Polycarbonate windows are an effective way to lower the vehicle weight while increasing safety for the driver and passengers. Polycarbonate windows are more than 200 times stronger than glass, are lightweight, have low thermal conductivity and can be expected to save energy costs. However, they can be easily scratched and damaged by ultraviolet rays and chemicals. So, Renias created RENCRAFT® to be a material that can solve all these problems. It has been used in railway windows in Japan for more than 15 years.