Mylar® WC polyester film delivers excellent dielectric strength, tensile strength up to 28,000 psi in the machine direction, and elongation at break of 135% MD/110% TD, making it ideal for core wrap insulation in telecommunications and power transmission wire and cable applications. Available in thicknesses from 0.48 mil (12 micron) to 5 mil (125 micron), it offers superior cut-through resistance, low shrinkage (1.3% MD at 150°C), low moisture absorption, good chemical resistance, and thermal stability up to 254°C melting point. UL recognized (MIL-I631D Type G, UL 94 VTM-2), this flexible, durable film ensures reliable performance in high-temperature environments.