Mastering the Wash: A Deep Dive into Brush Pen Bleed and Pigment Ink

There is a particular kind of thrill that comes with a good art supply haul. It’s the unboxing—the smell of fresh plastic and the promise of a new set of tools waiting to be put to work. For us Rogue Artists, a new box of pens is never just a collection of colors; it’s a challenge, a promise of a new skill to master.

Recently, we took on a deep dive into the world of brush pens, specifically testing out a vibrant haul of Pentel pens. When you start working with a fresh box, the temptation is to use every single color immediately. The goal was simple: to use a variety of mediums—from vibrant sky blues and bright oranges to soft greys—in one loose ink sketch, building a composition that included everything from a simple still life of roses to a portrait reference.

But as any artist knows, the learning curve is often steeper than the initial excitement. While the colors themselves were incredibly vibrant and easy to use, the process of layering different inks and adding a delicate wash taught us some crucial lessons about the materials themselves.

The Delicate Dance of Ink and Water

The biggest hurdle we encountered was the interaction between the various inks and water. Many of these beautiful pens are dye-based, meaning the color is derived from a dye that reacts visibly with water. This is wonderful for vibrancy, but it makes the process of adding a light wash, or ‘bleeding’ the colors, a tricky affair. We quickly learned that adding a plain water wash—even with a dry brush—caused the black lines to bleed into the grey, making the resulting wash much darker than intended. It’s a constant negotiation between control and fluidity.

This experience highlighted a foundational concept for any sketcher: understanding the medium is half the battle. If you want that crisp, dry-brush effect—where the ink sits beautifully on the paper without spreading—you need to be mindful of what you are using.

Dye vs. Pigment: A Lesson in Permanence

The most critical takeaway from this session, and one we encourage every artist to pay attention to, is the difference between dye-based and pigment-based inks. While dye inks offer stunning color pop, they are notorious for their tendency to react with water, leading to the bleeding we observed. For artists who plan on layering washes, doing detailed watercolor effects, or working with highly wet media, pigment ink is your best friend. Pigments are suspended particles that are generally water-resistant, offering that permanence and clean edge you want when you are building up value and composition.

We also explored the wonderful effect of the dry brush technique with the black pens. Using the bristles lightly, we could achieve light, airy lines that provided beautiful texture, perfect for adding a sense of atmosphere to a landscape or a figure drawing. It’s all about controlling the amount of water on the brush to maximize that beautiful, subtle texture.

Beyond the Pen: Expanding Your Sketchbook Palette

This experiment wasn't just about the pens; it was a reminder that the sketchbook is a living, breathing record of your journey. Whether you're doing a quick study of a still life, working on a figure drawing from life, or attempting a complex landscape in plein air, the materials must support the vision. Sometimes, the best tools aren't the newest or the most vibrant, but the ones that understand the chemistry of the paper.

We love the hands-on, tactile nature of art. It’s a practice that requires us to be fully present—to feel the drag of the pen, to see the way the light catches the watercolor wash, and to anticipate where the next line will fall. It is a wonderful antidote to endless scrolling.

The Rogue Artists community exists to keep us doing this, together. Whether you're looking to sharpen your understanding of perspective in a local class, need a partner for a figure drawing session, or just want to share your latest ceramic piece, there is a room for you. Don't let your passion stay confined to a Pinterest board. Find an Art Angel near you, book a workshop, or list your studio today. Let's get back to the beautiful mess of creation.