Different Card Types: Materials, Functions & Smart Card Guide

Different Types of Cards: Materials, Technologies, Functions and Buying Guide

Modern cards can serve very different purposes, from simple membership and loyalty programs to RFID access control, hotel key systems, employee identification, transportation, secure credentials and payment applications.

However, terms such as plastic card, smart card, RFID card, NFC card, magnetic stripe card, ID card and access card describe different aspects of a card. Some describe the physical material, some describe the embedded technology, and others describe the final application.

For B2B buyers and card manufacturers, a professional specification should therefore separate four questions: What is the card made from? What technology does it contain? How will it be printed or personalized? What function must it perform?

Wallis supplies PVC, PETG and polycarbonate card materials, overlays, RFID prelam inlays and customized cards for card manufacturers, security integrators, distributors and OEM programs.

Four Ways to Classify Card Types

These categories can overlap. For example, an employee access credential might be a PVC card by material, a 13.56 MHz contactless smart card by technology, a retransfer-printed photo ID by personalization and an access-control card by function.

Card Types by Material

PVC Cards

PVC cards are widely used for ID cards, membership cards, loyalty cards, hotel key cards, access cards, gift cards and other high-volume commercial applications.

PVC offers a useful balance of cost, surface quality, printability and lamination performance. Card-grade PVC can be supplied as printable core sheet, transparent overlay, magnetic-stripe overlay and part of an RFID card structure.

Standard PVC remains especially attractive for short- to medium-life commercial credentials where high-volume production and printing economics are important.

PET and PETG Cards

PET and PETG are polyester-based card materials used when the card requires a different balance of toughness, temperature resistance, lamination behavior and durability from conventional PVC.

PET and PETG should not automatically be treated as identical materials. The exact grade, printable surface, overlay and lamination process should be confirmed according to the required card construction.

PVC/PET Composite Cards

Composite cards combine polymer layers to obtain advantages that may not be available from conventional PVC alone. PVC/polyester constructions are frequently evaluated for high-use credentials or printing and lamination processes involving additional heat.

Polycarbonate Cards

Polycarbonate or PC cards are particularly important for long-life identification and higher-security credential programs.

Suitable PC structures can combine multiple polycarbonate layers with printing, chips, antennas, transparent security features and laser-reactive layers. Laser personalization can place photographs, names, numbers and other variable information within the card body rather than relying only on surface printing.

Metal Cards

Metal cards are typically produced from stainless steel, aluminum or other suitable metal constructions when weight, tactile feel and premium visual presentation are important.

Typical applications include VIP cards, premium membership cards, luxury business cards, commemorative cards and high-end branded credentials.

Metal Card Finishing

Metal cards can incorporate laser engraving, chemical etching, printed graphics, brushed surfaces, mirror finishes, cut-out patterns and other decorative processes depending on the metal and card design.

Can Metal Cards Use RFID or NFC?

Metal can interfere with radio-frequency antenna performance, so an RFID or NFC-enabled metal card requires a specifically engineered antenna and card construction. Buyers should not assume that an ordinary metal card can simply receive a standard RFID inlay without RF redesign and testing.

PVC vs. PETG vs. PC vs. Metal Cards

Standard Card Size: CR80 and ISO ID-1

Many identification, access, membership, hotel and smart cards use the standard CR80 / ISO ID-1 format, approximately 85.60 × 53.98 mm.

A finished thickness around 0.76 mm or 30 mil is common for many standard cards. However, the exact thickness must match the printer, reader, chip, antenna, laminate and application requirements.

Specialized cards can also use non-standard dimensions or thicknesses, but machine compatibility should always be verified before bulk manufacturing.

Card Types by Technology

Printed Cards Without Electronics

A basic plastic card can function entirely through printed information. Business cards, membership cards, loyalty cards, warranty cards and promotional cards may require no electronic components at all.

Barcode Cards

A barcode is printed onto the card and read optically. Each card can contain the same barcode or variable data unique to an individual user.

Barcode cards are commonly used for loyalty programs, membership identification, inventory links, ticketing and applications where inexpensive machine-readable identification is sufficient.

QR Code Cards

QR codes can connect a physical card to a website, profile, membership record, ticket, digital menu, registration page or other digital resource.

The QR code itself contains no radio-frequency electronics. It is an optically readable printed feature.

Magnetic Stripe Cards

Magnetic stripe cards store encoded information in a magnetic stripe attached to the card surface. They remain common in hotel key systems, legacy access systems, membership programs and other applications with installed magnetic-stripe readers.

HiCo vs. LoCo Magnetic Stripe

HiCo and LoCo refer to magnetic coercivity. HiCo stripes generally require a stronger magnetic field to encode and are often selected for credentials requiring repeated use. The correct stripe should be selected according to the existing encoder and reader system.

Contact Smart Cards

A contact smart card contains an integrated circuit connected to visible contact pads. The card must be inserted into a compatible reader so the reader contacts the chip interface.

Contact chips can contain memory or processing capability depending on the application. Their actual security is determined by chip architecture, application software, cryptography and system design.

RFID Contactless Cards

An RFID card contains a chip connected to an antenna. Information is exchanged wirelessly with a compatible reader without the electrical contacts required by a contact smart card.

Wallis supplies RFID prelam inlays containing antennas and chips for subsequent card lamination and punching.

NFC Cards

NFC is a form of short-range contactless communication operating at 13.56 MHz. NFC cards can be used for smartphone interaction, digital business cards, marketing, selected access systems and other compatible applications.

Not every 13.56 MHz RFID card should automatically be called an NFC card. The exact chip, protocol and required smartphone or reader compatibility must be confirmed.

Dual-Frequency and Multi-Technology Cards

A multi-technology card can combine two or more functions, such as LF access plus HF smart-card functionality, RFID plus magnetic stripe, or contact and contactless interfaces.

These constructions are useful when organizations must support legacy and new reader systems during a migration or when one card serves several applications.

RFID Card Frequency Options

Frequency alone does not define interoperability or security. A buyer should provide the exact chip family, reader model or existing card reference whenever compatibility is critical.

Card Printing and Personalization Methods

Offset Printing

Offset printing is widely used in centralized mass card production for high-quality static graphics such as backgrounds, logos, brand colors and card artwork.

Screen Printing

Screen printing can be used for solid colors, specialty inks, security graphics and other effects depending on the card substrate and ink system.

Digital and Variable-Data Printing

Digital processes are particularly useful when each card requires different names, photographs, numbers, barcodes or QR codes.

Direct-to-Card Printing

Direct-to-card printing transfers the image directly onto the card surface. Smooth PVC card stock is commonly used, although the exact card and printer compatibility should be confirmed.

Retransfer Printing

Retransfer printers first print an image onto an intermediate transfer film and then bond that image to the card. This approach can provide over-the-edge graphics and is useful for smart cards with less uniform surfaces.

Because retransfer processes introduce heat, the thermal stability of the card material should be considered when selecting PVC, composite, PETG or polycarbonate card stock.

Embossing

Embossing mechanically forms raised characters such as names or numbers in the card body. It can create a tactile premium effect and is still used in selected membership, gift and legacy card designs.

Embossing should not by itself be treated as a high-security anti-counterfeiting technology. Modern secure credentials typically combine multiple physical and electronic security features.

Hot Foil and Metallic Finishing

Hot foil can add metallic logos, text or decorative features for VIP, membership, gift and promotional cards.

Laser Engraving

Laser-reactive polycarbonate can support permanent personalization inside a multilayer card structure. This technology is particularly important for long-life and higher-security identity credentials.

Card Types by Function

ID Cards

Identification cards provide visual or electronic information used to associate a credential with a person.

Typical information can include a photograph, name, employee or student number, expiration date, barcode, QR code or embedded electronic credential.

ID card material selection depends on expected lifetime, personalization process, security level and whether RFID or smart-card technology is required.

Access Control Cards

Access-control cards communicate credential information to a reader controlling doors, gates, turnstiles, elevators, parking systems or other restricted areas.

Technologies can include magnetic stripe, LF proximity, HF contactless smart cards, NFC-compatible systems or multi-technology credentials.

Employee Cards

Employee cards can combine visual identification with attendance, physical access, cafeteria, printing or other authorized workplace applications.

Student and Campus Cards

Campus cards can combine student identification, building access, attendance, library, transportation, printing and other institution-specific services in one credential.

Hotel Key Cards

Hotel key cards are designed to work with compatible electronic lock systems. Magnetic stripe and contactless RFID technologies are both used depending on the installed locks.

Hotels replacing existing cards should provide the lock manufacturer, card technology and current card reference rather than ordering only by appearance.

Membership Cards

Membership cards are used by clubs, gyms, associations, retailers and other organizations to identify members and connect physical cards with membership records or benefits.

Simple membership cards may use only printed numbers or barcodes, while premium programs can incorporate RFID, NFC, embossing, hot foil or other features.

Loyalty Cards

Loyalty cards link customers to rewards programs. They can use printed barcodes, QR codes, magnetic stripes or contactless technology according to the retailer's POS and customer-management system.

Gift Cards

Merchant gift cards can use printed numbers, barcodes, QR codes, magnetic stripes or other technologies connected to the retailer's stored-value platform.

Payment Network Gift Cards

Open-loop payment gift cards operating through major payment networks are different from ordinary promotional or merchant gift cards. They require an authorized issuing and payment-program structure as well as applicable payment-card specifications and security requirements.

A custom card manufacturer should therefore not treat a payment-network card as simply a printed PVC gift card project.

Payment Cards

Credit, debit and other payment cards are specialized financial credentials involving chip, personalization, security, certification and issuer requirements beyond ordinary commercial card production.

Transit Cards

Contactless smart cards are widely used for public transportation and ticketing where fast tap-based transactions and reliable repeated use are required.

Event and Visitor Cards

Event credentials and visitor badges can range from simple printed identification to QR, barcode or RFID-enabled cards linked to registration and entry-management systems.

Business Cards

Plastic, transparent, metal and NFC-enabled business cards can provide a more durable or interactive alternative to conventional paper business cards.

Card Security Features

Security cards should normally use several complementary security layers rather than relying on one decorative feature.

Holographic Overlay

Holographic overlays provide visible authentication elements while protecting printed card graphics from surface wear.

UV Security Printing

UV-visible graphics can provide an additional inspection feature that is viewed under suitable ultraviolet illumination.

Microtext and Fine-Line Graphics

Fine text and detailed security backgrounds can make casual reproduction more difficult and support visual document inspection.

Laser Personalization

Laser-reactive PC can integrate personalized information inside the card construction, making alteration fundamentally different from replacing conventional surface printing.

Electronic Authentication

Electronic credential security depends on chip capabilities, protocol, cryptographic design, key management, encoding and the reader or backend system. A stronger card-body material alone does not create stronger electronic authentication.

Typical Smart Card Construction

Core Sheet

The card core provides structural thickness and typically carries printed graphics. PVC, PETG and PC are among the material families used for card core construction.

RFID Prelam Inlay

A prelam RFID inlay contains an antenna and chip positioned inside plastic layers before final card lamination and punching.

Transparent Overlay

Clear overlays protect printed graphics and can also incorporate magnetic stripes, holographic elements, special coatings or other card-specific features.

Lamination

Card layers are combined under controlled temperature, pressure and time. Material compatibility is important to control bubbles, delamination, warping, shrinkage and finished thickness.

Punching and Finishing

Laminated sheets are punched into individual cards and can then receive personalization, encoding, signature panels or other finishing operations.

How to Choose the Right Card Type

1. Define the Card Function

Start with the application: ID, access control, hotel key, membership, loyalty, gift, transit, business card or another function.

2. Choose the Card Material

Select PVC, PET/PETG, composite, polycarbonate or metal according to expected lifetime, temperature, printing, security and premium-design requirements.

3. Define the Reader Technology

When the card interacts with an existing system, identify the barcode scanner, magnetic-stripe reader, RFID reader, hotel lock, access reader or payment infrastructure before selecting the technology.

4. Confirm the Exact Chip

Do not request only “RFID card” or “13.56 MHz card” when compatibility matters. Specify the chip family, memory, protocol or existing credential reference.

5. Select the Printing Method

Determine whether cards will be factory offset printed, digitally personalized, printed with a direct-to-card printer, retransfer printed or laser engraved.

6. Define Security Features

Specify hologram, UV graphics, microtext, laser personalization, signature panel, serial numbers or other authentication requirements where relevant.

7. Confirm Card Size and Thickness

CR80 / ID-1 is common, but exact finished dimensions and thickness should be compatible with the intended printer, reader, card dispenser or lock.

8. Define Expected Service Life

A disposable event credential, hotel card, employee badge and long-life government ID require very different material and durability specifications.

9. Test the Card in the Actual System

Sample cards should be tested with the intended printer, encoder, reader, lock, access-control system or other production and operating equipment before bulk production.

Quality Control for Custom Card Production

• Card dimensions: verify length, width, corner radius and punching accuracy.

• Finished thickness: confirm card thickness and tolerance.

• Flatness: inspect card warpage after lamination.

• Layer adhesion: check bubbles, peeling and delamination.

• Printing: inspect color, registration, text and graphics.

• Variable data: confirm names, numbers, photographs, QR codes and barcodes against the data file.

• Magnetic stripe: inspect location, appearance and encoding where required.

• Chip position: verify contact-chip or RFID-chip position against card construction.

• Antenna continuity: confirm RFID antenna integrity.

• RF performance: verify communication with compatible readers.

• Encoding: validate programmed data and required electronic functions.

• Holographic overlay: verify position and visual appearance.

• Laser personalization: inspect contrast, position and data accuracy where applicable.

• Surface quality: inspect scratches, contamination, marks and finishing defects.

What Information Should Buyers Include in a Card RFQ?

• Card function: ID, access, membership, hotel, loyalty, gift, transit or other application.

• Card material: PVC, PET/PETG, composite, PC, metal or existing sample.

• Dimensions: CR80 / ID-1 or custom size.

• Thickness: target finished thickness and tolerance.

• Quantity: sample, validation quantity and commercial volume.

• Artwork: PDF, AI or other production artwork.

• Printing: offset, screen, digital, DTC, retransfer or another process.

• Personalization: name, photo, number, barcode, QR code, signature or laser engraving.

• Magnetic stripe: specify HiCo/LoCo and encoding requirement if applicable.

• RFID frequency: LF, HF or UHF.

• Chip: exact chip model or approved equivalent.

• Reader: reader model, hotel lock or access-control system where compatibility is important.

• RFID layout: provide antenna or card-layout requirements where applicable.

• Security features: hologram, UV, microtext, laser feature or other requirement.

• Finish: gloss, matte, transparent, frosted, metallic or other surface.

• Metal-card processing: specify engraving, etching, cut-outs, finish and RFID requirement where applicable.

• Packaging: individual packing, sequential arrangement or other project requirements.

Why Work With Wallis for Card Materials and Custom Cards?

PVC, PETG and PC Card Materials

Wallis supplies multiple card-body material families, allowing card manufacturers to select substrates according to cost, printing, durability, lamination and security requirements.

Core Sheets and Overlays

White, colored and transparent card core materials can be combined with suitable overlays for printed and laminated card production.

RFID Prelam Inlays

Wallis supplies RFID prelam inlays with embedded chip and antenna structures for contactless smart-card manufacturing, including LF, HF and UHF project requirements.

Magnetic Stripe and Security Options

Magnetic-stripe overlays and additional visual-security requirements can be discussed according to the finished card structure.

From Raw Card Materials to Finished Cards

Buyers can discuss raw core sheets, overlays, RFID prelam inlays, blank cards or customized finished-card production according to their manufacturing workflow.

Sample Testing Before Bulk Production

Samples allow buyers to verify printing, lamination, color, dimensions, RF performance, encoding and compatibility with the actual card printer or reader before commercial production.

Frequently Asked Questions About Different Card Types

What are the main types of cards?

Cards can be classified by material, technology or function. Common examples include PVC cards, PETG cards, PC cards, metal cards, magnetic stripe cards, smart cards, RFID cards, NFC cards, ID cards, access cards, membership cards, loyalty cards, hotel cards and gift cards.

What is the most common material for plastic cards?

PVC is widely used for commercial plastic cards because it provides a practical balance of cost, printability and card-manufacturing performance.

What is the difference between PVC and PETG cards?

PVC is widely used for economical general-purpose cards, while PETG can provide different thermal, toughness and lamination characteristics. The correct material depends on the card construction and production process.

Why is polycarbonate used for secure ID cards?

Polycarbonate supports durable multilayer card structures and can incorporate laser-reactive personalization layers, making it useful for long-life and higher-security identification credentials.

What is a smart card?

A smart card contains an integrated circuit capable of storing or processing information. Smart cards can use a physical contact interface, a contactless interface or a combination depending on the card design.

What is an RFID card?

An RFID card contains a chip and antenna that communicate wirelessly with a compatible radio-frequency reader.

What is the difference between RFID and NFC cards?

RFID is a broad category of radio-frequency identification technologies. NFC is a specific short-range contactless technology operating at 13.56 MHz. Not every RFID card is an NFC card.

Are all 13.56 MHz cards NFC cards?

No. Multiple contactless card technologies operate at 13.56 MHz. Chip and protocol compatibility must be confirmed before calling a card NFC-compatible.

What is an RFID prelam inlay?

An RFID prelam inlay is a semi-finished card layer containing the antenna and chip inside plastic material before final printing, lamination and card punching.

What is a magnetic stripe card?

A magnetic stripe card stores encoded information in a magnetic stripe on the card surface and requires a compatible magnetic reader.

What is the difference between HiCo and LoCo magnetic stripes?

HiCo and LoCo describe different magnetic coercivity levels. HiCo is often selected for cards exposed to repeated use, while LoCo can suit applications where cards are encoded less frequently or replaced more often. Reader and encoder compatibility should be confirmed.

What is the standard plastic card size?

Many cards use CR80 / ISO ID-1 dimensions of approximately 85.60 × 53.98 mm.

What is the common plastic card thickness?

Approximately 0.76 mm or 30 mil is common for standard ID-size cards, although specific technologies and applications can require different constructions.

What is the difference between direct-to-card and retransfer printing?

Direct-to-card printing transfers the image directly to the card surface. Retransfer printing first prints onto an intermediate film and then bonds the image to the card, which can improve edge coverage and printing over embedded smart-card structures.

Can cards contain both RFID and magnetic stripes?

Yes. Multi-technology card constructions can combine an RFID inlay with a magnetic stripe when compatibility with two systems is required.

Can one card contain two RFID technologies?

Yes. Dual-frequency card constructions can integrate two compatible RFID technologies when the antenna layout, chip positions and finished thickness are properly engineered.

Can metal cards use NFC?

They can, but the metal affects antenna behavior. NFC-enabled metal cards therefore require a specialized card construction and RF testing rather than a standard metal plate with a conventional inlay.

Is embossing a security feature?

Embossing can add tactile personalization, but it should not be relied on as the main anti-counterfeiting system. Higher-security credentials normally combine multiple physical and electronic security technologies.

What type of card is best for access control?

The best access card is the card that matches the installed reader and required security level. Buyers should identify the reader, frequency, chip and credential system before choosing the material or card appearance.

What type of card is best for a hotel key card?

The card must match the installed hotel-lock technology. Existing systems may use magnetic stripe or contactless RFID cards, so buyers should provide the lock model or an existing card sample.

What type of card is best for a loyalty program?

A simple loyalty program may need only a printed barcode or QR code. More interactive programs can use magnetic stripe, RFID or NFC depending on the POS and customer-management infrastructure.

Can Wallis supply PVC, PETG and PC card materials?

Yes. Wallis supplies card core sheets and overlay materials in PVC, PETG and polycarbonate families for different card-manufacturing requirements.

Can Wallis supply RFID prelam inlays?

Yes. Wallis supplies RFID prelam inlays with embedded chip and antenna structures for LF, HF and UHF card projects.

Should I test card samples before bulk production?

Yes. Sample cards should be tested for dimensions, printing, lamination, encoding, chip or antenna performance and compatibility with the actual printer, reader, hotel lock or access-control equipment.

What information does Wallis need for a custom card quotation?

Provide card application, material, dimensions, thickness, quantity, artwork, printing, personalization, chip or magnetic-stripe technology, reader information, security features and packaging requirements.

Choose Card Type by Function First, Then Material and Technology

The easiest way to select a card is to start with its required function. Once the application is clear, buyers can determine the required material, lifetime, printing method, chip, antenna, reader compatibility and security features.

A low-cost printed loyalty card, an RFID hotel key, a premium metal membership card and a laser-personalized polycarbonate ID may all share similar dimensions, but their material structures, production processes and technical requirements are fundamentally different.

Send Wallis your card application, existing reader or system, required material, chip technology, printing artwork, finished thickness and quantity to discuss suitable card materials, RFID prelam inlays or finished-card samples.