Wren pens.

The Wren refills in the same way as the Lumos, using the capillary wick.

For those who have been waiting on a restock of the Lumos refillable fineliners, we received additional pens in pretty much every color and style, including a new “Raspberry” color. We also have new Tom’s Studio pencil accessories, including .5mm mechanical pencils, and pencil holders/extenders to give your pencils better balance and a longer life!

The Gentleman Stationer is an authorized reseller of Tom’s Studio products. If you’re in the Nashville, Tennessee area, come see us in-store, and don’t miss our ongoing giveaway and promotion which runs through Thursday evening!

The new “Raspberry” Lumos, second from bottom.

In TGS Curated Shop Tags TGS Curated Shop, New Arrivals, Tom's Studio Wren, Tom's Studio Lumos Fineliner
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New Arrivals: Tom's Studio Lumos Brass Special Editions

August 6, 2024

I had a fun surprise waiting for me when I returned from this past weekend’s D.C. Pen Show. The Tom’s Studio Lumos refillable fineliners have been one of my favorite discoveries of 2024, and they recently released brass versions of the Lumos Pro, the Lumos Pro Duo, and the Lumos Mini! These pens function the same way as the standard Lumos pens, using the refillable fibre tip and wick system that allows you to use fountain pen inks in a fineliner format. You can read more about how these pens work here.

In addition to the new Lumos Brass editions, we received additional stock of the standard Lumos pen models in most colors, Studio Pocket Fountain Pens (which you can of course pair with any of the Tom’s Studio Specialty Nibs sold separately), and all colors of the Tom’s Studio ink line. Tom’s Studio inks are water-based and appropriate for fountain pens as well as the Lumos line.

The Gentleman Stationer is supported entirely by purchases from the T.G.S. Curated Shop and pledges via the T.G.S. Patreon Program.

The Lumos Pro Duo (left) and Lumos Mini in brass.

In TGS Curated Shop Tags New Arrivals, TGS Curated Shop, Tom's Studio, Tom's Studio Lumos Fineliner
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New Arrivals: TWSBI ECO Caffé Bronze and Lumos Mini Fineliners!

April 30, 2024

The latest TWSBI ECO release is now available! The bronze trim pens released over the past year have been among my favorite, including both this latest coffee-colored fountain pen, dubbed the Caffé Bronze, and the restocked Indigo Blue + Bronze model. I find the bronze to be slightly darker and deeper in tone than TWSBI’s popular rose gold plating. The pens arrived yesterday so they are available to ship immediately.

So what else is new? In addition the full-size Tom’s Studio Lumos Pro and Lumos Pro Duo pens, we now offer the pocketable Lumos Mini! If you’re a fan of fineliners, the Lumos pens are an excellent way to use your fountain pen and pigmented inks in a refillable fineliner format. The pens themselves are slim enough to fit into most planner loops, making them an excellent choice for Plotter. Read more about the Lumos series and how it works here.

The Gentleman Stationer is an authorized retailer of both Tom’s Studio and TWSBI products. T.G.S. is supported entirely by purchases from the T.G.S. Curated Shop and pledges via the T.G.S. Patreon Program.

In TGS Curated Shop Tags New Arrivals, Tom's Studio, Tom's Studio Lumos Fineliner, TWSBI ECO Caffe
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