Special cloth texture high temperature indicator tapes show the words “sterilized” in bold letters after standard sterilizing process. The tape sticks to almost any surface or shape, holds fast in dry oven temperature. It withstands acids, oils and greases.
Parafilm M® is a thermoplastic self sealing film that holds moisture
loss to a minimum and offers excellent barrier protection to the
content of tubes, beakers, flasks, petri dish, vials, etc.