THE ENVIRONMENTALLY FRIENDLY, MINERAL EXTINGUISHING AGENT EXTOVER® – FIRE EXTINGUISHER Extover® is a new, environmentally friendly extinguishing agent which can be used for extinguishing purposes and preventive fire protection. The small, lightweight spheres consist of foamed post-consumer recycled glass with tiny pores inside which form a closed cell structure. The granules are 100 % mineral and therefore non-combustible. It does not cause firefighting-related water damage and it is reusable. The granules were tested by the Material Testing Institute of Dresden (MPA). Even problematic fire loads such as lithium battery fires or metal fires can be easily controlled and extinguished with Extover®.