Can You Refill Your Posca Markers? A Guide to Refilling Your Markers with Water-Based Paint

Is It Possible to Refill Your Posca Markers?

Posca markers are widely loved for their vibrant, highly pigmented, water-based ink that works beautifully on a variety of surfaces. However, one common question that many Posca users ask is: Can you refill a Posca marker once it runs out of ink?

The short answer is: Posca markers are not designed to be refillable. However, with the right techniques, some creative artists have found ways to extend the life of their empty Posca markers by refilling them with water-based paint. If you're looking to experiment with refilling, read on to discover how to do it properly.

For a detailed tutorial, check out this YouTube video that explores three different ways to refill Posca markers and even mentions PoscART! ?

? Watch the YouTube tutorial on refilling Posca Markers Thank you Peter Evans Art

? Read our blog on Posca ink content & longevity

Why Aren’t Posca Markers Refillable?

Unlike some other markers, Posca pens are designed as a single-use tool with a sealed ink reservoir. This ensures consistent ink flow, pigment density, and durability. However, because they use water-based acrylic paint, refilling them with a similar medium is possible – though it may not provide the same flawless performance as a new Posca marker.

If you're considering refilling your Posca markers, here are a few things to keep in mind:

✔ The original ink reservoir isn’t designed for refilling – modifying the marker may affect performance. ✔ Using non-Posca ink could change the opacity and consistency of your artwork. ✔ DIY refilling works best with larger tip sizes (PC-5M, PC-7M, PC-8K, PC-17K, or MOP'R).

? Shop New Posca Markers Here

How to Refill Your Posca Marker with Water-Based Paint

If you want to experiment with refilling an old Posca marker, follow these steps carefully:

Step 1: Choose the Right Paint

To maintain the quality and flow of your Posca marker, use a thin, water-based acrylic paint. Some artists also use diluted gouache or ink-based acrylics.

• Ensure the paint is fluid and non-clogging.
• Avoid thick paints as they will block the nib and prevent smooth flow.
• Mix well before use to maintain consistency.

Step 2: Open the Marker Carefully

Since Posca markers are not designed to be refilled, you’ll need to gently open the marker without damaging its structure.

• Twist the nib section carefully to remove it.
• Use a small pipette or syringe to insert the paint into the reservoir.
• Add a small amount at a time to avoid overfilling.

Step 3: Reassemble & Shake

Once the new ink is inside, reassemble the marker and shake it thoroughly to mix the new paint with any remaining ink.

• Press the tip down on scrap paper to start the ink flow.
• Test the marker before using it on your final artwork.
• Clean the nib if there are any clogs or inconsistencies.

? Discover More Posca Marker Tips

Pros & Cons of Refilling Posca Markers

Pros:

• Extends the life of your marker and reduces waste.
• Allows customisation of colours by mixing your own ink.
• A cost-effective solution for frequent users.

Cons:

✖ Not officially recommended by Posca – may void any product guarantees.
✖ Refilled markers may clog, leak, or have inconsistent ink flow.
✖ DIY refilling can be messy and time-consuming.

Alternative: Replacing the Nib for Longer Marker Life

If you’re looking to extend the life of your Posca marker without refilling, consider replacing the nib instead. Worn-out nibs can affect the smoothness and precision of your strokes.

Replacement nibs are available for Posca PC-3M, PC-5M, and PC-8K markers. ✔A fresh nib can restore ink flow and improve colour application. ✔ Nib replacement is an easy and mess-free solution.

? Shop Posca Replacement Nibs

Final Thoughts: Should You Refill Your Posca Markers?

While refilling a Posca marker is possible, it is not the most reliable option. If you’re an artist who loves experimenting, trying a DIY refill can be a fun project. However, for consistent, high-quality results, purchasing a new Posca marker or replacing the nib remains the best choice.

Explore the full range of Posca markers at Poscart.com.au and keep your creativity flowing!

Have you tried refilling a Posca marker? Share your experience in the comments and tag @poscart_au on social media!