How to Panel Line Your Gundam Kits Like a Pro

If you've ever looked at a professionally built Gundam model and wondered how it gets those crisp, dark lines that make every panel pop, the answer is panel lining. Panel lining is one of the most rewarding and accessible techniques in Gunpla (Gundam plastic model) building. It adds depth, definition, and a level of realism that transforms a plain kit into a showcase piece. Whether you're a beginner or a seasoned builder, mastering panel lining is a game-changer.

In this guide, we'll walk you through everything you need to know about gundam panel lining: the tools, the techniques, and the tips that will help you achieve clean, professional results. From using a simple Gundam marker to mastering the wash technique, you'll be ready to take your Gunpla to the next level.

Why Panel Lining Matters

Gundam kits are molded in colored plastic, but the parts often look flat and toy-like straight out of the box. Panel lining is the process of adding dark ink or paint into the recessed lines and grooves of the kit. This creates shadows and separation between panels, making the model look more detailed and realistic. It's a low-effort, high-impact technique that can dramatically improve the appearance of any kit.

Think of it as the difference between a coloring book page and a finished drawing: the lines give structure and define the shapes. For Gundam kits, panel lining is the first step toward a more polished look, and it's often the gateway to other detailing techniques like weathering and topcoating.

• Adds depth and realism to your model
• Highlights panel lines and details
• Makes the kit look more dynamic and less 'plastic'

Tools You'll Need

Before you start, you'll need the right tools. The most common and beginner-friendly option is a Gundam marker, which is a felt-tip pen specifically designed for panel lining. These markers come in various colors (black, grey, brown) and are easy to use, especially for straight lines. For more advanced techniques, you might use a fine-tipped brush with panel line accent color (a type of wash), or even a mechanical pencil for subtle effects.

You'll also need some cotton swabs, a soft eraser, and possibly some lighter fluid or rubbing alcohol for cleanup. If you're using a wash, you'll want to have a small container and a brush. And don't forget a good work surface and good lighting – you'll need to see those fine lines clearly.

• Gundam marker (fine tip) – ideal for beginners
• Panel line accent color (wash) – for a more liquid application
• Cotton swabs and eraser for cleanup
• Optional: lighter fluid or rubbing alcohol for removing mistakes

Technique 1: Gundam Marker Panel Line

The Gundam marker is the easiest way to panel line your kit. Simply take the marker and trace along the panel lines, letting the ink flow into the groove. The tip is designed to fit into the lines, and the ink is water-based, so it's easy to clean up with a damp cloth or a cotton swab. This method is perfect for beginners because it's forgiving – if you make a mistake, you can wipe it away before it dries.

For best results, work on a single part at a time. Hold the part steady and run the marker along the line, applying gentle pressure. If the line is long, break it into segments to avoid smudging. After the ink dries (usually a few minutes), you can use a soft eraser to remove any excess that might have gotten onto the flat surfaces. This technique is great for straight lines and small details.

• Choose a marker color that contrasts with the plastic (black for light colors, grey for white, brown for red/yellow)
• Use a cotton swab slightly dampened with water to clean up mistakes
• Let the ink dry completely before handling to avoid smudges

Technique 2: Wash Panel Line Gundam

For a more fluid and precise application, many builders prefer using a panel line wash. This is a thin, low-surface-tension ink that flows into the lines via capillary action. You can buy ready-made panel line accent colors (like Tamiya's) or make your own by thinning paint with lighter fluid. The wash method is excellent for curvy lines and tight corners that are hard to reach with a marker.

To apply, dip a fine brush into the wash and touch it to the panel line. The wash will flow along the line automatically. Let it dry, then clean up any excess with a cotton swab dipped in lighter fluid. Be careful not to use too much, as it can pool and ruin the plastic. Always test on a spare part or the underside of a piece to ensure compatibility.

• Work in a well-ventilated area if using solvent-based washes
• Use a toothpick to guide the wash into stubborn lines
• Clean up quickly before the wash dries for easier removal

Tips for a Professional Finish

To achieve that 'pro' look, consider the color of your panel lines. Black is the go-to for most kits, but grey is better for white parts to keep the contrast subtle, and brown works well for red or yellow parts. Also, think about the scale of your kit – on smaller kits, thinner lines are better, so a fine marker or a wash with a smaller brush is ideal.

Another pro tip is to panel line before assembling the parts. This allows you to reach all the lines easily and avoids smudging on adjacent parts. After panel lining, you can apply a topcoat (like a matte or gloss clear coat) to protect the lines and give your model a uniform finish. This step is optional but highly recommended for a durable and professional look.

• Test your marker or wash on a runner to see the color before applying
• Use a magnifying lamp for detailed work
• Practice on a cheap kit first if you're nervous

Common Mistakes to Avoid

One common mistake is applying too much pressure with a marker, which can cause the ink to bleed and create thick, uneven lines. Another is using the wrong color – black on dark blue parts will barely show, while white on white parts will look out of place. Also, don't skip the cleanup step; leaving excess ink on the surface can make your kit look messy.

Finally, be patient. Panel lining is a meticulous process, and rushing can lead to mistakes. Take your time, work in good lighting, and don't be afraid to redo a line if it doesn't look right. With practice, you'll develop a steady hand and an eye for detail.

• Avoid pressing too hard with the marker
• Choose the right color for each part
• Always clean up excess ink after application

Panel lining is a simple yet transformative technique that every Gundam builder should master. Whether you use a Gundam marker or a wash, the results are well worth the effort. Now that you've learned the basics, why not practice on your next kit? If you're looking for a new project, check out the Mobile Suit Gundam MS-06 Zaku II High Grade 1:144 Scale Model Kit – it's a great canvas for your new skills. Happy building!