Product Overview
RFIDSU's epoxy keyring NFC tags combine a printed NFC inlay with a tough full epoxy dome coating, creating a key fob that is both visually striking and built to last. The epoxy layer seals the inlay against water, scratches, and daily mechanical wear, providing IP67 waterproof protection while delivering a glossy, premium finish that enhances logo and color printing.
These custom NFC keychain tags are available with NTAG213, NTAG215, NTAG216, and NTAG424 DNA chips — covering everything from simple URL redirects to secure AES-128 encrypted applications. The distinctive CD-style center hole (4–15 mm customizable) fits standard key rings, carabiner clips, and elastic lanyards. Standard shape is a 30mm round disc, with custom shapes, sizes, and colors available via OEM/ODM service.
Whether used as a loyalty card replacement, a smart access credential, a digital business card keychain, a social media NFC tag, or a branded promotional giveaway, the epoxy keyring NFC tag offers long service life, full color customization, and reliable tap-to-read performance across all NFC-enabled smartphones and readers — no app required.
Key Features
Full Epoxy Dome Protection
Epoxy resin dome seals NFC inlay against water (IP67), scratches, and daily wear. Provides a premium glossy finish for long-lasting durability.
CD-Style Center Hole Design
Precision center hole (4–15 mm) fits standard key rings and carabiner clips. Turns every NFC keychain into a functional, always-on smart accessory.
Tap-to-Link NFC Technology
One tap on any NFC smartphone instantly redirects to URLs, vCards, or loyalty programs. No app required. Works with iPhone 7+ and Android 4.0+.
Multiple NFC Chip Options
Choose NTAG213/215/216 or NTAG424 DNA with AES-128 encryption. All NXP chips comply with ISO 14443A / NFC Forum Type 2 standards.
Full Color Custom Printing
CMYK full-color, screen printing, or Pantone logo printing. Supports QR codes, serial numbers, holographic foil, and full-bleed brand artwork.
Custom Shape & Size
Standard 30mm round or custom die-cut shapes. Outer diameter 30–50 mm, center hole 4–15 mm, thickness 1.2–2.5 mm.
Product Specifications
| Parameter |
Specification |
| — NFC / RFID PARAMETERS — |
| NFC Chip Options |
NXP NTAG213 · NTAG215 · NTAG216 · NTAG424 DNA · ICODE SLIX (on request) |
| Frequency |
13.56 MHz (HF / NFC) |
| Protocol |
ISO 14443A · NFC Forum Type 2 |
| User Memory |
NTAG213: 144 bytes · NTAG215: 504 bytes · NTAG216: 888 bytes · NTAG424 DNA: 416 bytes |
| UID |
7-byte factory-set UID (read-only) |
| Read Range |
1–6 cm (depending on chip and reader device) |
| Write Endurance |
100,000 write cycles (NTAG213/215/216) · 200,000 cycles (NTAG424 DNA) |
| Data Retention |
Up to 10 years |
| Security (NTAG424 DNA) |
AES-128 encryption · Secure Unique NFC (SUN) · Tag Tamper detection |
| Pre-encoding Options |
URL / Text / vCard / Social Media Links / Custom NDEF · Serial number encoding available |
| — PHYSICAL PARAMETERS — |
| Shape |
Round with center hole (CD-style) · Custom die-cut shapes available |
| Outer Diameter |
30–50 mm (standard 30mm · customizable) |
| Center Hole Diameter |
4–15 mm (customizable) |
| Thickness |
1.2–2.5 mm (including epoxy dome) |
| Substrate Material |
PVC (white or Pantone-matched colors) |
| Surface Coating |
Full epoxy dome (both sides) · Glossy / Matte / Transparent / Holographic |
| Waterproof Rating |
IP67 equivalent (full epoxy encapsulation) |
| Printing |
CMYK full color · Screen printing · Pantone color · Holographic foil |
| Hardware |
Metal split ring (standard) · Carabiner clip · Elastic lanyard cord (optional) |
| Operating Temperature |
-20°C to 65°C |
| Packaging |
100 pcs/bag · Custom retail packaging available |
| — ORDER INFORMATION — |
| MOQ |
100 pieces per design |
| Free Samples |
Available (up to 5 pcs) before bulk order |
| Production Lead Time |
7–15 days (depending on quantity and customization) |
| Shipping |
DHL, FedEx, UPS, Sea freight available |
Applications
Loyalty & Membership Programs
Replace traditional plastic loyalty cards with durable NFC keyring tags. Members tap to earn points, check balances, or access exclusive offers at POS terminals.
Smart Access Control
Issue NFC keyring credentials for office buildings, gyms, co-working spaces, and residential complexes. NTAG424 DNA with AES-128 encryption ensures secure entry verification.
Social Media NFC Tags
Tap-to-follow on Instagram, TikTok, Facebook, or LinkedIn with one touch. Perfect promotional NFC keychains for events, trade shows, and brand marketing campaigns.
Digital Business Cards
Encode vCard or LinkedIn profile URL on NTAG215/216. Hand out a branded keyring instead of paper cards — contact details transfer instantly via a single tap.
Brand Promotion & Giveaways
Custom-printed waterproof NFC keychain giveaways for corporate events, trade shows, and retail promotions. Recipients tap the tag to land on a product page, social profile, or promotional campaign URL.
Hotel & Hospitality Key Fobs
Provide guests with durable, logo-branded NFC key fobs for room access, spa entry, and service requests — a premium alternative to disposable key cards with longer service life.
Why Choose RFIDSU?
10+
Years in RFID Manufacturing
OEM/ODM
Full OEM/ODM Custom Service
Free
Samples & Technical Support
Shenzhen RFIDSU Technology Co., Ltd. is a professional epoxy NFC keychain manufacturer with 10+ years of experience in NFC tag production. We specialize in designing and producing epoxy NFC key fobs, NFC stickers, and smart card products for loyalty programs, access control, and brand promotion customers worldwide. Our products comply with ISO 14443A / NFC Forum standards and are exported to 50+ countries with full OEM/ODM support.
Customization Options
We offer full custom NFC keyring OEM/ODM service for epoxy NFC keyrings. Specify your chip, size, shape, printing, and encoding requirements — we handle everything from artwork to delivery.
NFC Chip Selection
Choose NTAG213 (basic URL/text), NTAG215 (larger data, popular for vCard), NTAG216 (maximum memory), or NTAG424 DNA (AES-128 secure applications). ICODE SLIX and F08 also available on request.
Logo & Artwork Printing
Full CMYK color printing, screen printing, or Pantone color matching. Support for complex logos, gradients, and full-bleed artwork. UV resistant inks for outdoor durability. Provide AI/PDF artwork or request our design team.
QR Code & Serial Number
Laser-engraved QR codes, sequential serial numbers, UID printing, and data encoding services. Each NFC keychain can be individually programmed before shipping with a tracking file provided.
Color & Finish Options
Custom Pantone-matched epoxy colors, holographic foil effects, transparent dome, glossy or matte finish. PVC base in white, black, or any brand color. Free color samples available before bulk production.
Pre-encoding & Serialization
Factory encoding of URL, plain text, vCard, or custom NDEF records. Sequential serial number encoding, UID-linked databases, and unique QR code generation. Each waterproof NFC keychain tag is tested and verified before shipping.
Packaging & Hardware
Standard metal split ring included. Upgrade to carabiner clip, lobster clasp, or custom lanyard attachment. Retail polybag, header card, branded box packaging, or individual OPP bag labeling all available.
Frequently Asked Questions
Which NFC chip should I choose — NTAG213, NTAG215, NTAG216, or NTAG424 DNA?
NTAG213 (144 bytes) is ideal for storing a single URL, short text, or basic contact info — covering most loyalty and access control use cases. NTAG215 (504 bytes) is best for vCard data or larger text payloads. NTAG216 (888 bytes) handles complex multi-record NDEF or custom binary data. NTAG424 DNA (416 bytes + AES-128 encryption) is recommended for security-sensitive applications such as product authentication, VIP credentials, and anti-counterfeiting. All chips work with any NFC-enabled smartphone without a dedicated app.
Are these tags compatible with all smartphones?
Yes. NTAG213/215/216/424 DNA chips comply with NFC Forum Type 2 Tag specification and ISO 14443A. They are natively supported by Android devices (Android 4.0+) and iPhone (iPhone 7 and later, iOS 13+ for background reading). No app installation is required for URL or vCard reading on modern smartphones.
What does "epoxy dome" mean, and why does it matter?
Epoxy dome refers to a clear resin coating applied over the printed inlay surface — on both front and back sides. The resin cures to form a hard, slightly raised dome that provides IP67-level water and dust resistance, protects artwork from scratches, UV exposure, and everyday abrasion. This significantly extends the visual life of full-color printed designs and gives the finished product a premium, glossy appearance compared to uncoated PVC tags.
Can you pre-encode the tags before shipping?
Yes. We offer factory pre-encoding services for URL, plain text, vCard, or custom NDEF records. For serialized encoding (unique URL per tag, sequential numbers, or UID-linked records), please provide your encoding template and we will produce a tracking file with each tag's UID and corresponding encoded data. All tags are tested with an NFC-enabled phone before shipping.
What is the minimum order quantity?
MOQ for standard custom epoxy NFC keyrings is 100 pieces per design. Custom Pantone colors or special finishes may require a higher MOQ — typically 500 pcs. Free samples (up to 5 pcs) are available for quality verification before placing a bulk order. Production lead time is 7–15 days depending on quantity and customization requirements.
Do you offer OEM/ODM services for branded NFC keychains?
Absolutely. As a professional NFC keychain manufacturer, we provide comprehensive OEM and ODM services including custom logo printing, custom packaging design, unique shapes, Pantone color matching, holographic effects, and data encoding. We can also assist with NFC tag management platform integration. Contact us for a custom quote and free sample evaluation.
