Fire protection cable sealing cushion S90 H=18mm 4 pieces. Fire protection cushion for the production of cable sealings of fire resistance class S90 according to DIN 4102, used to close openings in internal walls and ceilings (min. F90, according to DIN 4102-2) through which cables and lines are routed and prevents the transmission of fire and smoke through these openings for a fire resistance period of 90 minutes. Approved by the building authorities, approval no. Z-19.15-2162. Note: Can be combined with other cushion dimensions and with fire protection mortar.