Metal Badge Manufacturing Processes: 17 Techniques Explained

Two metal badges can look almost identical in a photo yet differ several times in price, feel, and lifespan. The difference is rarely the design – it is the manufacturing process. The technique used to form, color, coat, and assemble a badge determines its appearance, texture, durability, and unit cost.

This guide was prepared by Quanzhou Tuoyuan Crafts Co., Ltd., a custom badge manufacturer, as a technical reference for buyers comparing manufacturing options. It explains all 17 processes, what each one is suitable for, and how to choose among them.

Why Manufacturing Processes Determine Badge Quality and Price

When buyers compare badge options, the manufacturing process is often the hidden variable behind differences in price, feel, and lifespan. Understanding these three principles helps evaluate how each process choice affects the finished badge:

Forming process sets the ceiling: die-casting reproduces complex 3D artwork that stamping cannot, at a higher mold cost.

Coloring process sets the look: soft enamel gives vivid recessed color with raised metal borders; hard enamel gives a flat, glass-smooth, jewelry-like surface.

Finishing process sets the lifespan: plating quality, epoxy coating, and curing conditions determine how well a badge resists tarnishing, oxidation, and scratching over time.

The sections below group all 17 techniques into logical families so you can compare them at a glance.

Base Forming Processes: Stamping and Die-Casting

1. Stamping (Die-Struck) Process

Stamping is the oldest and most widely used base process for metal badges, and the default choice for school badges, corporate emblems, and commemorative medals. A custom hardened-steel die presses a sheet of copper, brass, iron, or aluminum under high pressure, forming raised and recessed relief in a single strike. Lines come out crisp, edges clean, and the solid metal structure resists deformation.

Depending on relief depth, stamping splits into two variants: low relief, which is delicate and ideal for small pins, and 3D high relief, which adds dramatic depth and weight. Stamped blanks can be finished with gold, silver, antique brass, or antique silver plating.

2. Zinc Alloy Die-Casting Process

Where stamping suits simple shapes, die-casting is built for complex designs, and it is now the mainstream process for creative and IP merchandise badges. Molten zinc alloy is injected into a precision steel mold and solidifies into shape – free from the geometric limits of stamping.

Die-casting unlocks irregular outlines, 3D hollow structures, multi-layer stacking, intricate textures, and cartoon-shaped designs. The finished base has high density and a substantial hand feel, and accepts plating, soft enamel, imitation enamel, printing, and epoxy as secondary finishes.

Coloring Processes: Soft Enamel, Hard Enamel and Imitation Enamel

3. Soft Enamel (Baked Paint) Process

Soft enamel is widely used for designs that require recessed color areas separated by raised metal borders. Enamel paste is filled into the recessed areas of a stamped or cast base, then baked at high temperature and polished. The result: saturated, accurate colors sitting below shiny raised metal borders, with a clean layered contrast. Compared with hard enamel, the colored areas remain slightly below the metal lines, creating a more pronounced tactile surface.

Many factories add a transparent epoxy dome over soft enamel to protect against scratches, oxidation, and color fading while adding a glossy depth.

4. Hard Enamel (True Cloisonné) Process

Hard enamel – known traditionally as cloisonné – is a labor-intensive color process used for high-end collectible badges. A red-copper base is stamped and repeatedly polished, then filled by hand with natural enamel powder and fired multiple times above 850°C, with color topping-up and lapping between firings, before a final polish seals the surface.

The finished surface is flat, translucent, and glass-smooth, with color sitting level with the metal lines. Because the color is fired glass, it is highly resistant to fading, scratching, and corrosion. Each firing cycle adds production time, so designs with many separate color areas are more complex to produce.

5. Imitation Enamel Process

Imitation enamel uses resin-based color paste polished to a smooth, ceramic-like surface. Colors are brighter and more vivid than true enamel, and the process does not require the multiple firing cycles of hard enamel. It is a common choice for badges, medals, and car emblems that need a polished enamel look with fewer production steps.

6. Transparent Color (Clear Resin) Process

Transparent color is a colorless resin applied into hollow or recessed areas, blending with the metal lines underneath. The tinted-glass effect creates depth and a subtle, layered visual that lifts the perceived grade of fashion-oriented badge designs.

Fine Detail Processes: Laser Engraving and Printing

7. Laser Engraving Process

A high-precision laser beam etches text, logos, serial numbers, or fine-line patterns onto the metal surface. Engraved marks are even in depth, never wear off, and are ideal for numbered limited editions, personalized inscriptions, and hidden details.

8. Pad and UV Printing Process

Beyond silkscreen, flatbed pad printing and UV printing handle full-color photographic artwork. Combined with imitation enamel or soft enamel bases, printing compensates for what enamel alone cannot render and unlocks photorealistic badge designs.

Special Effect Processes: Glitter, Glow, Quicksand and Pearl Paint

9. Glitter (Sequin) Process

Fine metallic glitter flakes – gold, silver, or holographic – are mixed into the color paste of soft enamel or imitation enamel badges. The flakes catch light from every angle, giving the badge a bright, sparkling finish that stands out in fan merchandise and collectible series.

10. Glow-in-the-Dark Process

Photoluminescent powder is blended into the color layer. After charging under bright light, the badge emits a soft glow in darkness – a favorite effect for event badges, night-market merchandise, and collectible series designed to surprise.

11. Quicksand (Sand Art) Process

A hollow chamber is filled with fine glitter suspended in flowing oil, creating a swirling sand effect that moves as the badge is tilted. The moving effect makes quicksand badges playful to handle and popular in collectible series.

12. Pearl (Mica) Paint Process

Pearl paint – also called mica paint – suspends semi-transparent mica flakes coated with titanium dioxide and iron oxide inside a clear coat. Light splits across the flakes and reflects back as a soft iridescent sheen, like the surface of a pearl, adding an understated iridescent texture to the badge surface.

Protective Coating: Epoxy Dome Finish

13. Epoxy Dome Process

Epoxy coating is the most familiar finishing step in badge production: a drop of clear liquid resin is applied to the badge surface, self-levels, and cures into a crystal protective dome. It seals out air and moisture, preventing fading, oxidation, and scratches.

Beyond protection, the dome can embed gold foil, fine glitter, dried flowers, or tiny inserts for a custom atmospheric effect. The cured surface is glossy and soft-focus, toning down the hardness of bare metal and making small pins look more refined.

Structural and Interactive Processes: Cut-Out, Sliding Track and Spinning

14. Cut-Out (Openwork) Process

Unwanted areas of the stamped or cast base are cut away, leaving an openwork design with elegant negative space. Cut-outs lighten the badge visually, pair beautifully with transparent color resin, and showcase the metalwork itself.

15. Sliding Track Process

Multiple layers are stacked with a rail mechanism so selected elements slide across the badge. The moving parts add interactivity and play value – a strong differentiator for fan merchandise and blind-box style collectibles.

16. Spinning Process

A central or outer disc rotates on an axis, letting part of the design turn freely. Combined with sliding tracks and quicksand chambers, spinning elements turn a badge from a static emblem into a small kinetic toy.

17. Plating and Surface Finishing Process

Plating is applied to the raw base before coloring and defines the color of the metal lines themselves. Standard options include gold, silver, nickel, copper, antique brass, antique silver, matte black, and rainbow multi-color plating. An anti-oxidation plating layer is commonly applied so the finish resists tarnishing from handling.

How to Choose the Right Badge Manufacturing Process

The table below compares the main process combinations by typical visual result, suitable design characteristics, key limitations, and relative production complexity:

Practical selection tips:

Match the process to artwork complexity first: fine gradient artwork belongs to printing, not enamel.

Combine processes freely – for example, die-casting can be paired with imitation enamel and an epoxy dome in a single design.

Confirm Pantone color references in writing and require a pre-production sample for any order above 1,000 pieces.

Start at 100 pieces to test a new design; scale once the market responds.

Frequently Asked Questions

What is the difference between stamping and die-casting?

Stamping (die-struck) presses a flat sheet of copper, brass, iron, or aluminum with a hardened-steel die, forming crisp raised and recessed relief in a single strike. It suits simple shapes, sharp lines, and low- or high-relief designs. Die-casting injects molten zinc alloy into a steel mold, which can reproduce irregular outlines, hollow and multi-layer structures, and cartoon shapes that stamping cannot. The trade-off is that die-casting requires a more complex mold, which raises the initial setup investment.

What is the difference between soft enamel, hard enamel and imitation enamel?

In soft enamel, color paste is filled into the recessed areas of a stamped or cast base and baked, leaving the color slightly below the raised metal borders for a layered, tactile surface. In hard enamel (cloisonné), powdered enamel is fired at high temperature and polished flat, so the color sits level with the metal lines and the surface is glass-smooth. Imitation enamel uses a resin-based paste polished to a smooth, ceramic-like finish, which delivers an enamel-like look without the firing process. The three differ mainly in surface level, texture, and production steps.

When should printing be used instead of enamel filling?

Enamel filling works best for solid color areas separated by metal borders. Printing – pad printing or UV printing – is used when the artwork contains photographic images, gradients, fine text, or complex multi-color detail that enamel cannot reproduce. A printed ink layer is thinner and less scratch-resistant than fired or baked color, so printed badges are usually combined with an epoxy dome.

Can multiple badge manufacturing processes be combined?

Yes. Several processes can be applied to one badge in sequence: die-casting forms the base, plating defines the metal color, enamel or printing adds color, and an epoxy dome adds protection. Effects such as glitter, glow powder, quicksand chambers, sliding tracks, and spinning elements can also be added to the same design. Each additional process adds production steps, so the combined stack should be reviewed for feasibility before production begins.

What does an epoxy dome do on a metal badge?

An epoxy dome is a clear liquid resin applied to the badge surface that self-levels and cures into a glossy protective layer. It seals the color layer against air and moisture, which reduces fading, oxidation, and scratches. The dome can also embed elements such as gold foil, fine glitter, or small inserts. Because it is an added curing step, it increases production time slightly.

How does plating affect the final appearance of a badge?

Plating is applied to the raw base before coloring and determines the color and finish of the metal lines themselves. Options such as gold, silver, nickel, copper, antique brass, antique silver, matte black, and rainbow plating change both the hue and the surface character of the metal. An anti-oxidation plating layer also helps the finish resist tarnishing from handling.

Which processes are suitable for moving or interactive badge designs?

Quicksand (sand art) creates visible movement inside a sealed chamber as the badge is tilted. Sliding track designs let selected layers move along a rail, and spinning designs let a disc rotate on an axis. These structures add assembly and inspection steps, and they usually work best on larger badge formats where the moving parts have enough space to operate.

What design details should be considered before choosing a manufacturing process?

The main factors are design geometry (simple shapes suit stamping, complex 3D forms suit die-casting), relief depth, color treatment (enamel, printing, or transparent resin), surface finish (plating and epoxy), fine-detail requirements, whether the design needs moving or interactive structures, durability requirements, and the production complexity of the combined process stack. Checking line thickness, color separation, and metal border width early helps avoid redesign later.

Key Takeaways

Choosing a badge manufacturing process depends on the design itself rather than on any single “best” process. The main decision factors are:

Design geometry: simple shapes and crisp lines suit stamping; irregular, hollow, or multi-layer forms suit die-casting.

Relief depth: shallow relief works for small pins; deep 3D relief adds weight and presence.

Color treatment: enamel suits solid color fields, printing suits gradients and photographic detail, and transparent resin adds glass-like depth.

Surface finish: plating defines the metal color, and an epoxy dome adds gloss and protection.

Fine-detail requirements: laser engraving handles serial numbers and fine lines; very fine color separation is limited by the filling process.

Moving or interactive structures: quicksand, sliding tracks, and spinning elements add play value but require more assembly and inspection.

Durability requirements: fired hard enamel and plated surfaces resist wear differently from printed layers.

Production complexity: each additional process step affects lead time and production cost.