Comparison

Offset Printed vs Enamel Badges for Detailed Logos

Choose the Process From the Artwork Hierarchy

A 28 mm badge cannot reproduce every element from a brochure, website footer or event poster. If the artwork contains a gradient logo, 1.2 mm legal line, shaded mascot and QR code on one face, the first decision is not price. It is which details must remain functional after stamping, plating, printing, filling and final inspection.

Enamel badges use raised metal partitions and recessed or polished color fills. They are strongest when the design is built from solid Pantone areas, clean outlines and visible metal borders. Offset printed badges use CMYK or spot-assisted print on a metal base, normally sealed under clear epoxy. They are better for continuous-tone graphics: gradients, photos, sponsor walls, maps, detailed mascots and QR codes.

At ZheCraft, we decide the route before tooling. Changing a badge from enamel to print after a sample failure can add 3 to 7 calendar days, plus a new plate, film, screen or setup charge. Changing from print to enamel can be slower because the artwork must be redrawn into separated color cells and a new mold may be required. For orders from 300 to 5,000 pieces, most failures come from three preventable issues: unreadable small text, color expectations that were never specified numerically, or a surface finish that does not match the buyer’s perceived-value target.

Technical Specification Comparison

Use the table as a sourcing filter before sampling. The figures below are typical for 25 to 35 mm custom metal badges made in China with butterfly clutch and individual OPP bag. Exact tolerances depend on outline complexity, base metal, plating, epoxy profile and inspection standard.

Spec item	Offset printed badge with epoxy	Soft or hard enamel badge
Best artwork fit	Gradients, photos, QR codes, sponsor walls, maps, shaded mascots, small type	Bold logos, crests, flags, service awards, club pins, collectible outlines
Typical base metal	Iron 0.8 to 1.2 mm; brass 0.8 to 1.0 mm; zinc alloy 1.5 to 2.5 mm for 3D shapes	Iron 1.0 to 1.5 mm; brass 1.0 to 1.2 mm; zinc alloy 1.5 to 3.0 mm
Minimum readable text	0.7 to 0.9 mm letter height at high contrast; 1.0 mm safer for bulk orders	1.5 to 2.0 mm letter height; 2.5 mm safer for reversed metal text
Minimum line width	0.08 to 0.12 mm printable line; specify 0.15 mm minimum for repeatability	0.15 mm absolute metal-line minimum; 0.20 to 0.25 mm preferred
Color system	CMYK with optional white underbase; Pantone simulation only unless spot print is added	Pantone solid enamel fills; gradients must be converted to stepped color bands
Surface protection	Clear epoxy dome 0.3 to 0.6 mm; flat or low-dome epoxy recommended for QR codes	Soft enamel recessed 0.2 to 0.4 mm; hard enamel polished near flush; epoxy optional
Decorative plating	Nickel, gold, black nickel or antique finish; standard decorative layer about 0.08 to 0.15 microns	0.08 to 0.20 microns standard; thicker plating improves wear on raised metal
Color tolerance	Delta E 3 to 5 typical after epoxy; whites may warm slightly	Delta E 2 to 4 typical against approved Pantone enamel chips
Size tolerance	Plus or minus 0.25 to 0.35 mm on stamped outlines	Plus or minus 0.25 to 0.35 mm; complex zinc alloy shapes may need plus or minus 0.40 mm
MOQ and price tiers	100 pcs possible; 300 economical; best tiers at 500, 1,000 and 3,000 pcs	100 pcs possible; 300 to 500 pcs better for mold and filling labor amortization
Sample lead time	5 to 8 days after final artwork approval	7 to 10 days soft enamel; 9 to 12 days hard enamel
Mass lead time	10 to 16 days after sample approval for 500 to 3,000 pcs	14 to 22 days after sample approval; hard enamel usually adds 2 to 4 days
FOB unit price at 500 pcs	USD 0.55 to 1.25 for 25 to 35 mm iron badge with epoxy	USD 0.65 to 1.65 soft enamel; USD 0.85 to 2.10 hard enamel
Main QC risk	Print shift, epoxy bubbles, dust, yellowing, glare, visible dots in flat colors	Lost detail, enamel overflow, underfill, plating bridges, polishing waves

Print is not automatically cheaper. A die-cut outline, white underbase, double-sided print, backing card, rubber clutch or retail bag can reduce the price gap to USD 0.05 to 0.20 per piece. Enamel carries tooling and more manual filling, but it often looks more valuable when the logo is simple enough to manufacture cleanly.

When Offset Print Is the Safer Route

Offset print is the correct route when the badge behaves like a miniature label on metal. Typical examples include marathon sponsor badges, conference pins with multiple logos, illustrated food products, museum artwork, map pins, album covers and mascots with shadows or texture. These designs rely on continuous artwork rather than raised metal partitions.

For a 25 to 40 mm printed badge, a common construction is 0.8 to 1.2 mm iron, stamped or laser cut, plated or painted, printed with a white underbase if needed, then sealed with epoxy. A 0.3 to 0.6 mm epoxy dome protects the print and gives depth. Above 0.7 mm, especially on a 25 to 30 mm badge, the dome can look swollen and create glare that reduces legibility.

QR codes require stricter control than decorative graphics. A printed QR code should normally be at least 10 by 10 mm for a simple URL and 12 to 15 mm if the encoded data is longer. Keep a clear quiet zone around the code, use high contrast, and avoid placing it under a steep dome. A code that scans on a PDF proof may fail on the finished badge because the curved epoxy reflects office lights. If scanability is mandatory, test the finished pre-production sample using two phone models at the expected user distance.

Offset print also has color limits. CMYK cannot guarantee every Pantone target, and epoxy may slightly warm white, cream and light gray while deepening dark blues and reds. A corporate red similar to Pantone 186 C may be acceptable at Delta E 3 to 5, but it should not be specified as an exact hard Pantone match unless the factory confirms a spot-color print route and approves a physical color standard.

When Enamel Produces the Better Badge

Choose enamel when the metal structure is part of the identity. School crests, service awards, charity ribbons, flag pins, police-style badges, club emblems and two- to six-color mascots usually look stronger in enamel. The buyer receives a formed metal product, not a printed graphic mounted on metal, which matters for employee recognition, membership programs and retail collectibles.

Soft enamel leaves color recessed between raised metal borders, typically 0.2 to 0.4 mm below the metal depending on die depth and fill volume. It gives strong contrast and is cost-effective for promotional pins. Hard enamel is filled, baked and polished nearly flush with the metal, creating a smoother face and higher perceived value. For hard enamel, polishing must be controlled; aggressive polishing can thin raised lines, soften edges or expose base metal on sharp details.

For both enamel routes, raised metal lines should not be thinner than 0.15 mm. In production, 0.20 to 0.25 mm is safer for gold, black nickel, antique finishes, tight curves and small internal islands. Color cells should be large enough for repeatable filling; narrow enamel channels below about 0.30 mm are prone to underfill, overflow or color contamination.

Enamel is the wrong choice for photographic shadows, transparent overlays, tiny disclaimers and dense sponsor marks. A gradient must be redrawn into separate Pantone bands, usually three to five steps. That can create a strong graphic style, but it is not the same image. If a mascot depends on cheek shading, eye highlights and fur texture, print will preserve it better. If it can be simplified into bold outlines and four to six flat colors, enamel will usually look more durable and collectible.

MOQ, FOB Cost and Lead-Time Planning

MOQ can be as low as 100 pieces, but the unit price is often inefficient because artwork output, mold, setup and sampling costs are spread across a small run. Practical RFQ tiers are 300, 500, 1,000 and 3,000 pieces. These tiers let procurement see whether the badge is mostly setup-driven or labor-driven.

For a 30 mm offset printed iron badge with nickel plating, epoxy dome, butterfly clutch and OPP bag, FOB China pricing commonly falls around USD 1.35 to 1.90 at 100 pieces, USD 0.75 to 1.30 at 300 pieces, USD 0.60 to 1.10 at 500 pieces and USD 0.42 to 0.85 at 3,000 pieces. Soft enamel at the same size often ranges from USD 1.50 to 2.20 at 100 pieces, USD 0.85 to 1.55 at 300 pieces, USD 0.70 to 1.35 at 500 pieces and USD 0.48 to 0.95 at 3,000 pieces. Hard enamel usually adds USD 0.20 to 0.55 per piece, more if brass, thick plating or retail packaging is required.

Lead time should be planned from final artwork approval, not from first inquiry. Printed badge samples normally take 5 to 8 days. Soft enamel samples need about 7 to 10 days. Hard enamel samples usually require 9 to 12 days because baking and polishing cannot be rushed without surface defects. For mass production after sample approval, plan 10 to 16 days for printed badges and 14 to 22 days for enamel badges in the 500 to 3,000 piece range. Add time for carton packing, export booking, freight and any Chinese holiday shutdown.

If the delivery date is fixed, define the latest acceptable ex-factory date in the RFQ. A badge needed for a trade show on May 20 may need to leave the factory by May 8 for express air freight, or much earlier for sea freight. Without this date, the factory may quote a normal lead time that is technically correct but commercially unusable.

Quality Risks and Inspection Criteria

Printed badges usually fail visually before they fail structurally. Inspect CMYK banding, visible dots in large flat color areas, print misregistration, dust under epoxy, edge bubbles, dome overflow, yellowing and scratches. On a 30 mm badge with a border, print shift over 0.20 mm is normally visible. For tight registration around a logo, specify a maximum shift of 0.15 to 0.20 mm and approve a physical sample, not only a digital mockup.

Enamel badges fail through filling and finishing defects. Common problems include underfill, enamel overflow onto raised metal, pinholes, plating stains in recesses, rough edges, polishing waves on hard enamel and color specks from contaminated filling tools. A hard enamel surface should feel smooth, but a practical surface-level tolerance of plus or minus 0.10 mm is normally acceptable if there are no sharp rims, exposed base metal or obvious low spots.

For normal promotional orders, use general inspection level II with AQL 2.5 for major defects and AQL 4.0 for minor defects. Critical defects should be zero tolerance: broken pins, sharp burrs, detached magnets, wrong logo, unreadable mandatory text, rust, heavy plating contamination, toxic odor or any finish that transfers to skin or fabric. Premium retail and employee-award programs may justify AQL 1.5 major and 2.5 minor, plus separate appearance limits for front-face defects.

Basic mechanical checks should be included for both routes. Pin posts should be perpendicular enough for normal attachment and should not detach under a practical pull test. For butterfly clutch badges, a 3 to 5 kg pull check is a common internal benchmark. For magnetic badges, confirm magnet grade, adhesive method and holding strength on the intended fabric or backing card.

Sample Approval Checklist

A useful sample approval freezes measurable standards so the reorder, production lot and final inspection are judged against the same criteria. Attach these points to the purchase order or pre-production approval sheet.

• Confirm finished size and outline tolerance, for example 30.0 mm wide plus or minus 0.30 mm.
• State base metal and thickness, such as 0.8 mm iron for printed badges or 1.2 mm iron for enamel badges.
• For offset print, approve CMYK proof, white underbase, epoxy profile, maximum print shift and QR scan result on the finished sample.
• For enamel, approve Pantone codes, minimum raised metal line width, fill level, polishing standard and acceptable recessed depth.
• Specify plating finish and target decorative thickness, commonly 0.08 to 0.15 microns for standard nickel or gold.
• Define attachment type, such as 8 mm butterfly clutch, rubber clutch, safety pin, magnet, deluxe clutch or cufflink fitting.
• Confirm packing method, inner-carton quantity and export carton limit, commonly under 15 kg gross weight.
• Record inspection plan, usually general inspection level II with AQL 2.5 major and 4.0 minor unless the order is premium retail.

For QR-code badges, require a finished-sample scan test under office light and warehouse light. If the code is marginal, enlarge it, reduce the epoxy dome, move it away from curved edges or place the QR code on a flat backing card. Do not approve a production run based only on a paper printout.

RFQ Details That Prevent Rework

If the process is uncertain, send two artwork files: the original full-detail artwork and a simplified enamel version with gradients removed. Ask the factory to quote offset print with epoxy and soft or hard enamel using the same size, attachment, plating and packing assumptions. This avoids a false comparison where one quote is for a basic promotional pin and the other is for a premium badge.

A complete RFQ should include finished size, quantity tiers of 300, 500, 1,000 and 3,000 pieces, base metal preference, plating finish, attachment, packing, target delivery date and latest acceptable ex-factory date. State the priority clearly: color accuracy, fine detail, QR scanability, low cost or perceived value. If legal text must remain readable, specify the minimum letter height and request a close-up sample photo beside a ruler.

The best factory recommendation is often a revised specification rather than a simple print-or-enamel answer. Practical changes include enlarging a 28 mm badge to 32 mm, deleting 0.6 mm text, widening metal lines to 0.25 mm, converting a gradient into four Pantone fills, using flat epoxy over a QR code or moving sponsor marks to the backing card. These adjustments cost less than remaking tooling after a failed sample and give procurement, design and QC teams a standard they can enforce.

Have a project? Send your artwork and target quantity and we’ll reply with a detailed quotation within 12 working hours.