Find answers to the most common questions about window tinting, XPEL ceramic tint, paint protection film (PPF), California tint laws , and more. Window Tinting Basics What is ceramic window tint? Ceramic window tint uses nano-ceramic particles embedded in the film to block infrared heat and UV rays without using metals or dyes. Unlike metallic tints, ceramic tint won't interfere with cell phone, GPS, or Bluetooth signals. Premium ceramic films like XPEL Prime XR Plus can rej