How much does optical distortion matter when choosing polycarbonate for heavy equipment, commercial, or residential applications? In this demonstration, RockGlass Heavy Equipment Project Manager Robert Grant puts two polycarbonate solutions to the test, and the difference is easy to see. Inside the RockGlass warehouse, Robert demonstrates a simple visual clarity and distortion test using an eye chart placed behind multiple polycarbonate panels. The first setup uses panels that exhibit visible waves and optical distortion.

As you look through the material, the letters on the chart become warped and more difficult to read. Optical distortion can occur during the polycarbonate sheet fabrication process for a number of reasons, including uneven heating or cooling, contamination, variations in thickness, and inconsistencies in surface finish. These factors can affect the way light travels through the sheet, causing objects behind the panel to appear warped or uneven. For residential and commercial applications, this type of distortion can impact the viewing experience and overall appearance of a building. In heavy equipment applications, reduced optical clarity can contribute to operator fatigue, impaired visibility under certain conditions, and potential safety concerns.

Next, Robert compares the results with four RockGlass sheets (two 6 mm sheets and two 10 mm sheets) providing the same total thickness while incorporating double the coatings. Despite looking through multiple layers, the letters behind the RockGlass remain clear and free of visible distortion to the naked eye. RockGlass sheets are manufactured to meet meticulous optical performance requirements through an industry-leading quality control system.

The result is a high-quality optical sheet designed to minimize visible distortion, allowing light to pass through with minimal scattering and helping maintain a clear view of what lies beyond the panel. Whether you’re selecting polycarbonate for heavy equipment, commercial buildings, or residential applications, optical clarity is an important consideration. See the difference for yourself—and discover why, when clarity matters, the clear choice is RockGlass.