Polycarbonate sheet plastic is clear as glass and is 250 times more resistant to breakage. It's 30 times more impact resistant than acrylic sheet plastic. It's half the weight of glass, durable, energy efficient and easy to fabricate. It's the perfect choice for glazing, skylights, store fronts, covered walkways, machine guards, displays, and personal security applications. Brand Names include Lexan, Tuffak, Makrolon.