... 4. FDA certificate PTFE(Teflon) baking liner, also named oven liner, cooking liner, baking sheet, baking foil etc. PTFE ... for contact food, chemical resistance etc. PTFE(Teflon) oven liner s applications 1. used as cooking sheets in ... 2. put it onto bottom of a oven, as a oven liner or oven foil 3. put it into toaster, as ... 18mm, 0.25mm are also available. PTFE no stick oven liner, oven sheet, bbq sheet