Smart cards, also known as IC cards (Integrated Circuit Cards), are cards embedded with microchips that enable data storage and secure information processing. Thanks to their large memory capacity, high data security, anti-counterfeiting capability, low equipment cost, and mature technology, smart cards are widely used across industries such as:

Banking and financial services

Public security and identification

Transportation systems

Telecommunications

Healthcare

Government and social services

Since France successfully introduced IC cards for telephone cards in 1984, the smart card industry has experienced rapid global growth. China launched its national “Golden Card Project” in 1993, accelerating both technological development and market adoption. Today, the smart card industry has become highly mature and continues to evolve with new materials and advanced production technologies.

What Are Smart Card Base Materials?

The plastic sheets used to manufacture smart cards are known as smart card base materials or IC card substrate materials. These materials serve as the physical carrier of electronic components and printed information.

Common smart card materials include:

PVC (Polyvinyl Chloride)

ABS (Acrylonitrile Butadiene Styrene)

PET (Polyethylene Terephthalate)

PC (Polycarbonate)

PETG (Modified PET)

Among them, PVC card material remains the most widely used smart card substrate due to its balanced performance and cost advantages.

In recent years, with the advancement of smart card technologies and environmental requirements, Ketian has developed several eco-friendly, high-temperature resistant, and long-life smart card materials, including PETG, PC, and PC/PBT composite materials. Each material has unique characteristics and should be selected based on specific card application requirements.

This article focuses on the key properties of PVC card material, the most common smart card base material used worldwide.

PVC Card Material for Smart Cards

PVC (Polyvinyl Chloride) is a multi-component plastic material. Depending on formulation differences, PVC can vary significantly in appearance and performance:

Transparent or opaque

Flexible and fold-resistant

Rigid with strong mechanical properties

Most PVC materials contain stabilizers and additives to enhance durability and processing performance. Special food-grade PVC formulations also exist for regulated applications.

Rigid PVC vs Soft PVC

PVC materials are generally classified into rigid PVC and soft PVC.

Rigid PVC

Rigid PVC offers:

High surface hardness

Good tensile strength

Strong rigidity similar to engineering plastics

However, rigid PVC becomes brittle at low temperatures and is sensitive to deformation stress.

Soft PVC

Soft PVC is more flexible but:

Becomes hard in low temperatures

Has lower thermal stability

May degrade under prolonged heat exposure

For smart card manufacturing, specially engineered card-grade PVC is used to balance flexibility, printability, and lamination strength.

Why PVC Card Material Is Still Widely Used

Although new smart card materials are emerging, PVC card material still holds a large global market share because:

Low production cost

Excellent printing performance

Good hot lamination compatibility

Easy processing without complex surface treatment

PVC is particularly suitable for smart cards requiring:

Magnetic stripe application

Signature panels

Embossing

Holographic security overlays

These features make PVC an ideal smart card substrate material for banking cards, telecom SIM cards, access control cards, and government ID cards.

PVC Composite Materials for Improved Performance

With advancements in plastic engineering, several PVC composite materials have been developed to enhance traditional PVC performance, such as:

PVC/ABS

PVC/PET

PVC/PE

These blends improve strength, temperature resistance, and durability while maintaining good processability.

Material Selection Standards for Smart Cards

The smart card industry integrates multiple high-tech disciplines, including:

Radio frequency technology

Polymer materials science

Adhesives

Security printing

Anti-counterfeiting technologies

Any advancement in these fields drives progress in card manufacturing.

When selecting smart card base materials, manufacturers must consider:

Material availability

Cost-performance ratio

Card function requirements

End-use application environment

Before finalizing a material, standardized physical and chemical tests are recommended. Testing standards include:

ISO 7810

ISO 7816

GB/T 17553

GB/T 17554

These standards define mechanical strength, dimensional stability, surface quality, and durability requirements for smart card materials.

Future Development of Smart Card Materials

As smart cards become more advanced and multifunctional, the demand for higher-performance substrate materials continues to grow. Smart card base materials must now support:

Contact and contactless chips

Laser engraving

Enhanced security layers

Longer service life

Ketian remains committed to investing in advanced smart card material technologies, especially in the development of high-performance and environmentally friendly composite card materials, to meet the evolving needs of global customers.

Looking for Reliable Smart Card Base Material Solutions?

Ketian provides professional PVC card material and advanced smart card substrate solutions for banking, telecom, government ID, and secure card manufacturers worldwide.

Contact Ketian to learn more about our smart card material technologies.