Sunday, April 24, 2011

Eureka! We can use autoclave tape!

Why haven't we realized it before?? The paint indicator we have been looking for could be some lower-temperature version of autoclave tape!

Autoclave tape changes color permanently to indicate whether it has been exposed to specific high temperatures and pressures that are essential to the sterilization processes of medical and scientific equipment. This is typically ~8 min at 121 degrees C (3M Autoclave Tape).

While initial google-ing shows that circuit components will stop working efficiently at ~85 degrees C, which is significantly lower than the temperature-sensing threshold of autoclave tape, we have yet to determine what temperature circuit components will reach when they blow out. If, after some initial testing, we find that these blown-out circuit components do reach temperatures exceeding 121 degrees C, autoclave tape could be a very cheap solution to our temperature-sensing predicament ($5-10 for 60 yards).

In the event that we need to detect temperatures closer to 85 degrees C, however, the following products are easy and still-cheap alternatives:
Encapsulated Indicator Labels ($31.20/100 labels)
Tempilink Sterilization Process Indicating Ink
Temperature-Indicating Liquid ($16/2 oz. bottle)

Preliminary tests will be done using autoclave tape and (possibly) color-changing nailpolish.

1 comment:

  1. Hi,

    Autoclave tape is an adhesive tape used in autoclaving heating under high pressure to sterilize to indicate whether a specific temperature and pressure have been reached. This is manufactured to fulfill the people’s needs when they do the sterilization by using the autoclave. Autoclave tape is a very important thing in a sterilization process. Thanks a lot...

    Autoclave Tapes

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