Encoding Blank Plastic Cards for Secure Access: A Guide

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There is a moment in every growing organization when a paper-based system stops working. The sign-in sheet that anyone can forge. The punch card that gets lost in a coat pocket. The manual process that consumes staff time and creates security gaps. That moment is exactly when encoding blank plastic cards for secure access becomes not just an option, but a necessity.

Plastic Card ID has spent more than 25 years helping businesses across the United States solve that exact problem. With over 100,000 customers served and more than 50 million cards delivered, the team at CPE understands what it takes to build a card program that actually works, whether you need 50 cards this month or 50,000.

This page is your comprehensive guide to understanding how encoding works, which card types support which technologies, and how to choose the right combination of blank cards, printers, and encoding features for your specific security application.

Card Technology Primary Use Case Encoding Type Read Range
HiCo Magnetic Stripe Access control, ID Contact magnetic read Swipe contact
LoCo Magnetic Stripe Hotel keys, loyalty Contact magnetic read Swipe contact
Proximity (125kHz) Building access Contactless RFID Up to 4 inches
MIFARE Smart Chip Secure access, transit Contactless smart Up to 4 inches
MIFARE DESFire High-security facilities Encrypted contactless Up to 4 inches
Dual Interface Multi-system environments Contact contactless Both modes

A blank plastic card is, in its simplest form, a canvas. It is a CR80-format PVC card measuring 3.375 by 2.125 inches and 30 mils thick, built to the ISO 7810 standard. What makes it useful for secure access is not the card itself, but what gets written into or onto it during the encoding process. That process varies significantly depending on the technology embedded in the card.

Encoding can happen in several ways. Magnetic stripe encoding writes data magnetically onto a stripe embedded on the card surface. RFID and smart chip encoding writes data wirelessly into a tiny embedded antenna or chip. Each method has its own hardware requirements, security profile, and ideal application. Understanding these differences is the foundation of building any successful secure access card program.

Magnetic stripe cards come in two coercivity ratings, and the difference matters more than most buyers initially realize. High-coercivity (HiCo) cards require a stronger magnetic field to encode, which makes the data harder to accidentally erase. These are the right choice for employee ID badges, access control cards, and any application where the card will be used repeatedly over months or years.

Low-coercivity (LoCo) cards are easier to encode and re-encode, making them ideal for hotel key cards, event credentials, and other short-term applications. If your card program involves frequent reissuance or temporary access, LoCo cards offer a cost-effective, flexible solution without sacrificing functionality.

Most modern desktop card printers from brands like Evolis, Zebra, and Fargo can handle both HiCo and LoCo encoding via an integrated or add-on magnetic stripe encoder module. This means your in-house team can encode each card at the moment of printing, giving you complete control over access data from issuance to expiration.

Proximity cards operating at 125kHz have been the workhorse of commercial building access for decades. An employee taps or waves the card near a reader, the reader interrogates the card's embedded antenna, and the door opens. No swipe required. No physical contact with a reader slot that can wear out over time. The simplicity is part of the appeal.

These cards are pre-encoded at the factory with a unique facility code and card number. That encoded identity cannot be changed in the field, which is actually a feature, not a limitation. It means the card's identity is permanent and tamper-resistant. Your access control software maps the card's ID to the appropriate permissions, giving you flexibility without compromising the card's integrity.

MIFARE smart cards represent a significant step up in both capability and security. Available in multiple variants including MIFARE Classic, MIFARE Plus, and the high-security MIFARE DESFire standard, these cards support encrypted communication between card and reader. DESFire cards in particular use AES encryption, making them resistant to cloning attacks that can compromise older proximity card systems.

Smart chip cards can store significantly more data than magnetic stripe cards and can hold multiple applications on a single card. A university ID card, for example, might serve as a dormitory access credential, a library card, a cafeteria payment token, and a campus event pass, all on one MIFARE DESFire card with separate encrypted data sectors for each function.

For organizations handling sensitive facilities, financial data environments, healthcare records access, or high-traffic secure entry points, investing in MIFARE DESFire technology is a smart, scalable decision that pays dividends in long-term security posture. CPE stocks these cards and can walk your team through selecting the right variant for your reader infrastructure.

Not all blank plastic cards are created equal, and the right choice depends heavily on your intended use. The good news is that CR80 cards, the standard credit-card-sized format, are compatible with virtually every card printer, badge holder, access reader, and laminating system on the market. They are the default starting point for nearly every card program in existence.

Beyond the standard CR80 blank, Plastic Card ID offers a range of specialty formats including clear and frosted cards, colored card stock, and custom die-cut shapes for organizations that want their cards to stand out visually while still carrying encoded data. Clear PVC cards, for instance, allow printed designs to show through in unique ways and are fully compatible with magnetic stripe and RFID encoding.

The standard 30 mil CR80 card is the foundation of every serious in-house card program. It prints cleanly with dye-sublimation technology, accepts magnetic stripe overlays, and can be laminated for extended durability. Buying blank cards in bulk and printing in-house consistently reduces your per-card cost compared to ordering pre-printed cards from an outside vendor every time your needs change.

For organizations that issue cards frequently, such as schools, healthcare facilities, corporate campuses, and government agencies, maintaining a stock of blank CR80 cards alongside a desktop card printer creates a responsive, on-demand issuance system. A new employee, a replacement credential, or a temporary access card can be produced in minutes rather than days.

Clear plastic cards create a distinctive visual impression without sacrificing any of the functional properties of standard PVC. They accept dye-sublimation printing, magnetic stripe encoding, and RFID embedding just as standard cards do. Organizations like casinos, upscale hotels, and premium membership clubs often use clear or frosted cards to reinforce brand identity while maintaining full access functionality.

Custom die-cut cards in non-standard shapes are another option for organizations seeking differentiation. Key fob formats, rounded-corner variations, and uniquely shaped access tokens can all be produced with embedded encoding technology. These are not merely cosmetic choices. A distinctive card format reinforces perceived value and reduces the likelihood that cardholders will leave it at home.

For organizations where the card itself is part of the experience, CPE offers luxury metal cards in stainless steel, brass, and gold finishes. These cards carry real weight, both physically and symbolically. A metal membership card communicates exclusivity and permanence in a way that no plastic card can match. They can be laser-engraved with unique identifiers and paired with RFID or magnetic stripe inserts for full functional access capability.

VIP clubs, executive membership programs, high-end gyms, and premium loyalty programs have all found that switching to metal cards increases retention and perceived program value. When the card itself feels valuable, cardholders treat the program as valuable. That is a behavioral insight worth building into your program design from the start.

Card Format Best For Encoding Compatible
Standard CR80 PVC Employee ID, loyalty, access Mag stripe, RFID, chip
Clear PVC Premium brand programs Mag stripe, RFID
Frosted PVC Boutique, hospitality Mag stripe, RFID
Custom Die-Cut Events, branding, fobs RFID, mag stripe
Metal Card VIP, executive membership RFID insert, laser engraved

The card itself is only half the equation. The printer, and specifically the encoding modules built into it, is what transforms a blank card into a functional access credential. Plastic Card ID carries a full lineup of desktop and high-volume card printers from Evolis, Zebra, and Fargo, each matched to different production volumes, encoding needs, and budget considerations.

Choosing the right printer at the start of your program saves significant expense and frustration later. A printer that cannot encode the card technology you are using, or that cannot handle the volume you need, creates bottlenecks that undermine your entire card program. Getting this match right from day one is something the team at CPE takes seriously.

For organizations issuing fewer than a few hundred cards per month, a compact desktop printer offers a highly cost-effective path to in-house card production with full encoding capability. Models like the Evolis Primacy 2, the Zebra ZC300, and the Fargo HDP5000 all offer optional magnetic stripe encoding modules and RFID encoding capabilities depending on configuration.

Desktop printers put card issuance directly in the hands of your staff, eliminating the lag time and cost associated with ordering pre-printed or pre-encoded cards from an outside vendor. New hire starting Monday? Print and encode the access card Friday afternoon. A member loses their card? Reissue in minutes, not days.

To reach our team for printer recommendations, call 800.835.7919. Our specialists will ask the right questions about your volume, technology requirements, and budget to match you with the exact printer and card combination your program needs.

Universities, large healthcare networks, corporate campuses with thousands of employees, and government facilities need more than a desktop printer. High-volume card printing systems from Fargo and Zebra can process hundreds of cards per hour, with inline encoding, lamination, and quality checking all happening in a single automated pass.

These systems integrate with existing HR databases and access control platforms, enabling fully automated card issuance workflows. When a new employee is added to the HR system, the card program software can automatically trigger a print-and-encode job without manual intervention. Automation at this level dramatically reduces human error and issuance time for programs of any serious scale.

A card printer is only as reliable as the supplies that feed it. Plastic Card ID stocks a comprehensive range of printer ribbons, including YMCKO full-color ribbons for ID badges, monochrome ribbons for single-color printing, and specialty topcoat ribbons that add a protective laminate layer to every printed card. Using manufacturer-matched ribbons extends print head life and ensures consistent print quality over time.

Cleaning kits are equally important and frequently overlooked. Dust and debris accumulation inside the printer causes print quality issues, encoding errors, and premature head failure. Regular cleaning with proper cleaning cards and swabs, available through CPE, keeps your printer performing at specification and protects the investment you have made in your card program infrastructure.

Encoding blank plastic cards for secure access is not an abstract technology exercise. It solves real, tangible problems for organizations of every type. Understanding how other organizations use these technologies can help you identify the best approach for your own environment.

From healthcare to higher education, from corporate security to casino operations, the consistent thread is this: a well-designed card program pays for itself many times over in reduced security incidents, faster access workflows, and lower administrative overhead compared to paper-based or manual systems.

Corporate campuses and multi-building facilities rely on encoded access cards to manage who goes where and when. A single encoded HiCo magnetic stripe or proximity card can serve simultaneously as a visual ID badge, a door access credential, a parking gate token, and a time-clock swipe card, all within one card program managed through a single access control platform.

The ability to instantly deactivate a card at the software level, without physically retrieving it, is one of the most powerful security features of a modern encoded card program. When an employee leaves the organization, their access is revoked in seconds from a desktop workstation. That kind of immediate, software-controlled access revocation is simply not possible with key-based or paper-based systems.

  • HiCo magnetic stripe cards for reliable swipe access and high-frequency use
  • Proximity cards for hands-free tap-and-go building entry
  • MIFARE DESFire for high-security zones requiring encrypted authentication
  • Dual-interface cards for environments with mixed reader infrastructure
  • Photo ID printing with dye-sublimation for visual verification at checkpoints

Casino player tracking cards represent one of the most sophisticated uses of encoded plastic cards outside of government security environments. Each card carries a unique encoded player ID that links to a centralized database tracking play history, comp balances, and tier status. The encoded card is the connective tissue between every slot machine, table game, and hotel system in the property.

Hotel key cards are another high-volume, high-turnover encoded card application. LoCo magnetic stripe cards remain the dominant technology for hotel room access due to their low cost and ease of re-encoding between guests. Smart RFID key cards are increasingly popular in higher-end properties where contactless entry and multi-room access capabilities justify the added investment.

Universities issuing student and faculty ID cards face a unique challenge: high annual turnover, diverse access needs across dormitories, labs, libraries, and administrative buildings, and the need to integrate with multiple legacy systems. MIFARE smart cards handle this complexity elegantly, with multiple data sectors that can be managed independently by different campus departments.

Healthcare facilities have even stricter requirements. Staff access to medication dispensing systems, patient record terminals, and restricted clinical areas demands a card technology that cannot be easily duplicated or spoofed. MIFARE DESFire encryption provides the authentication strength that healthcare security protocols require, and Plastic Card ID can supply these cards in any quantity your program demands. Call 800.835.7919 to discuss your healthcare credential program requirements with a knowledgeable specialist.

With so many card types, encoding technologies, and printer options available, how does an organization choose the right combination? The answer depends on four key factors: your existing reader infrastructure, your security requirements, your issuance volume, and your budget. Getting clarity on these four factors before purchasing anything saves time, money, and frustration.

CPE acts as a strategic partner in this process, not just a card vendor. The team's depth of experience across more than 100,000 customer programs means they have almost certainly worked with an organization like yours before and can provide guidance that generic product listings simply cannot.

The single most important factor in choosing an encoded card is compatibility with your existing access control readers. If your building uses 125kHz proximity readers, purchasing MIFARE smart cards will not work, those cards require 13.56MHz readers. Getting this wrong means replacing either your cards or your readers, and neither is a trivial expense.

Before ordering any encoded cards, identify the exact reader technology installed at every access point in your facility. Your access control vendor or facilities manager should be able to provide this information. Confirming reader compatibility before ordering is a non-negotiable first step in any new or expanding card program.

Higher security encoding technologies like MIFARE DESFire offer substantially stronger protection against cloning and unauthorized duplication, but they also require more sophisticated encoding equipment, software integration, and ongoing key management. For a small office with modest access control needs, this level of complexity may be unnecessary and expensive.

A practical approach is to match security technology to actual threat level. A small retail business issuing employee IDs may find that standard HiCo magnetic stripe cards provide all the access control functionality they need at a fraction of the cost of a smart card system. A data center or pharmaceutical facility, on the other hand, should not cut corners on card security technology.

  • Can I encode cards myself in-house? Yes, with the right printer configuration. Most modern desktop printers from Evolis, Zebra, and Fargo offer magnetic stripe and RFID encoding modules as built-in or add-on features.
  • Do I need special software to encode cards? For magnetic stripe encoding, most card design software can write data to tracks 1, 2, and 3. Smart card encoding typically requires integration with your access control platform or a dedicated card management system.
  • What is the minimum order quantity for encoded blank cards? Plastic Card ID serves programs as small as 50 cards per month, so there is no requirement to buy thousands at a time unless your volume demands it.
  • Can one card carry multiple encoding technologies? Yes. Combo cards with both a magnetic stripe and an embedded RFID antenna are available, as are dual-interface smart cards with both contact and contactless capability.
  • How long do encoded cards last? HiCo magnetic stripe cards typically retain reliable data for 10 years or more under normal use. RFID and smart chip cards have no mechanical wear and can last the life of the card material itself.

Building a secure access card program is not something most organizations do more than once or twice in a decade. That infrequency means the people making purchasing decisions rarely have deep expertise in card technology, printer selection, or encoding systems. That is precisely where a partner with 25 years of hands-on experience becomes invaluable.

Plastic Card ID has helped organizations ranging from small businesses with a few dozen employees to enterprise operations issuing tens of thousands of cards per year. The catalog is comprehensive, the expertise is real, and the commitment to long-term program success is what separates CPE from a simple online card vendor.

A Complete Program from One Source

Every component of a successful card program is available through Plastic Card ID: blank CR80 cards in standard and specialty formats, magnetic stripe cards in HiCo and LoCo, proximity and RFID smart cards including MIFARE DESFire, desktop and high-volume card printers, printer ribbons, cleaning kits, card carriers, and sleeves. Sourcing everything from a single trusted partner simplifies procurement and ensures compatibility across every element of your program.

Value-added services including card affixing and mailing mean that even organizations without in-house printing capability can run a fully functional card program through CPE. Custom production runs, bulk orders with fast turnaround, and knowledgeable support at every step make Plastic Card ID a genuinely comprehensive resource for USA-based card programs of every scale.

Serving Every Industry, Every Scale

Whether you operate a healthcare network, a corporate campus, a university, a hotel property, a casino, a retail loyalty program, or a membership organization, Plastic Card ID has the cards, technology, and expertise to support your program. There is no minimum order requirement that excludes small programs, and there is no maximum that limits large ones. The same quality and service applies whether you need 100 cards or 100,000.

The card programs that perform best are built on solid foundational decisions: the right encoding technology for the reader infrastructure, the right card format for the application, and the right printing solution for the issuance volume. CPE helps organizations make those decisions correctly from the start, avoiding costly retrofits and technology mismatches down the road.

Get Started Today

Ready to build or upgrade your secure access card program? The team at Plastic Card ID is ready to help you navigate every decision with confidence.

Call 800.835.7919 now and speak directly with a card program specialist who understands your industry and your needs.

The right cards, the right encoding, the right partner. That combination is what Plastic Card ID delivers every day to organizations across the United States. Call 800.835.7919 and let Plastic Card ID put that experience to work for your program today.

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