Description A fire resistant mineral fibre block which can be used as a temporary or permanent fire stopping method in walls or floors. Clad with foil and intumescent strips, the block expands in opposite directions in a fire, locking in place and sealing the void. 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 Application Instructions The Intumescent Blocks can be cut with a sharp knife or hacksaw blade, fitting intothe 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 Sleevefixing into the blocks. Where blocks are going over cable trays, leave a small gap anduse Envirograf Product 29 Cable Tray Pillows. The blocks have double-sided tapearound the edges so they can be adhered to each other to form a smoke seal. Wherethere are any open joints use Envirograf Product 63 Intumescent Cement Filler ofProduct 61 CS Stopper.Envirograf Intumescent Blocks can be used between screen walling and concretefloors as a firebreak. Order References / Sizes REF SIZE LENGTH PROTECTION IB1 50mm thick x 150mm wide 1200mm 1 hour IB1/A 50mm thick x 100mm wide 1200mm 1 hour IB1/B 50mm thick x 50mm wide 1200mm 1 hour IB2 100mm thick x 150mm wide 1200mm 2 hours IB2/A 100mm thick x 100mm wide 1200mm 2 hours IB2/B 100mm thick x 50mm wide 1200mm 2 hours Daat Sheets TEHCNICAL DATA TD002-11-2018.pdf APPLICATION DATA AP002-11-2018.pdf COSHH DATA HS002-11-2018.pdf
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