Polished Glass Beads are made of soda lime glass, which is more durable and has a higher density than conventional filtration media, which consists of natural sand and gravel. Quartz sand has a density of 1.2 kg/l (75 lb/ft3) while Glass Beads ranges from 1.46 to 1.53 kg/l (91 to 96 lb/ft3) depending on the size of the Glass Beads.
Glass Beads are packed in standard 20 kg (44 lb) bags or in big bags, 1,000 kg (2,205 lb). Each bag is labeled with article, diameter, lot # and quantity. They are sensitive to high temperature deviations and must be stored in a cool dry area and kept in its original packaging until use.
Glass Beads are delivered from the factory in a pure and clean condition, so no special preparation or conditioning is necessary before use. In contrast, dust and debris can be found in sand and gravel, which might contaminate the system, and must therefore be thoroughly conditioned prior to use.
