... chemical resistance, wide operatingtemperature ranging from -400°F to +500°F (-200°C to +260°C), excellentair permeability, vapor ... chemicals, pH value range 0-14 3) Wide operating temperature: -400°F ~ +500°F (-200°C ~ +260°C)4) Aging deterioration ... 3) Low dielectric constant and insulated performance 4) Heatproof, temperature and chemical resistance material 5) Biotech, sensor, and optical ...