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GRP
GRP stands for ‘Glass Reinforced Plastic’, a material made from Polyester Resin reinforced by a Chopped Strand Mat to create a durable, long-lasting membrane. FIX-R GRP was developed alongside trusted installers and manufactured to the highest standards, using only virgin materials in its production.
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Typical Applications
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Extensions
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Garages
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Dormer Roofs
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Balconies (with anti slip)
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New build or refurbishment
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Advantages
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Cold-applied (eliminates open flame risks)
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Quick and easy to apply
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Will mould to any shape
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Creates an attractive, seamless finish
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Remains watertight and low maintenance for many years
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Fire-retardant topcoat available
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20 and 25-year warranty options
![](https://www.sigroofing.co.uk/wp-content/uploads/2020/11/GRP-Cluster-Image-318x450.jpg)
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Limitations
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GRP needs laying on a new dry deck in temperatures not less than 7.5°C (cold weather resin and catalyst available if required)
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Requires a longer weather window
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Do not apply to wet boards or PVC / nylon substrates
Product Specifications
FIX-R GRP Performance Resin
Developed to achieve a consistent curing speed when used with the standard FIX-R GRP Catalyst.
FIX-R GRP Performance Topcoat
Specially formulated to give the optimal finish to your GRP project. With excellent coverage and application viscosity, designed not to run and sag whilst applying.
FIX-R GRP Standard Catalyst
FIX-R GRP Catalyst is used to start the reactive curing process for FIX-R GRP Performance Resin & Topcoat.
FIX-R GRP Iron Silicate
Iron Silicate enables our GRP system to be used for walkways and balconies creating an anti slip surface.
FIX-R GRP Woven GRP Tape
Woven tape is used to bandage the joints in square edged OSB3, join roof edge trims & corners together and cover/fill small gaps, producing a clean and neat finish. Simply cut the required length and wet out with resin onto the surface.
FIX-R GRP Chopped Strand Matting
A randomly chopped strand matting used in the layering and continuous lamination of FIX-R GRP installations.
FIX-R GRP G4 Sealer/Primer
An easy to use sealer/primer, that seals moisture out from surfaces prior to laying FIX-R GRP. Being moisture cured it can be applied in challenging conditions, down to 0°C and in high humidity.
FIX ALL High Tack Trim Adhesive/Sealer
A high quality, single component joint sealant with high adhesive strength. In addition this product is both weatherproof and waterproof, which makes it ideal for FIX-R GRP System.
For use with FIX-R GRP Trims prior to mechanically fixing.
FIX-R GRP Acetone
Used to clean uncured resin and topcoat from brushes, rollers and other equipment. Please note this material is highly flammable. Available in 1, 5 or 25 litre packs.