Intumescent Fire-Stop Block
Rated 3.5/5 based on 11 customer reviews

Intumescent Fire-Stop Block

Available: In Stock

    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.

    – 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

    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.

    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








    All of our 'in stock' product orders will be shipped same day, as long as the order has been processed before 3pm - this is simply to be in a position to catch the courier pickups.

    Some of couriers are explicit in their non-liquid deliveries so if you have ordered a mixture of ambient and liquid products your order has to be split across two couriers. These are lead by courier company policies, however the courier selection was done of price and so you can be safe in the knowledge that you will be getting the most competitive delivery prices around. 

    We deliver across the Island of Ireland and aim for 48/72hrs deliveries on all our orders. If you order a product that is 'out of stock' we will get them shipped by our supplier, Envirograf UK over night for our next days deliveries.