High Impact Polystyrene(HIPS) Granules Grade: Recycled Color: White Specification: Injection grade, virgin materials, heat resistance, flame retardant and high impact. Product property: High impact polystyrene, or HIPS, is a versatile plastic resin used in the manufacture of numerous products. Easy to fabricate, thisresilient material costs little to produce and offers applications in many industries. Its physical properties permit flexible machining and surface applications such as paints and adhesives.