Gaia 024 Gloss Cobalt Blue Review: Achieve a Mirror Finish on Your Gunpla
By Newtype | Published: 2026-08-19
Category: Product Reviews
Our in-depth review of Gaia 024 Gloss Cobalt Blue paint. Learn how to achieve a flawless mirror finish on your Gunpla with tips on application, thinning, and topcoating.
When it comes to achieving a show-stopping mirror finish on Gunpla, the choice of paint is everything. Among the vast array of acrylic and lacquer paints available, Gaia Notes has earned a reputation for producing some of the most vibrant and durable colors in the hobby. In this review, we focus on Gaia 024 Gloss Cobalt Blue, a color that promises not only a rich, deep blue but also a high-gloss finish straight from the bottle.

Whether you're painting a sleek mobile suit like the HGGTO 003 MS-06R-1A Zaku II High Mobility Type Gaia/mash or adding a striking accent to a custom build, this gloss cobalt blue is a versatile choice. But does it live up to the hype? We put it to the test, examining its coverage, flow, and the final mirror-like result. Read on to find out if this is the gundam paint gloss you've been searching for.

First Impressions and Packaging
The Gaia 024 Gloss Cobalt Blue arrives in a standard 15ml glass bottle with a metal cap, typical of Gaia Notes' premium line. The label is clean and informative, indicating the color name and number clearly. Upon opening, the paint has a smooth, creamy consistency with a noticeable sheen, hinting at its glossy nature.
The color itself is a stunning, saturated cobalt blue with a slight purple undertone. It's not too dark, allowing for good depth, yet it's vivid enough to pop under direct light. As a gloss paint, it's designed to dry with a shiny finish, reducing the need for a separate gloss coat in some applications.
- Gloss finish straight from the bottle, saving time on clear coating
- Excellent pigment load for a rich, opaque color
- Thins well with Gaia's own thinner or Mr. Color Leveling Thinner
Application and Performance
To test the paint, we airbrushed it onto a primed plastic spoon and a spare runner. We used a 1:1.5 paint-to-thinner ratio with Mr. Color Leveling Thinner, which is a common practice for Gaia paints. The paint atomized beautifully, producing a smooth, even coat without any sputtering or clogging. The first pass gave about 80% opacity, and a second light coat achieved full coverage.
Drying time was impressively fast, around 15-20 minutes to the touch, which is typical for lacquer-based paints. The finish was smooth and glossy, though not quite a mirror polish straight from the airbrush. However, with a light buffing using a microfiber cloth, we achieved a noticeable shine. For a true mirror finish, a clear gloss topcoat is recommended, and we found that Gaia's own topcoat works perfectly with this paint.
- Use a 1:1.5 to 1:2 ratio with Mr. Color Leveling Thinner for best flow
- Apply in thin, even coats to avoid runs and sags
- Allow 24 hours for full curing before handling or masking
Durability and Finish
Once fully cured, the paint forms a tough, scratch-resistant surface. We tested it by lightly scratching with a fingernail, and it held up well, showing no immediate damage. This durability is essential for Gunpla parts that are frequently handled during assembly and posing.
The gloss level is high, but not overly reflective. It gives a 'wet look' that enhances the depth of the color. For a true mirror finish, we recommend applying a coat of gloss clear, followed by a polishing compound. We used this paint on a custom Zaku II build, and the cobalt blue panels looked stunning, especially when paired with metallic accents.
- Excellent adhesion and scratch resistance
- Gloss level is high but can be further enhanced with polishing
- Compatible with enamel and acrylic panel line washes when properly cured
Comparison with Other Gloss Paints
How does Gaia 024 stack up against other gloss cobalt blues on the market? We compared it with a similar shade from Mr. Color and found that Gaia's version had a slightly more vibrant hue and a smoother out-of-the-bottle finish. The Mr. Color paint required more coats to achieve the same opacity, making Gaia a more efficient choice.
In terms of price, Gaia Notes colors are typically a bit more expensive, but the quality justifies the cost for serious modelers. The paint's performance is reliable, and the finish is consistently impressive. For those looking to achieve a mirror finish, this is a top-tier option.
- More vibrant than comparable Mr. Color shades
- Better coverage with fewer coats
- Slightly higher price but worth it for the quality
Tips for Getting a Mirror Finish
Achieving a true mirror finish requires more than just a good paint. Here are some tips we learned while testing Gaia 024: First, ensure your surface is perfectly smooth. Sand your primer with fine grit (1000-2000) to eliminate any imperfections. Second, apply multiple thin coats of the gloss paint, allowing each to dry completely. Third, after the paint has cured, polish it with a fine compound or use a gloss clear coat and then polish that.
We also recommend using a high-quality airbrush and a moisture trap to avoid any water spots in the finish. Finally, consider using a dedicated gloss thinner, like Gaia's own, to optimize the flow and leveling of the paint.
- Sand primer to 2000 grit for a smooth base
- Apply 2-3 thin coats of Gaia 024 for best results
- Polish with a fine compound for a glass-like shine
Gaia 024 Gloss Cobalt Blue is a fantastic choice for modelers seeking a vibrant, high-gloss blue that performs beautifully in an airbrush. Its ease of use, durability, and stunning finish make it a worthy addition to any paint collection. Whether you're painting a Zaku II or a custom Gundam, this color will help you achieve that professional mirror finish you're after. Pair it with a reliable topcoat, and you'll have a build that stands out.



