Makrolon® WB1239 from Bayer Material Science is tailored to the requirements of the water bottled industry, designed for the manufacture of large-volume bottles that can be cleaned and refilled more than 50 times. This product offers an ideal combination of stiffness, toughness, break resistance and temperature resistance, resulting in long service life of bottles. Weighing in at around 750 g, polycarbonate bottles are around 85 percent lighter than same-sized glass bottles. The bottles are also highly transparent, making it easy to check fill levels. http://www.bayermaterialscience.com