When an NFC tag needs to be placed on a metal surface it must have a electrically nonconductive barrier between the metal and the inlay. To make an on metal (anti-metal) tag from a standard tag there needs to be a barrier (or wide separation) between the metal and the inlay. If the NFC tags are manufactured in rolls there is also a ‘release liner’ below the adhesive layer. When an adhesive layer is applied to the bottom of the ‘dry inlay’ (or in place of the substrate cover) it becomes a ‘wet inlay’.This combination is called a ‘dry inlay’.The inlay is typically covered with paper or waterproof plastic based material like PET (Polyethylenetherephtalate).First layer is ‘substrate’, on the substrate a antenna and NFC chip are bonded, this is called the ‘inlay’.The manufacture of NFC tags is done in layers: This post shows how to use a standard NFC tag to read when placed on metal. To discuss your on-metal NFC-RFID tag solution needs contact a solution specialist. NFC tags can be purchased to read on metal, commonly called ‘anti-metal’ tags. Put the NFC tag on metal and it will fail to read. Here is a typical round 8mm adhesive sticker tag that will read with any NFC reader when placed on stone, wood, glass, plastic, paper, and other non-metal surfaces. Standard NFC tags fail to read when placed on a metal surface. How To Use Standard NFC Sticker Tag On Metal Surface
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