SAUERLAND BOARD consists of chipped wood and synthetic resin glue.
Standard boards have a ‘normal’ combustibility according to the Combustibility class E following EN 13501-1 (European Standard).
Tubular or Solid Extruded board can be used as cores in fire doors.
But because the core being only one component besides for example frame, skins, hardware and intumescents, it is necessary to test the complete door set.
According to the type of core - tubular or solid - different grades of fire resistance can be obtained:
|20 min||light tubular boards|
|30 min||tubular boards with 18/22 mm tubes|
|60 min||solid boards in doors > 45 mm|