How to Apply Gundam Decals: Stickers, Dry Transfers, and Waterslides

Applying decals is one of the most rewarding steps in building a Gundam model kit. Whether you're adding warning markings to a Mobile Suit or panel accents to a ship, decals bring your kit to life. But with three main types—stickers, dry transfers, and waterslides—it's easy to feel overwhelmed. This guide breaks down each method, offers tips for success, and helps you choose the right approach for your build.

By the end, you'll know exactly how to apply Gundam decals like a pro, avoiding common pitfalls like silvering, tearing, or misalignment. Let's dive in!

Understanding the Three Types of Gundam Decals

Gundam model kits typically include three types of decals: stickers (also called seal stickers), dry transfers, and waterslide decals. Each has its own application method and durability. Stickers are the simplest—they have a peel-and-stick adhesive backing, similar to a label. They're great for beginners but can look thick and may peel over time.

Dry transfers are rubbed onto the plastic using a stick or your finger. They leave no carrier film, giving a painted-on look, but they require careful positioning and can break if you press too hard. Waterslide decals are the most professional option. They slide off a backing paper when wet and can be set with softening solutions for a flawless finish. Many advanced builders prefer waterslides for their realism.

• Stickers: easiest, but visible edges
• Dry transfers: no film, but fragile
• Waterslides: most realistic, requires water and setting solution

Tools You'll Need for Decal Application

Before you start, gather the right tools. For stickers, you only need a hobby knife or tweezers to position them. For dry transfers, a burnishing tool or the back of a spoon works well. For waterslides, you'll need a small container of water, a pair of tweezers, a cotton swab, and optionally a decal setting solution like Mark Softer to help the decal conform to curved surfaces.

A clean, dust-free workspace is essential. Use a cutting mat to protect your desk, and keep a pair of fine-point tweezers handy for precise placement. If you're working with small decals, a magnifying lamp can be a lifesaver.

• Tweezers and hobby knife
• Burnishing tool or cotton swab
• Water dish and setting solution (for waterslides)
• Clean workspace and good lighting

How to Apply Gundam Stickers

Stickers are the easiest to apply. Start by cutting out the sticker you want with a hobby knife, leaving a small margin around the edges. Use tweezers to peel it off the backing sheet, being careful not to bend it. Position it on the kit, then press down firmly from the center outward to avoid air bubbles.

One common issue is that stickers can look shiny and thick. To minimize this, you can apply a matte topcoat over the entire kit after finishing, which hides the sticker edges. For best results, apply stickers after panel lining and before topcoating. This method works well on kits like the Gundam GN-008GNHW/B Seravee Gundam GNHW/B HG 1:144 Model Kit where the large surfaces benefit from added markings.

• Cut close to the decal to reduce film visibility
• Use tweezers for precise placement
• Press from center out to remove bubbles

How to Apply Dry Transfer Decals

Dry transfers are trickier but offer a painted-on look. Place the decal on the desired spot, hold it firmly in place with one hand, and rub the backing with a burnishing tool or a flat wooden stick. Use even pressure and go over the entire area. Lift a corner to check if the decal has transferred; if not, rub again.

Be careful not to move the backing paper while rubbing, as this can smear the decal. Also, avoid using too much force on curved surfaces—the decal may crack. Practice on a spare piece of plastic first. This technique is perfect for adding fine markings to kits like the Gundam RX-0 Full Armor Unicorn Gundam Ver.Ka MG 1:100 Model Kit, which comes with plenty of dry transfers.

• Secure the decal with tape to prevent slipping
• Use a burnishing tool for even pressure
• Check transfer progress by lifting a corner

How to Apply Waterslide Decals

Waterslide decals give the most professional finish. Cut out the decal, then soak it in warm water for about 10-20 seconds until it slides off the backing paper. Use tweezers to slide the decal onto the model, positioning it carefully. Once in place, use a cotton swab to gently roll out excess water and air bubbles.

For curved surfaces, apply a decal setting solution to soften the decal and help it conform. After it dries, you can apply a topcoat to protect it. This method is ideal for detailed kits like the One Piece Grand Ship Red Force Model Kit where precision is key.

• Use warm water, not hot
• Slide the decal off the backing with tweezers
• Roll out bubbles with a cotton swab
• Apply setting solution for curved surfaces

Common Mistakes and How to Avoid Them

One of the most common mistakes is applying decals before panel lining. Always panel line first, then decals, then topcoat. Another issue is silvering, which happens when air gets under the decal, creating a shiny edge. To avoid this, ensure the surface is clean and use a setting solution.

Also, don't rush. Take your time to position decals accurately. If you make a mistake with a sticker, you can carefully peel it off with tweezers. For dry transfers, once they're on, they're permanent. Waterslides can be repositioned with water and a cotton swab before they dry.

• Panel line before decaling
• Clean the surface to prevent silvering
• Practice on spare parts first

Mastering decal application takes practice, but the results are worth it. Whether you're using stickers, dry transfers, or waterslides, the key is patience and the right tools. Start with a simpler kit to build your confidence, then move on to more complex builds. For your next project, consider picking up a kit with great decals like the Gundam RX-0 Full Armor Unicorn Gundam Ver.Ka MG 1:100 Model Kit and put your new skills to the test!