* Foil tape is rated to 230 degrees (F). What I have found in playing with the tape is this: the tape will take higher temps without damage to the foil but the glue becomes soft and melt at 280 degrees. We are covering the tape with foil and masking tape both of which shield the foil tape from the higher temperate of curing so the tape does not react badly to our firing temp of 280 degrees.
We are ready to apply clay ... next time.
Have a great day!