Decal setting solutions are special liquids that help decals conform, stick, and blend into the surface of a scale model so they look painted on rather than like stickers. They’re one of the biggest “quality upgrades” you can add to your finishing process.

Below is a clear, hobby‑friendly breakdown of what they are, how they work, and when to use each type.

What Are Decal Setting Solutions?

Decal setting solutions are chemical agents designed to:

• Soften the decal film
• Improve adhesion
• Eliminate silvering
• Help decals conform to surface details
• Make markings look painted on

They come in two main types: setting solutions and softening solutions.

1. Setting Solutions

These help the decal stick better and settle smoothly onto the surface.

Common examples:

• AMMO Ultra Decal-Set
• Micro Set
• Tamiya Mark Fit (regular)

What they do:

• Break surface tension so the decal slides into place
• Improve adhesion between decal and gloss coat
• Reduce air bubbles
• Prepare the surface for softening solutions

When to use:

• Under the decal, right before you slide it on
• On smooth surfaces
• For most decals as a first step

2. Softening Solutions

These chemically soften the decal film so it can sink into panel lines, rivets, and texture.

Common examples:

• AMMO Ultra Decal-Fix
• Micro Sol
• Tamiya Mark Fit Strong
• Solvaset (very strong)

What they do:

• Soften the decal so it conforms to details
• Make the film shrink tightly onto the surface
• Remove wrinkles as it dries
• Help decals look painted on

When to use:

• After the decal is positioned
• On complex surfaces
• Over rivets, welds, bolts, and curves

Important: Softening solutions make decals look wrinkled at first. This is normal—don’t touch them. They tighten as they dry.

How Setting & Softening Solutions Work Together

1. Apply setting solution to the gloss surface
2. Slide the decal into place
3. Wick away excess water
4. Apply softening solution on top
5. Let it dry untouched

This combo gives you the smoothest, most realistic results.

Why They Matter

Decal solutions solve the biggest decal problems:

• Silvering
• Wrinkles
• Poor adhesion
• Raised edges
• Decals that won’t conform to curves

With them, even thick decals can look like they were painted on.

Pro Tips for Using Decal Solutions

• Use gloss coat first for best results
• Don’t touch the decal while softener is working
• Use strong solutions sparingly—they can melt decals
• Seal decals with a clear coat afterward
• Practice on spare decals to learn strength levels