Korean Dot-Grid Notebooks: Which Paper Actually Takes Fountain Pen Ink
The dot grid format is a blank canvas that demands good paper. Buy a notebook with thin, unsized paper and every wet pen will feather. The Korean market has several strong options, but they are not equal, and the differences come down to gsm and sizing chemistry more than brand reputation.
The Feathering Problem on Cheap Grid Paper
Feathering is what happens when fountain pen ink spreads along the paper fibres rather than staying where the nib placed it. The result is a line that looks ragged at the edges, like a blurred photograph, instead of clean and defined. Feathering is caused by paper with low or no internal sizing, which means the ink has nothing to stop it from wicking through the cellulose fibres in all directions.
The problem is common with budget dot-grid notebooks, which often use paper weights of 60-70 gsm with minimal sizing. These notebooks work fine with ballpoint and gel pens, where the ink is oil-based or quick-drying. With fountain pens, which use water-based ink that stays wet for at least a second after contact, the unsized paper absorbs the ink laterally before it can set.
The solution is simple: look for paper weight of 80 gsm or above, with a description that mentions either "fountain pen friendly" or "smooth finish". Both indicate that the paper has been treated to resist ink spread.
ICONIC Dotted vs Paperian Lined Note vs Monami
The three main Korean brands worth considering for fountain pen use each take slightly different approaches.
ICONIC Dotted A5 uses 80 gsm cream-toned paper with a light sizing that handles most fountain pen inks cleanly. The dot grid spacing is 5mm, which is standard. Feathering is minimal with fine nibs and absent with extra-fine nibs. With medium nibs, there is slight softening at the line edge but nothing that compromises readability. Bleed-through on the reverse side is not a problem except with the wettest broad nibs.
Paperian Note uses 80 gsm white paper. The surface is slightly smoother than ICONIC, which means faster dry time and less ink pooling in the dots. Paperian's paper performs marginally better with saturated, wet inks (noodler's bulletproof inks, for example) than the ICONIC. The dot spacing is 5mm and the dots themselves are printed in a light grey that recedes when you are writing. Paperian produces the cleaner result on screen-printed maps and fine illustration work alongside writing.
Plan d B5 uses 90 gsm paper, which is the heaviest in this comparison. The extra weight shows: the paper feels more substantial, has almost no flex when writing on the back of a preceding page, and handles even the broadest nibs without concern. The B5 format is larger than A5, which suits people who write extensively on each page. The tradeoff is that B5 notebooks are harder to carry and more difficult to fit in a standard bag or shelf.
Gsm Matters More Than Brand Name
In testing the same fountain pen (Pilot Metropolitan, medium nib, with Diamine Oxblood ink) on all three notebooks, the results are instructive:
At 80 gsm, both ICONIC and Paperian produce clean lines with slight softening at the edges. The difference between the two is a matter of preference rather than practical significance.
At 90 gsm (Plan d), the line edges are sharper and the ink pools more cleanly in the nib track, producing the most controlled result.
For comparison, testing the same pen on a common budget dot-grid notebook at 70 gsm shows significant feathering on every stroke and visible bleed-through on the reverse.
The conclusion: when comparing notebooks, check the paper weight first. Any Korean notebook at 80 gsm or above from a reputable brand will perform acceptably. Any notebook at 70 gsm or below is a gamble.
A Three-Week Testing Protocol Readers Can Copy
This is the test used to evaluate the notebooks above. Run it on any notebook you are considering buying in future.
Week 1: Use the notebook with your main writing pen (ballpoint, gel, or fountain pen). Write two pages per day. Note whether the ink shows through on the reverse of the page at normal reading distance.
Week 2: Add a second pen type. If you used ballpoint in week 1, add a gel or fine-liner. Write one page per day with each pen. Note whether the lines are clean at the edges or show feathering.
Week 3: If you use a fountain pen, use it with a moderately saturated ink (Diamine, Waterman, or Pilot Iroshizuku are good test inks). Write one page per day. Assess feathering, dry time, and bleed-through at the same distance you normally read your notes.
This three-week protocol uses the notebook under real conditions rather than a single test spread, which is a more reliable indicator of long-term performance.
The One Notebook to Buy If You Own One Fountain Pen
The Plan d B5, at 90 gsm, is the most reliable option for fountain pen users who take their ink seriously. The extra weight handles every nib size from extra-fine to broad without compromise, and the B5 format provides space for detailed notes, sketches, and layouts that feel cramped in A5.
For users who want A5 specifically (for portability or shelf storage), the ICONIC Dotted A5 is the best Korean option at that format. It handles medium nibs cleanly and performs well with most standard fountain pen inks.
The Paperian is the choice for users who do a lot of visual work alongside writing: its smoother surface holds illustration ink and fine-liner work well alongside fountain pen text.
FAQ
**What is the dot spacing in Korean dot-grid notebooks?** Most Korean dot-grid notebooks use 5mm spacing, which matches the Leuchtturm1917 and Rhodia standard. A few brands offer 4mm spacing, which is common in some Japanese notebooks. Check the product listing if spacing matters for your work.
**Do these notebooks lie flat when open?** Plan d and ICONIC use sewn or glued binding that opens reasonably flat. The Plan d lies flatter due to its heavier paper and stiffer cover. Perfect-bound notebooks (glued spine only) tend to resist lying flat, which is a concern for two-page spreads.
**Are Korean dot-grid notebooks available outside YesStyle?** In the UK, YesStyle is the most consistent source. Some items appear on Amazon UK through third-party sellers. Jet Pens, a US retailer that ships internationally, stocks Paperian and occasionally ICONIC, though shipping costs reduce the value for single-notebook purchases.
**Is 80 gsm always enough for a fountain pen?** It depends on the pen and ink. A dry-writing fine nib with standard ink will perform on 75 gsm paper. A wet broad nib with highly saturated ink will challenge even 90 gsm paper. For typical fountain pen use, 80 gsm is adequate for most situations.

