At Apex Fibreglass Roofing Supplies, we offer a high-quality range of GRP topcoats designed to provide long-lasting protection and an aesthetic finish for fibreglass roofing systems. Our topcoats are durable, UV-resistant, waterproof, and easy to apply, ensuring a professional-grade finish for both commercial and residential projects.

Don't Take Our Word For it! Here's What Our Customers Think

Worcester

Very good service, e-mails answered, good product details and instructions. Good value prices on all the products and delivered very quickly with a friendly and helpful driver. Would recommend and use again.

Martin P

Ashbourne

Excellent company to do business with - highly recommended. Direct line to really helpful advice; not condescending or patronising if you are a DIY'r or a trade new to this type of construction.

Matt T

Northumberland

Very satisfied with product and service. Recently bought a roof fibreglass kit from them and very happy with everything. I have already recommended to a couple of my friends.

David B

Worcester

Very good service, e-mails answered, good product details and instructions. Good value prices on all the products and delivered very quickly with a friendly and helpful driver. Would recommend and use again.

Martin P

Ashbourne

Excellent company to do business with - highly recommended. Direct line to really helpful advice; not condescending or patronising if you are a DIY'r or a trade new to this type of construction.

Matt T

Northumberland

Very satisfied with product and service. Recently bought a roof fibreglass kit from them and very happy with everything. I have already recommended to a couple of my friends.

David B

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Frequently Asked Questions

A GRP (Glass Reinforced Plastic) roofing topcoat is the final protective layer applied over fibreglass roofing systems. It enhances durability, waterproofing, and UV resistance, while providing a smooth, long-lasting finish.

We currently offer:

  • GRP Roofing Topcoat (Dark Grey/Mid Grey) – A high-quality, durable topcoat designed for fibreglass flat roofing applications.
  • Cure It Graphite Grey Roofing Topcoat – A weatherproof, seamless topcoat specifically for Cure It GRP roofing systems, offering long-lasting performance in Graphite Grey.

No, the Cure It Graphite Grey Roofing Topcoat does not include a catalyst. If you need a Cure It hardener, you will need to purchase it separately.

This topcoat is formulated for Cure It GRP roofing systems. While it may adhere to other GRP surfaces, for the best results, it is recommended to use it within the Cure It system.

Curing time varies depending on temperature and humidity, but most GRP topcoats take around 4-6 hours to cure at 15-20°C.

No, GRP topcoats should be applied with a brush or roller. They are not designed for spray application.

A properly applied GRP topcoat can last over 20 years with minimal maintenance. If you notice fading, surface wear, or damage, consider reapplying a fresh layer.

Currently, we do not stock fire-retardant GRP topcoats, but we do offer high-quality, weather-resistant topcoats that ensure long-term protection.

Yes, you need to add a Cure It catalyst before application. Make sure you purchase the correct catalyst separately to ensure proper curing and performance.