Making Custom Faction Markings With Homemade Decals

Custom faction markings can transform a familiar Gunpla kit into a convincing original machine. A small emblem, warning stripe, unit number, or shoulder insignia gives your build a history and makes it feel connected to a fictional military, colony, mercenary group, or personal squadron.

Making your own decals is less expensive than buying specialized sheets, and it gives you control over scale, color, placement, and design language. The process works for beginners, though careful preparation matters more than artistic talent.

Plan the Markings Before Building

Start by deciding what your faction represents. A formal space force may use standardized serial numbers and geometric symbols, while a pirate crew could favor rough lettering, skull motifs, or mismatched warning labels. Keep the visual language consistent across the mobile suit so the markings look intentional.

Measure the available surfaces before drawing anything. Shoulders, shields, skirts, and binders usually provide broad areas, while forearms and legs require smaller designs. Photograph the assembled kit or make a simple paper template to test proportions.

You can also study how official designs balance detail and negative space. A review of the Moon Gundam design can help when you are considering how markings interact with unusual armor shapes and mechanical silhouettes.

Choose the Right Decal Method

Inkjet and laser printers are the most accessible tools for home decal production. Inkjet printers generally create smoother color transitions, but their ink can dissolve when exposed to water unless the sheet receives a clear protective coat. Laser prints are more water-resistant and produce crisp black linework.

Waterslide decal paper is ideal for most Gunpla projects because it allows precise placement and conforms well to curved armor. Choose transparent paper when the design will sit over a light base color. Use white decal paper for bright symbols on dark armor, remembering that the white film must be trimmed closely around the artwork.

Dry-transfer sheets and adhesive vinyl are useful alternatives. Dry transfers create a clean, painted appearance, while thin vinyl works well for large faction logos or masking shapes. Each material has a different thickness, so test it on spare plastic before applying it to a finished model.

Build Artwork That Prints Cleanly

Create the design in vector software when possible. Vector artwork remains sharp as it is resized, which is important for tiny warning text and repeated unit numbers. Inkscape, Affinity Designer, and similar programs can handle simple insignia without requiring advanced illustration skills.

Set the document to the printer’s actual output resolution and leave enough space between individual decals for cutting. Print a test page on ordinary paper first. Place it beside the model and check whether the lettering remains readable at the intended scale.

Color needs special attention because most home printers do not print white ink. A yellow symbol may appear transparent over dark blue armor, and pale gray can disappear over white plastic. Plan the base color around the decal or add a white underlayer by printing the design twice and stacking the pieces carefully.

Prepare and Apply Waterslide Decals

Print the sheet, allow the ink to dry fully, and seal it with two or three light coats of clear spray. Heavy coats can flood fine details or cause the paper to curl. Let each layer dry before adding the next one, then leave the sheet overnight if possible.

Cut close to the printed design, especially when using clear paper. Dip one decal in lukewarm water for several seconds, then place it on a damp surface until it begins sliding from the backing. Position it with a wet brush and remove excess water with a soft cotton swab or folded tissue.

A decal-setting solution helps the film conform to panel lines and shallow curves. Apply it sparingly, since strong solutions can wrinkle the artwork before it settles. Once dry, inspect the edges for silvering, the cloudy reflection caused by trapped air beneath the carrier film.

Match Finishes, Colors, and Weathering

The surface underneath a decal should usually be glossy. A smooth clear coat reduces air pockets and helps transparent film disappear. After all markings have cured, protect them with the final finish: matte for military armor, satin for lightly maintained machines, or gloss for polished custom builds.

Weathering can make homemade decals look integrated rather than freshly applied. Use a thin wash around panel lines, gentle sponge chipping on exposed edges, or a light dust color over the lower legs. Keep the weathering consistent with the fictional operating environment.

Color coordination also matters across the entire project. If you are developing a custom red accent, testing a custom paint mix can help you keep the faction emblem, armor panels, and auxiliary details visually related.

Avoid Common Decal Problems

The most frequent errors are oversized graphics, poor surface preparation, and insufficient sealing. Compare every design with nearby molded details before committing. A huge emblem can overwhelm a small mobile suit, while lettering that is too small becomes visual noise.

Silvering usually comes from applying decals to a rough or matte surface. Gloss the area first, use setting solution where appropriate, and press out water from the center toward the edges. If an edge remains visible after drying, a thin clear coat can reduce the contrast.

Keep spare copies of important markings. Homemade sheets are easy to damage during trimming, and some decals may fold or tear while being positioned. Label the file with the scale, color codes, and intended location so you can reproduce the design later.

Recommendations for a Reliable Workflow

• Sketch the faction symbol and test it at the model’s real scale.
• Print a plain-paper proof before using decal paper.
• Seal inkjet designs with several thin clear coats.
• Apply decals over gloss and finish with a protective topcoat.
• Save the artwork file and print extra copies of important markings.

Your original decals can become a signature feature across an entire custom Gunpla force. Post finished examples, work-in-progress experiments, and application questions in the Gundam Eclipse community so other builders can compare techniques, troubleshoot problems, and develop new faction ideas together.