Fibrecoat is a liquid applied high performance; high build polyurethane coating for use on most roof surfaces including asphalt, bituminous felt, concrete, single ply and metal surfaces. This forms the first coat for the Fibrecoat liquid applied roofing system.

Fibrecoat is a viscous, semi thixotropic, high solids liquid polyurethane that cures with the moisture in the air to form a seamless and durable waterproofing coating. It also contains an accelerant that reduces significantly its curing time against standard single component polyurethane.

Thoroughly mix Fibrecoat using a paddle mixer at a low rpm. Ensure the product is completely homogenous and then leave to rest to let excess air disperse before application. This can be checked by waiting until surface bubbles disappear in the drum. This will reduce the likelihood of pinhole formation in the membrane.

Fibrecoat should be applied by brush or short pile roller at a typical coverage rate of 1 kg/m on smooth roof surfaces and rising to 1.25 kg/m on rough roof surfaces. Coverage must be sufficient to fully embed and saturate the Fibreglass Reinforcement before application of the top coat.

Fibrecoat should only be applied to structurally sound areas. Areas that do not meet this requirement must be treated accordingly to leave a substrate suitable for liquid application. Dirt, dust, organics and any other loose materials must be removed by scraping or brushing with a stiff bristle brush and power washing with a biocide wash before application of the first coat and detailing.

Project detailing is to be completed prior to the application of the base coat Fibrecoat. Please refer to our support document for an overview of how to accurately dress areas of detailing. Use a short pile mohair roller to apply and embed the fibreglass matting into the specified coverage of Fibrecoat.

Ensure full coverage of the surfaces and monitor by taking wet and dry film thickness readings. The coating must maintain its thickness across all details including penetrations and abutments.

Allow the matting to fold over itself. Alternatively, use the frame of the roller to break the fibres down allowing them to mesh into themselves. Treat with product as required ensuring full saturation.

Once cured, inspect the membrane for proud or wicked fibres and any pinholes. Wicked and proud fibres should be cut back and lightly abraded to give a smooth finish. Pinholes should be treated with additional product and left to cure before application of the top coat.

Fibrecoat is UV stable but the degree of change of colour under the UV radiation is different for each colour. Dark colours (dark grey) have fewer changes.

Thoroughly mix Fibrecoat using a paddle mixer at a low rpm. Ensure the product is completely homogenous and then leave to rest to let excess air disperse before application. This can be checked by waiting until surface bubbles disappear in the drum. This will reduce the likelihood of pinhole formation in the membrane.

Apply the Fibrecoat (second layer) when the base coat has fully cured. Fibrecoat (second layer) should be applied by brush or short pile mohair roller at a typical coverage rate of 1 kg/m² dependent upon the system being installed. Ensure that the total roof area and base coat have been over coated with the top coat in accordance with the Allbase recommendations.

If the base coat has been exposed for more than 14 days, reactivate the surface using the recommended cleaning solvent (after cleaning it) and afterwards apply PU Primer as specified at 100g/m² with a clean rag or equivalent. Ensure the surface is completely clean, dust free with no sitting water before coating. For larger, flat areas, apply PU Primer with a roller at 100g/m².

Once cured, inspect the membrane for proud or wicked fibres and any pinholes. Wicked and proud fibres should be cut back and lightly abraded to give a smooth finish. Pinholes should be treated with additional product and left to cure. Allow the membrane to fully cure before reinstating or installing any plant equipment onto the roof area.

Visually inspect the wet coating checking for defects such as pinholes, discontinuity and exposed matting. Undertake corrective measures as required.

Allbase protective coat is a single component polyurethane coating with UV colour stability called Protex. It has excellent chemical and abrasion resistance and forms an extremely durable top coat for the standard Fibrecoat system. The protection coat can be tailored to system requirements with clear, pigmented or anti-slip system options.

Allbase protection coat as standard is a clear polyurethane. It must be pigmented with compatible RAL colours to be an effective barrier against UV rays. For a skid deterrent system Protex can have pigmented quartz embedded in to the coating.

Before applying the protection coating ensure the Fibrecoat (second layer) has completely cured. It must be completely clean, dust free and have no sitting water before application. If 14 days have passed between applications of Fibrecoat (second layer) and the proposed application of Protex, reactivate the surface as specified with PU Primer at 100g/m2 to activate the membrane. Mix Protex with a paddle mixer at a low rpm until completely homogenous. Leave to rest and let excess air disperse before application.

For a UV Barrier protection coat, Pigmented Protex should be applied by brush or short pile roller at a typical coverage rate of300g/m² on to the Fibrecoat membrane.

For an anti-slip pigmented protection walkway, mark out the desired walkways using appropriate tapes. Apply Protex by brush or short pile roller at a typical coverage of 200g/m². Into the wet Protex broadcast pigmented quartz 0.7- 1.2mm. While the coating is still wet, remove the tapes and then leave the coating to cure. Once fully cured sweep off any loose quartz, abrade the surface (depending the degree of anti-skid finishing required) and apply a further 2 200g/m² of Protex and leave to fully cure. A second layer of 200g/m² of Protex may be required.