Question about incubation temperature variations

[spyderrobotics]

Aluminum tape is what I have seen in most examples, and how I have my incubator and racks configured. I've only been doing this about a year now, so I fortunately haven't had any issues with this setup. What would you recommend to put over the heat tape elements instead of aluminum tape?

Heavy duty clear packing tape has been durable in all applications I have tried. Also along the side of heat tape is clear plastic with no wiring going throught it. You can screw/staple through that for mounting as well.