... 500 F 2.Chemical corrosion resist High sealing PTFE coated fiberglass adhesive tape/fabrics for bag sealing:Introduction:Teflon ... and painting, costume, chemical, glass manufacture, medical, electronic, insulation, building (basic cloth of topping frame), sharpener slice, etc ... patch, membrane, belt of heat enveloping patch;3. High insulation of electric: insulating belt of electric, septa, cushion, ...