Polynt Composites USA Inc. provides FireBlock™ gel coat and laminating resin for interior parts and wheel wells in these city buses. Photo Credit: Carlson Engineered Composites, Inc.

Polynt Composites USA Inc. introduced its own version of a halogen-free, unsaturated polyester resin in 2011, winning a JEC Innovation award for resin and gel coat meeting the highest fire railway standard. FireBlock™ uses intumescence to prevent a fire from spreading, according to Steve Voeks, research and development director at the company.

Bombardier Transportation included FireBlock in parts manufactured for the new monorail system in São Paulo. Carlson Engineered Composites Inc. uses FireBlock gel coat and laminating resin in interior parts and wheel wells for New Flyer city buses. These city buses are in full production for use across North America. At Stanford University, custom fabrication firm Kreysler & Associates chose FireBlock for the interior acoustic surfaces of the Bing Concert Hall, citing its good acoustic qualities and easy fabrication qualities. Kreysler also used FireBlock in the San Francisco Museum of Modern Art, creating 700 individual FRP cladding panels up to 1.5 meters wide and 9 meters long for the 10-story building. This was the first time a composite panel passed the rigorous fire-testing that allows a material to be used above the fourth story.