Gundam Waterslide Decals Guide 2026: How to Apply & Where to Buy the Best Decals

Last updated: August 7, 2026 — by Takara Model Studio

What Are Gundam Waterslide Decals?

Waterslide decals are ultra-thin film markings that slide off a paper backing onto your Gundam model using water. Unlike sticker-style dry transfers, waterslides conform to curved armor surfaces and panel lines — giving your build authentic markings, unit insignia, caution labels, and custom designs that look painted on. They are the gold standard for realistic Gunpla finishing.

▸ Types of Gundam Decals

1. Official Bandai Waterslide Decals

Screen-printed by Bandai for specific Gunpla kits. Perfect color matching, exact fit for intended kit. Available as standalone sheets or included in Ver.Ka and Premium Bandai releases. Best for builders who want anime-accurate markings without guesswork.

2. Third-Party Custom Decals

Designed by independent studios — often sharper print quality than Bandai's, with metallic gold/silver options and unique designs Bandai doesn't offer. Popular brands: DL Model Decal, Evolution Studio, Snow Flame. Best for custom builds wanting unique markings or metallic accents.

3. Universal Generic Decals

Sheets of common caution marks, EFSF/Zeon insignia, numbers, and warning labels — not tied to any specific kit. Best for adding detail to painted builds or replacing damaged original decals.

▸ How to Apply Waterslide Decals — Step by Step

Cut out the decal — trim as close to the design edge as possible with a sharp hobby knife.
Soak in warm water — dip in water (25-30°C) for 15-30 seconds until the film loosens from backing.
Slide onto the model — use tweezers to hold the backing, gently push the film off onto the model surface with a cotton swab.
Position with water — while still wet, adjust position with a toothpick or cotton swab before it dries.
Press and absorb — roll a dry cotton swab from center outward to push out air bubbles and excess water.
Apply decal softener — brush Mr. Mark Setter or Micro Sol over the decal to melt the film into panel lines and curved surfaces for a painted-on look.
Seal with topcoat — once fully dry (2-4 hours), spray a clear topcoat to protect the decal.

PRO TIP

Always apply decals onto a gloss surface — matte paint causes silvering (trapped air bubbles that look white). Spray a gloss clear coat first, apply decals, then finish with your desired final topcoat (matte/semi-gloss/gloss).

▸ Popular Gundam Decal Kits Available Now

▸MG Gundam Barbatos Waterslide Decals — High-quality third-party sheet with metallic gold accents for Barbatos' armor details.
▸HG Mighty Freedom Gundam Waterslide Decals — Custom markings designed specifically for the SEED Freedom movie kit.
▸HG GQuuuuuuX Waterslide Decals — Unique designs for the newest GQuuuuuuX kit line.
▸PG Exia Waterslide Decals — Comprehensive sheet covering PG Exia's complex armor panels.

▸ Gundam Decal FAQ

What is the difference between waterslide decals and dry transfers?

Waterslides use water to release the film from backing — they conform to curved surfaces and look painted on. Dry transfers are rubbed on with pressure — they sit on top of the surface, don't conform to curves, and can look thicker. Waterslides are universally preferred for Gunpla.

Do I need decal softener?

Yes — decal softener (Mr. Mark Setter, Micro Sol) melts the decal film so it sinks into panel lines and conforms to curved armor. Without it, decals can look like stickers floating on the surface.

Can I print my own custom Gundam decals?

Yes — you can print custom waterslide decals using an inkjet printer and blank decal paper (available on Amazon or hobby shops). Print your design, spray with clear acrylic sealer to fix the ink, then apply like normal waterslides. However, home-printed decals lack the print sharpness and color accuracy of professionally screen-printed sheets.

Shop Gundam Decals at Takara Model Studio →

Gundam waterslide decals, third-party custom sheets, and decal tools — all in one place. Free worldwide shipping on orders over $50.

© Takara Model Studio. Gundam and all related characters are trademarks of Sotsu, Sunrise, and Bandai Namco Filmworks Inc. This article is for informational purposes. Third-party decal brands mentioned are independent products.