
Hand painting Gundam models with Citadel paints offers a rewarding way to bring your mecha creations to life with precision and depth. Citadel paints, known for their high pigmentation and versatility, are ideal for achieving intricate details and vibrant finishes on Gundam kits. Whether you're a seasoned modeler or a beginner, this process involves careful preparation, such as priming and planning your color scheme, followed by layering techniques to create realistic shadows, highlights, and weathering effects. With patience and the right tools, you can transform your Gundam into a unique, professional-looking masterpiece that showcases your artistic flair and attention to detail.
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What You'll Learn
- Primer Selection: Choose suitable primer colors for base coating Gundam models before applying Citadel paints
- Layering Techniques: Apply Citadel base, layer, and highlight paints for smooth transitions and depth
- Panel Lining: Use Citadel shades or washes to define panel lines and add detail contrast
- Weathering Effects: Create wear and tear with Citadel textures, dry brushing, and sponge techniques
- Sealing Finishes: Protect painted surfaces with matte, satin, or gloss varnishes for durability

Primer Selection: Choose suitable primer colors for base coating Gundam models before applying Citadel paints
When selecting a primer for your Gundam model before applying Citadel paints, it's essential to consider the base color that will complement and enhance the final paint job. Primers not only provide a smooth surface for paint adhesion but also influence how the subsequent layers of paint interact with the model. For Gundam models, which often feature a mix of metallic, dark, and light panels, choosing the right primer color can significantly impact the overall appearance and ease of painting. A common approach is to use a neutral gray primer, such as Citadel's Grey Seer or Dawnstone, as it provides a balanced base that works well with both light and dark Citadel paints. Gray primers allow for better color accuracy and make it easier to build up layers without the underlying color skewing the final result.
If your Gundam model has a predominantly dark color scheme, opting for a black primer like Abaddon Black can be advantageous. Black primers create a deep, shadowed base that enhances darker Citadel paints and reduces the number of layers needed for opaque coverage. However, be cautious when using black primers for lighter colors, as they may require more layers of paint to achieve the desired brightness. Conversely, for models with a lighter color scheme, a white primer such as Corax White can be a great choice. White primers provide a bright, reflective base that makes lighter colors pop and ensures vibrant results with fewer layers of paint. This is particularly useful for Gundam models with white or yellow armor panels.
Metallic primers, while less common, can also be used for Gundam models with extensive metallic detailing. A primer like Leadbelcher can serve as a base for metallic Citadel paints, adding depth and realism to mechanical parts. However, metallic primers are best reserved for specific areas rather than the entire model, as they can be more challenging to work with and may not suit all color schemes. It's important to note that metallic primers should be applied thinly and evenly to avoid obscuring surface details.
Another factor to consider is the type of primer—spray vs. brush-on. Spray primers, such as those from Citadel's Colour Primer range, offer a smooth, even coat and are ideal for larger Gundam models or those with intricate details. Brush-on primers, like Citadel Base paints, are better suited for smaller areas or when you need more control over the application. Regardless of the type, ensure the primer is compatible with plastic models and dries to a matte or satin finish, as this provides the best surface for Citadel paints to adhere to.
Lastly, always test your chosen primer on a small, inconspicuous area of the model or a spare piece of plastic to ensure it adheres well and doesn’t react negatively with the material. Proper surface preparation, such as cleaning the model with soap and water or isopropyl alcohol, is crucial for achieving a smooth primer application. Once the primer is dry, lightly sand any rough areas with fine-grit sandpaper to create an ideal surface for your Citadel paints. By carefully selecting and applying the right primer, you’ll set a strong foundation for a professional-looking Gundam paint job.
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Layering Techniques: Apply Citadel base, layer, and highlight paints for smooth transitions and depth
When hand-painting Gundams with Citadel paints, mastering layering techniques is essential for achieving smooth transitions and depth. Start by applying a base coat using Citadel Base paints. Choose a color that serves as the foundation for your Gundam’s armor or panels. Thin the paint with a small amount of water or a medium like Lahamian Medium to ensure a smooth, even application. Use a larger brush for broader areas and a smaller detail brush for intricate parts. Allow the base coat to dry completely before proceeding, as this ensures subsequent layers adhere properly and maintain their vibrancy.
Once the base coat is dry, move on to the layering stage with Citadel Layer paints. Select a color slightly lighter than your base coat to build up depth and dimension. Apply the paint in thin, even coats, focusing on areas where light would naturally hit the model, such as edges, raised details, and panel lines. Use a technique called "feathering" to blend the layer paint into the base coat, gradually building up the color with multiple thin layers rather than one thick application. This prevents harsh lines and creates a seamless transition between colors.
To enhance the realism of your Gundam, incorporate highlighting with Citadel Layer or Edge paints. Choose a color significantly lighter than your base and layer coats, often a near-white or complementary hue. Apply highlights sparingly to the most raised edges and surfaces, mimicking the way light reflects off metallic or plastic surfaces. Use a fine detail brush for precision, and ensure the highlights are subtle yet defined. Avoid over-highlighting, as this can make the model look unnatural.
For smoother transitions between layers, practice wet blending or glazing. Wet blending involves applying a new layer of paint while the previous layer is still wet, allowing the colors to merge naturally. Glazing, on the other hand, uses heavily thinned paint to subtly adjust tones and shadows. Both techniques require patience and a steady hand but can elevate the overall finish of your Gundam.
Finally, seal your work with a matte or gloss varnish to protect the paint job and unify the finish. Citadel’s 'Ardcoat or Munitorum Spray Varnish are excellent choices. Apply the varnish in thin, even coats, allowing each layer to dry before adding another. This not only preserves your hard work but also enhances the depth and richness of the layered paints, ensuring your Gundam stands out with professional-quality detailing.
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Panel Lining: Use Citadel shades or washes to define panel lines and add detail contrast
Panel lining is a crucial step in hand-painting Gundams with Citadel paints, as it enhances the model's details and gives it a more realistic, three-dimensional appearance. To begin, ensure your base coat is completely dry, as applying washes or shades to a wet surface can lead to unwanted blending or streaking. Select a Citadel shade or wash that contrasts well with your base color—darker shades like Nuln Oil or Agrax Earthshade work excellently for most schemes, while lighter shades like Seraphim Sepia can be used for subtler effects. The key is to choose a shade that will accentuate the panel lines without overwhelming the overall color scheme.
Using a fine detail brush, carefully apply the Citadel shade or wash along the recessed panel lines of your Gundam model. Start with a small amount of product on your brush, as it’s easier to add more than to fix over-application. Work in thin, controlled strokes, following the natural grooves and crevices of the model. Allow the wash to flow into the recesses naturally, as the pigment will settle into the panel lines, creating depth and definition. Avoid flooding the surface with too much product, as this can obscure details or create a muddy appearance.
Once applied, let the shade or wash dry completely. Depending on the humidity and thickness of application, this can take anywhere from 15 minutes to an hour. If you find the effect is too subtle, apply a second thin coat, focusing only on the deepest recesses. For a more dramatic contrast, consider mixing your Citadel shade with a small amount of black or dark brown paint to create a custom wash tailored to your model’s color palette. This step allows you to fine-tune the intensity of the panel lining to match your desired aesthetic.
After the panel lining has dried, inspect your work under good lighting to ensure the effect is consistent and even. If you notice any excess wash on raised surfaces, gently remove it with a clean, damp brush or a cotton swab. This clean-up step is essential for maintaining the crispness of your model’s details. For added protection and a uniform finish, you can optionally seal the panel lining with a matte or gloss varnish, depending on the desired final look.
Finally, step back and assess the impact of the panel lining on your Gundam model. Well-executed panel lining should draw the eye to the intricate details of the kit, making it appear more dynamic and professionally finished. Practice and patience are key, as mastering this technique can significantly elevate the quality of your hand-painted Gundams. With Citadel shades and washes, you have a versatile toolset to achieve precise, striking panel lining that complements your overall paint job.
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Weathering Effects: Create wear and tear with Citadel textures, dry brushing, and sponge techniques
To achieve realistic weathering on your Gundam model using Citadel paints and techniques, start by applying Citadel Textures to simulate natural wear and tear. Textures like "Typhus Corrosion" or "Martian Ironearth" can be dabbed onto areas prone to damage, such as edges, joints, and panels. Use a small brush or palette knife to control the application, focusing on recessed areas and corners. Allow the texture to dry completely before proceeding. This base layer of texture will provide a tactile foundation for subsequent weathering effects, mimicking rust, dirt, or chipped paint.
Next, employ dry brushing to highlight edges and create the appearance of worn surfaces. Load a stiff brush with a metallic Citadel paint, such as "Leadbelcher" or "Ironbreaker," and remove most of the paint by wiping it on a cloth or paper towel. Lightly sweep the brush across raised edges and details, allowing the underlying texture or base coat to show through. This technique simulates the way metal or paint wears down over time, exposing the material beneath. Repeat the process with progressively lighter shades to add depth and variation to the weathering.
For broader, more natural wear effects, use the sponge technique with Citadel paints. Dip a piece of foam or sea sponge into a dark wash or earthy tone like "Agrax Earthshade" or "Ryza Rust," then dab it gently onto the model’s surface. Focus on larger areas like armor plates or flat surfaces, blending the paint to create a gradient effect. This method mimics the accumulation of dirt, grime, or rust in a way that appears organic and realistic. Experiment with different sponge pressures and paint consistencies to achieve the desired level of weathering.
Combine these techniques to layer weathering effects for maximum realism. After applying textures and dry brushing, use a sponge to add subtle grime or dirt over the entire model, unifying the weathered look. For chipped paint effects, carefully scrape off small areas of the top paint layer with a hobby knife or fine brush, revealing the base coat or primer beneath. Seal your work with a matte varnish to protect the finish while maintaining the model’s gritty, battle-worn appearance.
Finally, consider the story you want your Gundam to tell through its weathering. Focus wear on areas that would naturally experience friction or damage, such as feet, hands, and weapon surfaces. Use contrasting colors and textures to draw attention to key details, like battle scars or mechanical stress points. By thoughtfully layering Citadel textures, dry brushing, and sponge techniques, you can transform a pristine Gundam into a convincingly weathered machine ready for the battlefield.
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Sealing Finishes: Protect painted surfaces with matte, satin, or gloss varnishes for durability
Sealing your hand-painted Gundam model with a varnish is a crucial step to ensure the longevity and durability of your artwork. After spending hours meticulously painting your Gundam using Citadel paints, you’ll want to protect the surface from wear, chipping, and environmental damage. Varnishes act as a protective barrier, preserving the vibrancy of the colors and the integrity of the paint job. There are three primary types of varnishes to choose from: matte, satin, and gloss, each offering a different finish to suit your desired aesthetic. Applying a varnish is not just about protection; it’s also about enhancing the overall look of your model.
Matte varnish is the most popular choice among Gundam painters, especially for models with a realistic or weathered appearance. It provides a flat, non-reflective finish that reduces the shininess of the paint, giving your model a more natural and subdued look. Citadel’s 'Matt Varnish' is a reliable option for this purpose. To apply, thin the varnish with a suitable medium (such as Lahmia Medium) to ensure a smooth, even coat. Use a large brush or an airbrush for application, applying thin layers to avoid pooling or obscuring details. Allow each layer to dry completely before adding another to build up the desired level of protection.
If you prefer a subtle sheen that strikes a balance between matte and gloss, satin varnish is an excellent choice. It adds a soft, velvety finish that enhances the depth of colors without being overly reflective. This type of varnish is ideal for models where you want to maintain a natural appearance while still adding a touch of elegance. Citadel does not offer a dedicated satin varnish, but you can achieve a similar effect by mixing matte and gloss varnishes in a 2:1 ratio. Apply it in thin layers, ensuring even coverage to avoid streaking or unevenness.
Gloss varnish is perfect for models where you want to emphasize the vibrancy and shine of the paint, such as metallic or enamel-like finishes. It creates a highly reflective surface that makes colors pop and gives your Gundam a more dynamic appearance. Citadel’s 'Gloss Varnish' is a great option for this purpose. However, gloss varnish can highlight imperfections in the paint job, so ensure your base coat is smooth and well-applied before sealing. Apply it sparingly, as thick layers can drip or obscure fine details. Gloss varnish is also commonly used for specific areas like lenses, sensors, or metallic panels to create contrast.
Regardless of the varnish type you choose, proper application is key to achieving a professional finish. Always shake or stir the varnish thoroughly before use, and test it on a spare piece of plastic or a test model to ensure compatibility with your paint. Apply the varnish in a well-ventilated area, using smooth, even strokes to avoid brush marks. For airbrushing, dilute the varnish to the consistency of milk for optimal atomization. After application, allow the varnish to cure fully, which can take anywhere from 24 to 48 hours depending on humidity and thickness. Once cured, your Gundam will be protected and ready for display or play.
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Frequently asked questions
Start by cleaning the model with mild soap and water to remove any grease or mold release agents. Lightly sand the surface with fine-grit sandpaper (800-1200 grit) to create a smooth base. Prime the model with a suitable primer (e.g., Citadel Chaos Black or Corax White) to ensure paint adhesion and enhance color vibrancy.
Citadel offers a wide range of acrylic paints suitable for Gundam models. Base paints provide solid coverage for large areas, Layer paints are ideal for adding details, and Shade paints can be used for panel lining or weathering effects. Popular choices include Mephiston Red, Macragge Blue, and Leadbelcher for metallic parts.
Thin your Citadel paints with a medium like Lahmian Medium or water to achieve a smooth consistency. Apply multiple thin coats rather than one thick coat to avoid streaking or obscuring details. Use a high-quality brush (e.g., Citadel’s S Layer or Detail brush) and maintain a steady hand or use a brush holder for precision.
For panel lining, apply Citadel Shade paints (e.g., Nuln Oil or Agrax Earthshade) into recessed areas using a fine detail brush or a panel lining marker. For weathering, use techniques like dry brushing with lighter colors, stippling for chipped paint effects, or applying washes to create grime and wear. Seal your work with a matte or gloss varnish to protect the finish.
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