Sellado de paso de tubería combustible, con banda intumescente

Sealant for PVC pipe passage, 50 mm nominal exterior diameter, and 2.2-3.6 mm thickness, in 15 cm thick wall, for passive fire protection and to ensure EI 120 fire resistance, consisting of a layer of intumescent band, 45x4.5 mm, on both sides and acrylic sealant with ignifugous properties, white color as filling material.