Materiais · PVC Degradável
O desempenho do PVC, com um plano de saída
A mesma prensa, as mesmas fechaduras, a mesma durabilidade — mas concebido para se decompor em condições de aterro, com relatórios de teste ASTM independentes que o comprovam.
O PVC degradável incorpora aditivos que permitem ao material degradar-se após a eliminação em condições de aterro biologicamente ativas, verificado em testes ASTM D3826 e D5208. Para a sua operação, nada muda: mesma espessura, mesmo comportamento de impressão, mesmas opções de chip e o mesmo manuseamento na receção.
Destaques
Degradabilidade documentada
Relatórios de teste ASTM D3826 / D5208 independentes, disponíveis para o seu processo de compras.
Nenhuma alteração de processo
Substituição direta do PVC padrão — mesmas fechaduras, codificadores e hábitos.
Agravamento moderado
Um pequeno acréscimo face ao PVC padrão, bastante abaixo dos cartões em madeira ou de acabamento especial.
Degradable PVC — technical data
- Card body
- Card-grade PVC compounded with an organic degradation accelerant — no change to sheet chemistry a guest or encoder could detect
- Look and feel
- Visually and mechanically identical to standard PVC: same whiteness, stiffness and print response
- Finished thickness
- 760 μm / 30 mil (CR80), laminated from the same core-and-overlay build as standard PVC
- Heat stability
- Vicat softening 80–86 °C — unchanged from standard PVC. Compostable PLA/PHA sheet softens at 50–60 °C by comparison
- Mechanical strength
- Tensile strength ≥ 40 MPa (MD); surface matte Rz 4–10 μm; wetting tension ≥ 38 dyn/cm
- Degradation
- Accelerated anaerobic biodegradation demonstrated under ASTM D5511 (simulated landfill conditions)
- Shelf behaviour
- Fully stable in storage, encoding and daily guest use — degradation only activates in a microbe-rich landfill environment
- Chip compatibility
- All 125 kHz and 13.56 MHz chips, magstripe and hybrid builds — identical to standard PVC
Inside a degradable PVC card
The build is deliberately identical to a standard PVC card — same five-layer laminate, same inlay bonding, same encoders. The only change is inside the resin: an organic additive that lets landfill microbes colonise and break down the polymer chain after disposal.
≈ 760 μm finished — indistinguishable from standard PVC in use
- Clear overlay · 40–100 μm Degradable-grade film; protects print exactly like standard overlay
- Printed core · 100–400 μm Additive-compounded PVC core, front graphics
- RFID inlay Etched antenna + chip, adhesive-film bonded
- Printed core · 100–400 μm Back graphics and guest instructions
- Clear overlay · 40–100 μm Sealed back face
When degradable PVC is the right call
- You want an eco upgrade with zero workflow change: same encoders, same printers, same guest experience, same price ballpark.
- Heat stability matters: it keeps PVC’s 80–86 °C Vicat point, where compostable PLA sheet (50–60 °C) risks warping in hot mail and parked cars.
- Your brand reports ESG: an ASTM D5511 test trail gives sustainability teams a citable line item.
Degradable PVC questions
Does degradable PVC look or feel different from standard PVC?
No. The degradation accelerant changes nothing a guest, encoder or printer can detect — whiteness, stiffness, print response and heat stability all match standard card PVC. That is the point: an eco swap that requires no retraining and no new hardware.
How fast does it actually degrade?
Under ASTM D5511 test conditions (anaerobic, microbe-rich — simulating an active landfill) the material shows substantially accelerated biodegradation versus standard PVC, which persists indefinitely. Real-world rate depends on landfill activity, so we cite the test method rather than promising a fixed number of years.
Why not just use compostable PLA or PHA cards?
Bio-based PLA/PHA card sheet composts cleanly to CO₂ and water, but it softens at 50–60 °C — a card mailed in summer or left on a dashboard can warp before first use — and it costs more. Degradable PVC keeps PVC’s 80–86 °C stability and price while fixing the end-of-life story.
Will cards start breaking down in storage or in guest use?
No. Degradation needs sustained contact with the microbe-rich, oxygen-poor environment of a landfill. In a drawer, wallet or encoder the card behaves exactly like standard PVC for years.
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