IdealPhotonics' high-reflectivity polytetrafluoroethylene (PTFE) sheet is an inert material that utilizes a microporous structure to achieve ultra-diffuse reflection. It efficiently reflects ultraviolet to near-infrared light (reflectivity >98%) through physical scattering rather than absorption, while also possessing corrosion resistance and anti-aging properties.The microporous structure achieves ultra-efficient diffuse reflection (>98%) and broad-spectrum compatibility, maintaining stable reflectivity in the ultraviolet to near-infrared band. It also boasts the triple advantages of chemical corrosion resistance, high-temperature resistance, and zero polarization sensitivity.