Fire protection block, permanently elastic, largely closed-pore foam that forms an insulating layer when exposed to heat. Area of application: Smoke-tight, square cable seals in fire protection sections, particularly in rooms sensitive to dust, fibers and moisture, as well as in and on electrical installation ducts, approved for fire protection sealing of cable ducts in walls and ceilings in accordance with DIN 4102 Part 9, fire resistance class S 90. The technical specifications of the general type approval Z-19.53-2529 must be observed during planning and implementation! Fill openings and gaps with BSM 90 fire protection compound! Please observe additional regulations for use in functional maintenance! Dimensions: 200 x 120 mm Wall thickness: at least 200 mm Ceiling thickness: at least 200 mm Cable occupancy: max. 60% per shell opening