G-Rework HG GQuuuuuuX Decals: A Practical Application How-To
By Newtype: Gundam Model Kits / Gunpla / Paint / Tools | Published: 2026-11-05
Category: How-to Guides
A step-by-step guide to applying G-Rework water-slide decals to the HG GQuuuuuuX, including surface prep, setter and softer use, and placement tips for panel lines and markings.
Start with a clean, glossy surface
Water-slide decals bond best to a smooth, clean surface. Before you slide a single marking off its backing, make sure your HG GQuuuuuuX parts are free of dust, grease, and fingerprint oils. A quick wipe with a soft cloth and a mild hobby cleaner is usually enough. If you have painted your kit, allow the paint to cure fully; decals applied over soft paint can trap moisture and silver later.
G-Rework recommends using setter and softer solutions for best results. Setter goes down first to help the decal grip, while softer helps it conform over curves and panel lines. You do not need to flood the surface—a thin, even coat is enough.
Applying G-Rework decals to the HG GQuuuuuuX
Work in a well-lit area and keep your hands clean. The steps below assume you have already removed the part from the runner and cleaned up nubs.
- 1. Prepare the part: Wipe the area with a lint-free cloth. If you used any mold release or sanding dust, remove it completely. A glossy surface gives the decal the best chance to sit flat.
- 2. Cut out the decal: Using a sharp hobby knife, cut around the individual marking, leaving a small border of clear film. This makes it easier to handle and reduces the chance of tearing.
- 3. Apply setter to the part: Brush a thin layer of decal setter onto the target area. Setter helps the decal adhere and reduces silvering. Avoid letting it pool.
- 4. Slide the decal into place: Soak the decal in lukewarm water until it loosens from the backing paper, then slide it onto the part. Use a soft brush or a damp cotton swab to position it. Do not let the decal fold over itself.
- 5. Blot excess water: Gently press the decal down with a dry cotton swab or a piece of paper towel to remove trapped water and air. Work from the center outward to avoid wrinkles.
- 6. Apply softer over curves and panel lines: For decals that cross raised details or sit on curved surfaces, brush a small amount of softer over the decal. Softer softens the film so it hugs the surface. Avoid poking or stretching the decal while it is soft.
- 7. Let it dry completely: Leave the part undisturbed until the decal and solutions have fully dried. Drying time varies with humidity and how much liquid you used, so check visually rather than rushing.
Placement tips for panel lines, markings, and accents
G-Rework designed these decals for adding panel lines, markings, and accents to the HG GQuuuuuuX. When placing panel-line decals, align them with the actual panel seams on the kit. For markings, refer to the placement guide if one is included, or use official line art for reference. Start with larger, easier decals to build confidence before moving to tiny accent marks.
If a decal needs to be repositioned, add a drop of water underneath before it dries. Once it has set, moving it can tear the film.
What you get with G-Rework HG GQuuuuuuX decals
- G-Rework HG GQuuuuuuX: Water-slide decals designed specifically for the HG GQuuuuuuX kit. Kit-specific decals save you from trimming generic sheets to fit, and they are sized for the model's proportions.

G-Rework HG GQuuuuuuX - G-Rework HG GQuuuuuuX: From G-Rework, a trusted brand in model customization. You can expect consistent film quality and sharp printing, which makes application more forgiving.
- G-Rework HG GQuuuuuuX: Recommended for use with setter and softer solutions for best results. Using both solutions helps the decal adhere and conform, reducing silvering and lifting.
Common pitfalls and how to avoid them
- Silvering: Trapped air under the decal causes a milky look. Prevent it by applying setter first and blotting thoroughly. If silvering appears after drying, prick the decal with a pin and apply more softer.
- Decal won't slide: The decal may need more soaking time. Do not force it; wait until it releases easily from the backing.
- Tearing: Old or brittle decals can tear. Handle them with a wet brush and avoid stretching. If a tear happens, you can sometimes piece it back together while wet.
- Curling edges: Edges that lift after drying can be pressed down with a little softer and a cotton swab. Make sure the area was clean before application.
Finishing and protection
Once all decals are dry, you can protect them with a clear coat. A gloss coat before weathering helps seal the edges, and a flat coat at the end unifies the finish. Always test your clear coat on a spare part first to ensure it does not react with the decal film.
If you plan to pose or handle the model frequently, a topcoat also reduces the chance of decals rubbing off.
