Materiales · PETG
El material de tarjeta del ingeniero
El copoliéster sin cloro especificado para documentos de identidad y tarjetas de seguridad social — más resistente que el PVC en el uso diario, con un grado de alta temperatura (Vicat 88–100 °C) para climas donde el PVC llega a su límite.
El PETG es un poliéster libre de cloro que resiste el agrietamiento, el calor y la flexión repetida mejor que el PVC. Se imprime casi tan bien, admite los mismos chips, y está disponible en grados aptos para contacto alimentario — una opción adecuada para espacios de bienestar y credenciales de larga vida.
Puntos destacados
Más resistente que el PVC
Mayor resistencia a la flexión y al impacto, para tarjetas emitidas una sola vez y usadas durante años.
Polímero libre de cloro
Una construcción libre de PVC que algunas políticas de sostenibilidad exigen específicamente.
Grados de contacto alimentario
Opciones de material con grado de contacto alimentario FDA para aplicaciones especiales.
PETG copolyester — technical data
- Card body
- Chlorine-free PETG copolyester — the substrate specified for national ID and social-security card programs
- Sheet grades
- Clear film 60–100 μm; clear core 100–400 μm; white core 80–400 μm; high-heat core 80–400 μm
- Heat stability
- Vicat softening 74–82 °C standard grades; 88–100 °C high-heat grade for hot-climate properties
- Clean chemistry
- No chlorine, no plasticisers, no optical brighteners; combustion products are CO₂ and water
- Surface
- Double-sided matte, Rz 4–11 μm; wetting tension ≥ 36–38 dyn/cm — same print processes as PVC
- Mechanical strength
- Tensile strength ≥ 38–40 MPa (MD) — bank-card durability
- Finished thickness
- 760 μm / 30 mil (CR80) laminated build, identical hand-feel to PVC
- Chip compatibility
- All 125 kHz and 13.56 MHz chips; magstripe and hybrid builds
Inside a PETG key card
PETG laminates exactly like PVC — cores, inlay, overlays fused in a hot press — so it drops into existing card programs without new tooling. The difference is the resin itself: a copolyester with no chlorine in the backbone, which is why ID-card programs that must guarantee clean incineration specify it.
≈ 760 μm finished — specify the 88–100 °C high-heat core for desert properties
- PETG overlay · 60–100 μm Clear film grade; scratch protection and foil carrier
- White PETG core · 80–400 μm Front print face, no optical brighteners
- RFID inlay Etched antenna + chip, adhesive-film bonded
- White PETG core · 80–400 μm Back print face
- PETG overlay · 60–100 μm Sealed back face
When PETG is the right call
- Your climate punishes cards: the high-heat grade (Vicat 88–100 °C) shrugs off dashboards, poolside sun and summer mailing that soften PVC.
- Your brand standard bans chlorinated plastics: PETG delivers PVC-class durability with clean-combustion chemistry.
- You want ID-card credibility: the same substrate family runs in government national-ID and social-security card programs worldwide.
PETG key card questions
What is the real difference between PETG and PVC key cards?
Chemistry, mostly. PETG is a chlorine-free copolyester with no plasticisers, and it burns to CO₂ and water — which is why national ID programs specify it. In daily use the two are hard to tell apart: similar stiffness, print quality and durability. PETG typically costs slightly more.
How much heat can a PETG card take?
Standard PETG grades soften at 74–82 °C (Vicat A120) — comparable to PVC. The high-heat grade moves that to 88–100 °C, which is the spec to choose for desert resorts, unattended outdoor kiosks and summer direct-mail programs.
Do PETG cards work with our existing locks and encoders?
Yes. The chip and antenna are identical to a PVC build, and the card meets the same CR80 dimensions. Locks, encoders and printers cannot tell the difference.
Is PETG the eco option?
It is the clean-chemistry option: chlorine-free with benign combustion products, and no optical brighteners. For a stronger end-of-life story, compare degradable PVC (ASTM-tested landfill degradation), wooden cards or plastic-free paper cards.
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