ParafiGARD™ labels are thermal-transfer printable, with a special permanent adhesive perfect for identifying hard-to-label paraffin wax blocks commonly used in histology applications. Incorporating a unique metallic foil layer, these permanent labels will allow for labeled paraffin blocks to be detected using a metal detector. As such, ParafiGARD labeled blocks reduce the chance of accidental loss of valuable samples when used in conjunction with an appropriate lab waste screening program.