Can I build an all-in-one mash and boil?

[RufusBrewer]

3M actually makes a high-temp metallic tape…rated to 400 degrees. I’ve had it on for 2 boils using my propane burner. No issues.

OK the tape is rated for 400, what about the insulating material? What is it and what is it's max temp spec. The stuff I used is Rated at 160 deg. So I remove before cracking up to boil temps.