Phermabond is a epoxy glue which has to be baked to have the best results. The stone has to be glued on the pot with a little bit of phermabond. To prepare the pot, be sure that the top surface has been cleaned (no remains of glue). The pot has to be placed in a pre-heated oven at a temperature of 265° during a time of +/- 35 minutes. After that time take out the pots and let them cool of. To take of the stone again, the pot has to be heated shortly in a burner so that the glue will be soft again. Important notice : Always keep the glue in a cool place (for example in a fridge) to prevend it from drying out.