By RFID MFG Editorial Team · Updated June 15, 2026 · 2 min read
Inlays are the core
An inlay is the antenna-plus-chip on a thin substrate. A dry inlay has no adhesive (for laminating or embedding); a wet inlay adds adhesive to peel and stick. White (printable) labels add a coated face so you can print and encode in one pass.
HF vs UHF labels
HF labels (13.56 MHz) suit item-level, short-range uses like libraries and pharmacy. UHF labels (860–960 MHz) suit retail and logistics where long range and bulk reads matter. The choice follows the read environment, not the label shape.
Printable RFID labels
White-faced labels work with RFID-capable thermal printers (e.g. Zebra), letting you print barcode and text and encode the chip on demand — the standard for retail and warehouse roll-out.
Converting and application
Converters laminate dry inlays into tickets, cards and tags. End users apply wet inlays directly to cartons and products. Supply is reel-to-reel with custom pitch for automated application.
Choosing the chip and antenna
Inside every label, the chip and antenna set performance. UHF labels commonly use NXP UCODE 8/9 or Impinj M730/M750 — the newer chips add sensitivity and memory for item-level retail. HF/NFC labels use NTAG (phone tap) or NXP ICODE (library, longer HF range). Antenna size is the other lever: a bigger antenna reads farther, so a large carton label outperforms a small jewelry label. Tell us the read distance, item and volume and we match chip and antenna for you.
The application surface matters
A label that flies on cardboard can fail on metal or liquid, which detune a standard UHF antenna. For metal assets use on-metal labels with a foam or ferrite spacer; for bottles and bags of fluid use inlays designed for high-water-content items. Temperature and adhesive matter too — freezer, autoclave and outdoor uses each need the right face stock and adhesive. Sharing the surface and environment up front prevents read failures in the field.
Which label type?
| Need | Choose |
|---|---|
| Apply directly to items | Wet inlay / sticker |
| Laminate or embed | Dry inlay |
| Print + encode on demand | White printable label |
| Retail / logistics range | UHF label |
| Library / item-level | HF label |
Related reading
Frequently asked questions
What is the difference between an inlay and a label?
An inlay is the bare antenna-and-chip; a label is a finished inlay with a printable face and often adhesive, ready to apply.
Can I print RFID labels in-house?
Yes, with an RFID-capable thermal printer and white printable RFID labels you can print and encode on demand.
What read range do UHF labels achieve?
Typically 1–8 m depending on chip, antenna size, reader and what the label is applied to.
Can RFID labels go on metal or liquid?
Not standard ones — metal and liquid detune the antenna. Use on-metal labels with a spacer/ferrite for metal assets, and inlays designed for high-water-content items for bottles and bags. Tell us the surface and we will spec the right label.