Autoclave tape is used as a process indicator in steam sterilizers The clean process is completed when the color stripe on the tape is observed to change from yellow to black after 20 minutes in the exhaust clean at 121C It features an aggressive pressuresensitive adhesive designed to adhere to a variety of wraps so that the pack stays secure during sterilization Adhesive seals pack the wrapping material securely but provide a clean peel from the material Process indicator turns black when exposed to proper steam