High Impact Polystyrene, also known as "HIPS" plastic sheet is a low cost, tough plastic material that can be easily thermoformed and fabricated. It is commonly used for indoor applications such as signs, models, boxes, toys, etc. High impact polystyrene (HIPS) provides impact resistant solutions for a variety of applications, including printed graphics, refrigerator interiors, and bathware. Spartech's portfolio offers standard and custom products designed to meet the balance of aesthetics and performance characteristics required. Alibaba.com offers 1,308 clear polystyrene sheet products. About 88% of these are plastic sheets, 1% are sandwich panels. A wide variety of clear polystyrene sheet options are available to you, such as acrylic, pvc, and pp. There are 1,298 clear polystyrene sheet suppliers, mainly located in Asia. Buy High Impact Polystyrene Sheet online at Curbell Plastics. Large or small orders, cut to size. Stocked inventory. ISO certified plastic supplier, US locations.