Product Description: Flex Film 426 is a high performance PI bagging film designed for high temperature cycles in advanced composites fabrication. The multipurpose film is used as a Vacuum Bagging Film for processing of thermoplastic resin system but also can be used as a high temperature Release Film after application of a suitable release agent on the facing surface with the part. TECHNICAL PROPERTIES MAX Working Temperature: 426°C – 799°F APPLICATION SYSTEM Epoxy and PHENOLIC RESINS TENSILE STRENGTH ASTM D882 MD 165MPa TENSILE STRENGTH ASTM D882 TD 165MPa ELONGATION AT BREAK (ASTM D882) MD 45% ELONGATION AT BREAK (ASTM D882) TD 45% STANDARD THICKNESS 0051mm 0.002in PLANAR DENSITY – ORDER UNITY Square Meters M2 STANDARD WIDTHS 1520mm / 60in AVAILABLE FORMATS Sheet NOTES Suitable for autoclave cure process. Flex Film is packed in roll and in polyethylene bag and must be stored in a clean and humid environment with 50%-70% RH and 10°C-25°C temperature.