Quote Originally Posted by spyderrobotics View Post

The reason aluminum tape shouldn't be used is because it acts like a heat sink to the ambient air. It gives the probe more surface area to the airflow going across it which makes its readings lower than if you use standard tape. Also the metal can act as a antenna for electrical interference with the data the sensor is providing (less common). Also if you are using aluminum tape on flexwatt you could be generating a hot spot that might be prone to failure. Plus its conductive so it could pose a shock hazard or increase the fire hazard should the tape ever fail.

-Dion
Wow I am so glad I created this thread, I've seen so many helpful ideas and so far I have been able to raise the temps. However I had NO idea aluminum tape shouldn't be used to tape down the probe, that is what I have on both of my racks. I am going to change this asap. And thanks Cecilbturtle for the flattering compliment