A tape material comprising an aluminum foil, which contributes to both of incombustibility and maintenance performance of adhesive properties when the tape material is exposed to a high temperature and high humidity environment after being adhered to a metal such as stainless steel and when exposed to a high temperature and high humidity environment and higher than 100 degrees creen after being adhered to an aluminum foil that is an own back surface of the tape material. A tape material comprising an aluminum foil, a glass fiber fabric, and an adhesive layer laminated in this order, wherein a mass of the glass fiber fabric is 600JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ Tape material. Figure 1

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