Should You Add an Epoxy Coating to Soft Enamel Pins?
SOFT ENAMEL PIN FINISHING GUIDE
Should you add a clear epoxy coating to soft enamel pins? Choose it when you want a smooth, glossy face and an extra barrier over the recessed color. Skip it when the raised-metal texture and crisp, low-glare finish are central to the design.
Epoxy is not automatically better, and leaving it off is not unfinished. These are two valid versions of the same soft enamel process. The correct choice depends on how the pin should feel, how it will be used, how it needs to photograph, and how you expect the surface to age.
What are soft enamel pins?
Soft enamel pins are metal pins with raised metal boundaries and color placed inside recessed areas. After the color is filled and cured, it remains below the surrounding metal lines. This difference in height creates the familiar ridged texture that can be seen and felt.
In American custom pin terminology, this process is generally called soft enamel. It may be used with stamped iron or brass, die-cast zinc alloy, and other constructions selected according to the artwork. The exact production sequence can vary by material, plating, and factory process.
Original soft enamel texture
The raised metal can be felt above the color. Light catches the metal edges separately, making outlines and recessed areas easier to read.
Smooth resin-covered surface
A clear resin layer spans the face, reducing the tactile depth and producing a glossier, slightly domed appearance.
What is a clear epoxy coating on an enamel pin?
A clear epoxy coating, often called an epoxy dome, is a transparent resin layer applied over the front of a finished pin. After curing, it creates a smooth, glossy barrier over the design. It is an optional finishing step for soft enamel pins and is also used on many printed pin constructions.
Epoxy coating and soft enamel are independent decisions. Soft enamel creates the metal-and-color structure; epoxy changes the final surface above it. Adding epoxy does not convert a soft enamel pin into a hard enamel pin.
It smooths the face
The coating bridges the recessed color and raised metal, so the original ridged texture becomes much less noticeable.
It adds gloss and reflection
The clear layer produces stronger highlights and a rounded visual depth that can make colors appear more saturated under some lighting.
It adds a barrier over the face
Direct contact reaches the resin before the recessed color, which can reduce minor abrasion to the artwork underneath.
It adds slight thickness
The dome sits above the metal surface and changes the edge feel and side profile of the finished pin.
It creates stronger highlights
Glossy epoxy can look bright and polished, but reflections may cover small lines or make product photography more demanding.
It adds another finishing step
Resin application and curing may affect the quote and production plan. The impact depends on the design, quantity, and current order details.
Soft enamel pins with epoxy vs without epoxy
What an epoxy dome does not guarantee
Marketing descriptions often turn an optional coating into a promise of complete protection. That is not technically accurate. An epoxy dome covers the front face; it does not necessarily seal every part of the product.
- It does not waterproof the entire pin. The back, edges, post, clutch, and some plating surfaces may remain exposed.
- It does not make all metal corrosion-proof. Storage, moisture, chemicals, plating quality, and base material still matter.
- It does not prevent every scratch. Wear may move from the enamel surface to the clear resin surface.
- It does not stay perfectly clear forever in every environment. Resin formulations and exposure conditions vary.
- It does not create hard enamel. Hard enamel uses a different filling and polishing approach.
- It cannot correct unsuitable artwork. Tiny text, narrow gaps, or crowded metal lines must still be fixed before production.
When should you choose soft enamel pins without epoxy?
The texture is part of the design
Choose no epoxy when customers should feel the height difference between the metal lines and color cells.
Metal detail needs to stay crisp
Raised outlines, engraved effects, and antique finishes usually read more directly without a glossy layer above them.
You prefer lower glare
An uncoated surface can make small lines easier to photograph and inspect under controlled lighting.
You want the classic soft enamel look
The recessed color and exposed raised metal are the defining visual characteristics of soft enamel pins.
The pin is mainly collected or displayed
Display pieces often benefit more from authentic texture than from an additional face coating.
You want fewer finishing variables
Leaving off epoxy removes concerns such as resin bubbles, uneven doming, surface haze, or future yellowing.
When can a clear epoxy coating be useful?
You want a smooth glossy face
Epoxy can give soft enamel pins a rounded, glass-like presentation without changing the underlying artwork construction.
The color needs an extra contact barrier
The resin takes minor surface contact before it reaches the recessed color underneath.
The project uses printed details
Many printed pin methods use a clear coating to protect the graphic, although the exact requirement depends on the printing system.
The style is promotional rather than tactile
A bright glossy face may suit giveaways, campaign pins, logo badges, and designs where touch is not the main feature.
You prefer rounded highlights
The dome can add visual depth to simple shapes and strong color blocks under suitable lighting.
The customer specifically requests it
When the desired finish is clearly understood, epoxy is a valid custom option rather than a universal upgrade.
Fast decision guide: should your soft enamel pins have epoxy?
Choose no epoxy. The clear dome reduces the tactile depth that defines traditional soft enamel.
Consider epoxy, then compare it with hard enamel. Epoxy gives a rounded resin surface; hard enamel gives a polished, nearly flush metal-and-color surface.
Epoxy may add a useful barrier, but it is not invulnerable. For demanding everyday use, also evaluate hard enamel, attachment security, plating, and storage conditions.
Discuss a printed pin process. A clear coating may be recommended, but printing method and coating requirements should be confirmed together.
Do not rely on epoxy alone. UV exposure, heat, moisture, metal, plating, adhesives, and attachments all affect long-term performance.
Ask for process-specific advice before approval. Share the artwork, intended use, expected handling, and preferred surface feel.
How epoxy affects your custom pin order
Epoxy should be confirmed as part of the order specification before production. The digital proof can identify the intended coating, but a screen cannot reproduce the exact gloss, dome height, tactile feel, or reflection of a physical resin surface.
MZIHO custom pin orders start from 20 pieces per design. Each order includes a free digital proof, revisions until approval, and free worldwide shipping. If your project requires a physical comparison between coated and uncoated finishes, discuss physical sampling separately before placing the full production order.
Frequently asked questions about epoxy-coated enamel pins
Is epoxy required for soft enamel pins?
No. Soft enamel pins can be manufactured with or without a clear epoxy coating. Leaving the coating off preserves the traditional raised-metal and recessed-color texture.
Does epoxy make soft enamel pins waterproof?
It can cover the front color surface, but it does not necessarily seal the edges, back, post, clutch, plating, or every connection point. It should not be described as making the entire pin waterproof.
Does clear epoxy prevent all scratches?
No. It adds a barrier over the artwork, but the epoxy surface itself can still become scratched or scuffed. It is better described as added protection from direct abrasion, not scratch-proof protection.
Can epoxy resin yellow over time?
Clear resins vary, but UV light, heat, chemicals, and aging can contribute to discoloration or loss of clarity. UV-resistant formulations may slow these changes, but no clear resin finish should be presented as permanently immune to aging.
Is soft enamel with epoxy the same as hard enamel?
No. Epoxy-coated soft enamel retains a soft enamel base beneath a clear resin dome. Hard enamel is filled and polished so the color sits nearly level with the metal lines. The appearance, side profile, and aging behavior are different.
Do all printed pins require an epoxy dome?
Not every printing system is identical. Many printed pins use epoxy or another clear protective finish, but some UV printing and specialty methods may use different coatings. Confirm the recommended construction for the selected printing process.
Does epoxy make enamel pin colors look darker?
A glossy clear layer can make colors appear richer under some lighting, but reflections can also affect how the design is perceived. The underlying Pantone target does not change simply because epoxy is added.
Which finish is better for collectible enamel pins?
Many collectors prefer uncoated soft enamel when the tactile metalwork is part of the appeal. Epoxy can still suit a collectible design when a glossy dome is an intentional part of the visual concept.
Choose the right finish for your custom soft enamel pins
Send MZIHO your artwork and tell us how the pins will be worn, handled, photographed, or displayed. We can help you compare classic soft enamel, soft enamel with clear epoxy, hard enamel, and printed options before production.