Polycarbonate is a high performance product for sign panel manufacturing, both for indoor and outdoor use. It provides superior protection against yellowing. With a thermal expansion coefficient of 3,75, it retains its stability to variations in temperature. The light transmission rate for a clear sheet of 1/8 in thickness is 86 %. Polycarbonate can be painted and silk-screen printed with multi-purpose (MP) type inks or Vinyl-Plus (VP).