Protecta FR Coating, an ablative sealant coating applied by sprayer directly on to mineral fibres to enhance, seal and protect from fire by resisting flame spread, fire penetration and passage of hot gasses.

Mineral fibres coated with Protecta FR Coating are designed to prevent the spread of fire and smoke through openings in fire rated walls and floors, also where openings are formed to allow the installation of multiple building services. The system will also maintain the acoustic design performance. Classified for all types of constructions with or without building service penetrations, it is suitable for most surfaces, including concrete, bricks, masonry, steel, wood, gypsum, glass, plastics and most non-porous surfaces.

Based on a durable polymer system with inert fillers, non-halogenated fire retardants and a preservative to resist microbial attack, FR Coating significantly reduces the permeability of mineral fibre cores preventing gasses passing through it, reducing the temperature rise on the unexposed side and reducing heat conduction through the building services.

The coating dries to give a sound, flexible white surface finish. During installation of mineral fibres, the cured sealant coating reduces delamination and increases surface stability for adhesive and fixing sealant application.

Updated for 2022: Linear Gaps

• Approvals for use in floor perimeter gaps (i.e. non-vented gaps against facades)
• Additional approvals for rigid walls, both horizontal and vertical linear gaps
• Additional approvals for linear gaps in floors
• Approvals for linear gaps against both aluminium and steel surfaces
• Improved fire classifications and added air and smoke permeability

Features & Benefits

• Fire-resistant ablative sealant coating for mineral fibres
• Simple and very quick to install - sprays directly onto mineral fibres
• Suitable for most surfaces, including concrete, bricks, masonry, steel, wood, gypsum, glass, plastics and most non-porous surfaces
• The coating applied on mineral fibres is classified for all types of constructions with or without building service penetrations
• Easy to retrofit additional building services after installation
• Permanently flexible - will accommodate movements during fire and smaller movements in the construction it has been fitted within
• May be used in unlimited lengths in walls with heights up to 1200 mm and in floors with widths up to 120 mm
• May be installed in gypsum walls without framing around the opening
• Halogen free with added fungicides
• Once fully cured, the coated board resists water and frost
• The fire performance specification of the coating has been derived when the seal has been let to cure for a month
• Precautions are required to be taken to prevent a person stepping onto a blank horizontal penetration seal
• On site, the coating must be used together with Protecta FR Acrylic when sealing around building services
• The coating is not intended for application on bituminous substrates or substrates that can extrude certain oils and plasticizers or solvents
• The coating is not recommended for use in submerged joints or areas exposed to high abrasion, and should not come into contact with food or medical applications

Ordering References

Pipe wraps comes in two different types; ready made for most common diameters and in 25 metre rolls for all diameters.

Technical Data

Application Instructions

Installation

1. Before installing the stonewool core, please ensure that the surface of all surrounding constructions is free from all loose contaminants, dust and grease. The stonewool should be dry and sound, and any large loose pieces should be brushed off before spraying.
2. Protecta FR Coating is water based, so in cases where corrosion protection is a problem, some metals may require a barrier between the seal and the surface prior to this installation.
3. Select the type of stonewool core and friction fit into the seal according to the fire resistance table further below. To secure high density stonewool boards, please seal between the stonewool and the surface of all surrounding constructions on both sides with Protecta® FR Acrylic which will act as an adhesive.
4. When fitting stonewool boards into gypsum walls the side of the boards should be flush with the surface of the gypsum on both sides.
5. When fitting double layer stonewool boards in masonry or concrete constructions, the boards should be flush with the surface of the construction on both sides to maximize the fire resistance. If this is not possible, there should be an air gap of at least 30mm between the boards.
6. When fitting single layer stonewool in masonry or concrete constructions, it can be positioned to either side of the construction or anywhere in between.
7. When installing stonewool in hollow floor slabs, fire seals should be installed from the soffit side of the floor assuming there is sufficient thickness of concrete below the void. Where this is not the case, tubular voids should be filled with stone wool normally the same thickness as the depth of the floor slab.
8. Spray apply Protecta FR Coating to the stonewool according to the fire resistance table on page 1. Spraying pressures will depend on the type of pump and nozzle used approximately 1700 to 2300 psi using a 25 to 35 thou’ tip. Apply the coating in smooth strokes and with the minimum of overspray to achieve an even film thickness and consistent drying across the stonewool.
9. The required wet film thickness (WFT) is usually achieved when the surface is to a satisfactory proper white finish when dry.
10. Overspray can increase drying times. Drying times will be dependent on film thickness, ambient temperature and humidity and may be reduced by using drying ovens and/or fans.
11. Protecta FR Coating can be over-painted with most emulsion or alkyd (gloss) paints.

Supporting Constructions

Flexible walls must have a minimum thickness of 100mm and comprise steel studs or timber studs*** lined on both faces with minimum 2 layers of 12.5mm thick boards. Rigid walls must have a minimum thickness of 150mm and comprise concrete, aerated concrete or masonry, with a minimum density of 650 kg/m³. Rigid floors must have a minimum thickness of 150mm and comprise aerated concrete or concrete with a minimum density of 650 kg/m³.

*** Timber studs: no part of the penetration seal may be closer than 100mm to a stud, and minimum 100mm of insulation of class A1 or A2 according to EN 13501-1 must be provided within the cavity between the penetration seal and the stud.

Sound Insulation

Protecta® FR Coating has been tested at BM Trada (UKAS accredited); according to EN ISO 10140-2:2010.

Resistance to Fire – Blank Seals

NB. For penetration seals, please see the Installation Instructions for Protecta FR Board.

Emission Data (indoor air quality)

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions . We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.