Many transparent plastics have the advantage of high light transmission, which is important for exploiting light to the maximum. But in the course of time, transparent plastics may yellow, reducing their light transmission. Not so with PLEXIGLAS®. PLEXIGLAS® stands for guaranteed durability. Its 30-year guarantee against yellowing ensures that investments in transparent PLEXIGLAS® pay off in the long run. This is an important argument for power generation plants that are calculated to remain in operation for long periods of time.