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GRP Roofing Topcoat 10kg

Original price was: £71.38.Current price is: £66.66. Excl Vat

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GRP Roofing Topcoat 10kg

GRP Roofing Topcoat - 10kg


This high-quality roofing topcoat in a striking grey shade is specifically designed for use in conjunction with our GRP fibreglass matting and resin system. It offers superior waterproofing protection for both flat and sloping roofs, ensuring your home is safeguarded from the elements.

Key Features:

  • Exceptional Water Resistance: This topcoat provides a durable, impenetrable barrier against water penetration, keeping your roof dry and preventing moisture-related issues.

  • Durability and Weather Resistance: Formulated to withstand the harsh conditions of the outdoors, including extreme temperatures, UV rays, and moisture, this topcoat will safeguard your roof for years to come.

  • Smooth and Uniform Finish: The topcoat features excellent leveling properties, ensuring a smooth and even application that enhances the appearance of your roof.

  • Sag Resistance: Designed to resist sagging on inclined surfaces, this topcoat maintains its integrity, even on slopes.

  • Tack-Free and Watertight: Upon curing, this topcoat becomes tack-free and watertight, creating a long-lasting protective barrier.

  • Maintenance-Free: The topcoat is formulated to require minimal maintenance, keeping your roof looking its best for years to come.


For optimal results, apply the topcoat to a dry, dust-free fibreglass surface that has been sanded with 40-grade sandpaper and wiped clean with acetone. Use a short pile roller for the main roof areas, and a brush for edges and corners. The recommended application rate is 0.6 kg per m┬▓. For two coats, allow each coat to dry completely before applying the next.


The coverage of this topcoat depends on the thickness of the application. A wet film thickness of 500 to 600 microns is ideal for achieving the desired characteristics in the finished structure. With 0.6 kg per m┬▓ coverage, this 10 kg container can cover an area of 16.6 m┬▓.

Safety and Precautions:

Always wear gloves and eye protection when handling this product to prevent skin contact and eye irritation. Apply in a well-ventilated area. Keep out of reach of children and pets.

ResiRoof Catalyst:

This topcoat requires the addition of ResiRoof Catalyst for proper curing. The catalyst should be added at a rate of 2% by volume. For example, you would add 20 ml of catalyst per kg of topcoat.

Additional Information:

  • This GRP Roofing Topcoat is available in 5 kg, 10 kg, and 20 kg containers.

  • Store the topcoat in a cool, dry place.

  • The shelf life of the product is 12 months.

Unveiling the Power of Roof Paint: Preserving Your Roof's Integrity

Your roof, the guardian against the elements, bears the brunt of Mother Nature's wrath. Over time, harsh weather conditions, UV rays, and moisture can take a toll on its protective barrier, compromising its integrity and leading to leaks and moisture-related issues. This is where roof paint, a versatile and essential tool, steps in to safeguard your roof's longevity and functionality.

The Enduring Appeal of Grey Roofing Topcoat

Amongst the diverse range of roof paints, grey roofing topcoat stands out as a timeless and elegant choice, seamlessly blending into the architectural landscape while offering exceptional protection. Its understated elegance complements a wide variety of roofing styles, from traditional tiled roofs to modern flat roofs.

Waterproofing Roofing Paint: Shielding Your Home from Moisture Intrusion

Waterproofing roofing paint acts as a formidable barrier against moisture, preventing water penetration and safeguarding your home from the detrimental effects of dampness. Its durable formula forms an impenetrable layer that shields your roof from the relentless onslaught of rain, snow, and condensation.

GRP Roofing Matting: A Foundation for Durability

GRP roofing matting provides a solid foundation for your roofing system, enhancing its overall strength and resilience. Its lightweight yet robust construction ensures your roof can withstand the pressures of heavy snowfall, strong winds, and other harsh weather conditions.

GRP Resin: The Ultimate Sealant for Waterproofing

GRP resin, a versatile compound, plays a crucial role in waterproofing your roof, creating a seamless, impenetrable barrier. Its adhesive properties ensure a strong bond between the roofing matting and the topcoat, further fortifying your roof against water intrusion.

Fiberglass Roofing: A Seamless Integration with Aesthetics

Fiberglass roofing offers a blend of performance and aesthetics, seamlessly integrating into the architectural design of your home. Its lightweight and durable nature makes it an ideal choice for both flat and sloping roofs, providing exceptional protection without compromising elegance.

Roof Maintenance: A Commitment to Long-Term Durability

Regular roof maintenance is essential to ensure your roof remains in top condition and continues to safeguard your home for years to come. Regular inspections, cleaning, and occasional repairs can prevent minor issues from escalating into major problems, saving you time, money, and potential damage to your property.

By investing in high-quality roof paint, such as grey roofing topcoat, and practicing effective maintenance habits, you can transform your roof into a fortress against the elements, safeguarding your home from moisture damage, extending its lifespan, and enhancing its aesthetic appeal.

Additional information

Weight 10 kg