... % waterproof, NDEF format 3.One side with epoxy, one side with sticker Epoxy NFC StickerAn Epoxy Card tags is ... ABS, aluminium/cooper antenna, Plus different chips, and with beautiful epoxy on. The total thickness is around ... 3.2mm.Epoxy can be one side with epoxy or two side.It can be stuck ... on somewhere, being like a strap, but with the latest RFID technology.Smart, Easier, Fashion, and ...