Polycarbonate plastics are also resistant to UV rays, making them suitable as sheet materials for exterior applications. Vandalism resistance: Polycarbonate is virtually unbreakable and vandal-proof, making it the ideal choice of material for safety glazing.Polycarbonate sheets are clear, impact-resistant sheets made from thermoplastic polymers that incorporate carbonate groups in their chemical structure. These polymers consist of plastic material, and you can use heat to alter their form.