Cable seal for small or medium size cables

Seal for cables with insulation, of exterior diameter less than or equal to 21 mm, through an opening of 100 cm², in a 15 cm thick wall, for passive fire protection and to ensure fire resistance EI 120, with rock wool nodes, of 45 kg/m³ density as filling material, covered by both sides with a 25 mm thick layer of intumescent sealant, gray anthracite color.