Intumescent block for fire stopping gaps around pipes, cables as well as services. Fixing blocks into walls or floors creates a temporary or permanent fire stopping solution. Clad with foil and intumescent strips, the block expands in a fire, which locks in place to seal the void and furthermore prevents firespread. Each fire stop intumescent block is 1200mm long, designed with intumescent on either side. Designed as an effective fire and smoke barrier to prevent rapid firespread and smoke inhalation. Available in other standard sizes found under our references tab, or also made to order. Our fire stop blocks are also compatible with our intumescent wraps for pipe collars of varying material. It’s flexible, soft material is easily cut with a sharp blade to fit into any space where required. Ideal as a fire break under suspended computer floors, or between screen walling and concrete floors. In the event of maintaining services, our blocks can also be easily removed for access of services. Designed with self-adhesive tape to join together and fixate into spaces. Fire barriers provide an effective solution for gaps or voids within buildings that require fire protection. Browse our full range of fire barrier products. ADVANTAGES Great for fire-stopping voids in compartmentalised walls and floors- Easily installed around existing services and can be cut to shape to accommodate new ones Can be used in conjunction with intumescent wraps or collars to provide 2 hours protection or more for services passing through walls and floors Can be used between screen walling and concrete floors as a firebreak FIRE TEST PERFORMANCE Tested to BS476 Part 22 (1987), achieving 138 minutes integrity. Tested at VNE to European Standard EN1363-1 (2000) APPLICATION INSTRUCTIONS The Intumescent Blocks can be cut with a sharp knife or hacksaw blade, fitting into the opening to form a fire seal. Can be cut and pushed around services and pipes. Where plastic pipes are 75mm or over then use Envirograf Wrap or Pipe Sleeve fixing into the blocks. Where blocks are going over cable trays, leave a small gap and use Envirograf Product 29 Cable Tray Pillows. The blocks have double-sided tape around the edges so they can be adhered to each other to form a smoke seal. Where there are any open joints use Envirograf Product 63 Intumescent Cement Filler of Product 61 CS Stopper. Envirograf Intumescent Blocks can be used between screen walling and concrete floors as a firebreak. Technical Information Application Instructions COSHH Data
