Cavity Barriers

FSi Flexi Coat Flexible Ablative Coating is a highly advanced flexible penetration and aperture sealing system.

Flexi Coat is a highly advanced flexible penetration and aperture sealing system. The Flexi-Coat is supplied in the form of both completed pre-coated Flexi-Coat Fingers and as a coating to be applied to stone/mineral wool backing material. Flexi-Coat has also been tested in accordance with EN1364-4 and is third party certified.

Product Sizes

Flexi Coat 10kg Pail – White

Flexi Coat Finger - Single Coated - 150 x 100 x 1000mm (5 per box)

Flexi Coat Finger - Double Coated 150 x 100 x 1000mm (5 per box)

Intended areas of use

• To reinstate fire resistance through walls and floors
• Movement seals in linear joints and penetration seals
• Multi-service penetrations
• Ideal for slab edge and head of wall applications
• Fire stop for internal apertures
• Curtain wall and perimeter facades

Key product advantages

• Causes no known effects to plastic, cables or metal
• Highly flexible and water resistant
• Halogen free, resists fungi and vermin
• Dry fit system depending on application
• Can be brush, trowel or spray applied
• Prevention of air leakage
• Provides cold smoke seal
• Excellent acoustic performance

Testing and Approvals

CE marked, UL-EU & Certifire approval

EN 1366-3, EN 1366-4, EN 1364-4 Fire resistance

EN 13501-1 Reaction to fire

EN 13501-2 Fire resistance

EN 1026 Air Permeability

EN 1027 Water Permeability

EN 10140-2 Airborne sound

LEED VOC

London Underground Approval

Product Specification

Colour White (others on request)

Cure Rate 0.5mm per day at 50% relative humidity @ 23°C

Tack Free 6hrs at 23°C, 50% RH

Coating Thickness 2.5mm nominal, wet coating thickness

Coverage 2.8kg/m², 2.24L/m²

Classification EN 13501-2, EN 13501-1

Product Size 10Kg, 20Kg, 1200 x 150 x 100mm fingers

Movement +/- 25%

Shelf Life 18 months for wet product

Product Data Sheet Links

Product Data Sheet

Safety Data Sheet - GB
Safety Data Sheet - EU

Declaration of Performance (DoP) DoP018-LGS

Declaration of Performance (DoP) DoP018-PS
Declaration of Performance (DoP) DoP018-LGS-UK

The above information is based on current test data, health and safety information and application instructions supplied by our suppliers and manufacturers of the products. It is supplied for guidance and to the best of our knowledge is true and accurate. Customers should satisfy themselves to the suitability of the products in its intended use and no guarantee is given or implied as the conditions of actual use are beyond our control. If in doubt the customer should consult the designer of the project or the local building control. 

Fire Stopping Shop, disclaim any liability for loss, damage or other expense which may arise from the use of this information, data or products refereed to and reserve the right to amend or change any details without notice. This statement does not affect your statuary rights.