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SKU: MW/SLAB

Mineral Wool Shuttering Slab | MW

Description

MW Mineral Wool Insulation is best used as a shuttering solution in combination with QF2 Fire Protection Compound. It is designed to help fire stop cables and other non-combustible services that penetrate compartment walls and floors, and it comes in 1200 x 600 x 50mm slabs. 

It offers many benefits. The acoustic mineral wool slab is easy to cut, handle, and install. It also has excellent fire-resistant, acoustic, and moisture-resistant properties, and is built to last for the entire lifespan of the service installation.

Often called rock wool or stone wool, mineral wool has been widely used for over 60 years. It is made from volcanic rock, such as basalt, which forms when underground rock melts and cools rapidly. 

Standards & Approvals

  • Building Regulations impose limitations on all services passing through fire compartment walls and floors.
  • MW Mineral Wool Shuttering Slab together with Quelfire QF2 Fire Protection Compound has been tested in accordance with the General Principles in BS 476: Part 20: 1987 in conjunction with the additional guide lines in the latest available draft document reference EN 1366-3: 1993 produced by the European Committee for Standardisation (CEN) relating to the fire resistance testing of penetration sealing systems.
  • Tests were conducted on vertical and horizontal compartment walls and floors and indicated it provides up to 4 hour fire rating. Also tested to BSEN 1366-3: 2009.

Under fire conditions the MW Mineral Wool Shuttering Slab installed with the QF2 Fire Protection Compound maintains fire integrity where cables, and other non-combustible services penetrate fire walls or floors.

QF2 Fire Protection Compound may be used in all types of building and is compatible with most building materials. QF2 Fire Protection Compound is simply added to clean water either in a bucket or a concrete mixer, mixed and poured or trowelled into position.

The setting time for QF2 Fire Protection Compound depends on the atmospheric temperature. It may be built up further within two or three hours where large barriers are required. Do not attempt to use a mix ratio of less than 2:1 mortar to water volume.

Adding further water to the partially cured system must be avoided at all times as this will irreversibly interfere with the curing process.

For horizontal barriers it is recommended that MW Mineral Wool Shuttering Slabs are tightly fitted into the opening so that the QF2 Fire Protection Mortar may be poured on top of the slab to the required thickness. It is recommended that the mineral wool slab is not removed but remains in position as this offers an enhanced period of fire resistance.

Where the barrier is required to provide a load bearing capability consideration should be given to structural support, such as reinforcing bars. Consideration may also be given to the use of a permanent shuttering system. In all loadbearing situations mortar thickness must be at least 100mm.

Where the thickness of the seal is built up using multi layers, the structural strength of the seal may be reduced. It is therefore recommended particularly in load bearing situations that a maximum of 10% thickness is installed initially and the remaining thickness applied as a further single operation.

  • Delivery

    Next Day Delivery
    Orders placed before 2pm on weekdays will be sent the same day for delivery next working day.*

  • Stock Status

    In Stock & Ready to Go
    Except for custom-made items which will be made to order.

*Please note that custom made items can expect to have longer lead times. Next working day is typical but can depend on outside factors not controlled by Quelfire.

Product Info & Features

Product Information
Property Details
Composition MW Mineral Wool Shuttering Slab consists of a non-combustible mineral wool batt, which provides increased fire resistance when used correctly. It is easy to cut, facilitating installation around services, and is used as a fire-resistant permanent shuttering for all types of fire protection mortar.
Durability MW Mineral Wool Shuttering Slab is expected to last the lifetime of the service installation.
Features & Benefits
  • Tick An easy to install shuttering system for the fire protection compounds
  • Tick 1200 x 600 x 50mm slabs
Show Product Info & Features and Benefits
Product Information
Property Details
Composition MW Mineral Wool Shuttering Slab consists of a non-combustible mineral wool batt, which provides increased fire resistance when used correctly. It is easy to cut, facilitating installation around services, and is used as a fire-resistant permanent shuttering for all types of fire protection mortar.
Durability MW Mineral Wool Shuttering Slab is expected to last the lifetime of the service installation.
Features & Benefits
  • Tick An easy to install shuttering system for the fire protection compounds
  • Tick 1200 x 600 x 50mm slabs

Product Documentation

File
Product Data Sheet Download
Material Safety Data Sheet (COSHH) Download

Frequently Asked Questions

Is mineral wool insulation fire rated?

Mineral wool insulation is fire-resistant; it is non-combustible and can withstand temperatures above 1,000°C. This makes MW Mineral Wool Insulation the ideal choice to use with QF2 Fire Protection Compound, in line with test evidence.

What happens if mineral wool insulation gets wet?

If mineral wool insulation becomes wet, it usually retains its shape and properties after drying. However, prolonged exposure to moisture can decrease its effectiveness, so this should be avoided.

Does mineral wool insulation need to be covered?

Yes, mineral wool should typically be covered to protect it from damage, dust, and water exposure, all of which can reduce its effectiveness.