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Envirograf Fire Mortar for fire stopping in floors

Brand:
Reference:
E006FM

A dry mix to which water is added and then mixed like plaster. When set, the mortar is load bearing.

It can be drilled to allow the installation of services. 

The Fire mortar is used for fire-stopping around building services that pass through floors and can be used in conjunction with intumescent blocks and slabs to provide a durable, structurally secure construction.

Tested in accordance with BS476 Part 22 (1987).

The test report shows that there was no loss of integrity of the slab itself during the 240 minutes period and 240 minutes insulation.

Envirograf Product 6

£35.70 (tax excl.)
£35.70 (excl VAT)
£42.84 (incl VAT)
Colour
  • Grey
  • Pink
Size
Description

About Fire Mortar

This product is a dry mix to which water is added and then mixed like to the consistency of sand and fire cement.

When set, the mortar is load-bearing and can be strong enough to take the weight of pedestrian and mechanical traffic. It can be drilled and is easily cut to allow the installation of services.

Can be used on fire rated timber, plasterboard, concrete walls and brick, block or concrete floors

Acts as permanent shuttering around services, filling apertures in walls and floors

The following fire ratings can be achieved with the corresponding thickness:

  • Up to 6-hour protection: 100mm
  • 4-hour protection: 25mm
  • 3-hour protection: 12mm
  • 2-hour protection: 6mm
  • 1-hour protection: 3mm

IMPORTANT – This product is for use with intumescent slabs (Envirograf Products 4 or 5) and must not be used by itself.

Application 

To the 25 kg bag, add 4 ¼ to 4 ¾ litres of water, and mix like plaster.

For floors, pour into the floor opening.

For walls, apply over a Rockwool Slab with a trowel or float.

A 25 kg bag will fill approx. 8600 cm³ or 2 bags will fill 0.83 m² to depth of 25 mm.

Application into floor

For openings 600 mm x 900 mm, no wire mesh is required. Just fit Rockwool slab, fit Envirograf Protection around any services and fill over the Rockwool to the required depth, with the FM Fire Mortar.

For larger openings, fit 50 mm RW4 or RW6 Slab where large areas over 1 metre wide, use Envirograf Support battens under the Rockwool. Fit 30 mm wire mesh over the Rockwool, cutting around services and wiring to the services. Fix wire mesh all around the perimeter of the hole, bend up the wall or floor and fit with EnvirografFB/C Metal Battens to support the mesh.

Fit Fire Protection Wraps around pipes and electrical services, Intumescent Pads inside and Trunking Pillows for Cable Trays.

Use Fire Proof Sponge around ventilation trunking. Mix the Fire Mortar and pour into the opening to the required depth.

Tested in accordance with BS476 Part 22 (1987).

The test report shows that there was no loss of integrity of the slab itself during the 240 minutes period and 240 minutes insulation.

For non-load-bearing areas, 25mm thickness will give 240 minutes integrity.

For load-bearing areas, 50mm thickness for light loading, 60mm thickness for medium loading and 70mm thickness or more for heavy loading.

Product Features
E006FM
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