Winter Sale 5% off all roofing kits (added at basket) 5% OFF EPDM Kits Quality Cure IT TRIMS ONLY £9.60
Got a Question? Call Us
0800 612 7903
Shed Rubber Roof Kit - SkyGuard 2 to 5 days Delivery
Classic Bond EPDM Flat Roof Kits(Free Delivery) 2 to 5 days delivery
Epdm Dormer Roof Kits(Free Delivery) 2 to 5 days delivery
Sure Edge Kerb Trim 2.0M
Sure Edge Gutter Drip Trim 2.0m
EPDM Contact Adhesive 2 to 5 days delivery
Classic Bond Water based Deck Adhesive 2 to 5 days delivery
ClassicBond Tool Installation Kit
Couldn't load pickup availability
The Apex Roofing Topcoat is a high-quality isophthalic GRP topcoat designed to seal and protect fibreglass roofing systems. Unlike standard gelcoat, this topcoat cures fully tack-free, allowing it to be applied like paint for a smooth, durable and professional finish.
Formulated for excellent UV stability, water resistance and physical strength, this roofing topcoat provides long-lasting protection for all GRP surfaces. It is suitable for a wide range of applications including flat roof waterproofing, fibreglass repairs and GRP finishing, making it ideal for both domestic and commercial projects.
Available in Dark Grey and Mid Grey, this topcoat integrates seamlessly with GRP roofing systems and delivers a clean, consistent finish. It is not suitable for spray application and is intended for roller or brush use.
Each order is supplied with a FREE catalyst, pre-calculated to enable a 2% mix ratio, ensuring correct curing and reliable results every time.
Any RAL colour available – please call for information.
Please allow 1 to 3 working days for your order to arrive.
Returns are easy, if the items are unopened and unused then simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!
Here are 5 more great reasons to buy from us:
Returns are easy, if the items are�unopened and unused�then simply�contact us�for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!
In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.
We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.
Ordering from APEX Fibreglass Roofing Supplies is 100% safe and secureso you can rest easy. Your personal details are never shared, sold or rented to anyone either.
This topcoat is designed for all GRP (Glass Reinforced Plastic) surfaces. It provides a smooth, protective finish suitable for roofing and other fibreglass applications, ensuring UV stability, water resistance, and long-lasting performance.
No. This topcoat is not suitable for spray application. It is intended for brush or roller application only, which ensures proper consistency, coverage, and curing.
To ensure proper curing, mix the catalyst at a 2% ratio with the topcoat. For example, for 1kg of topcoat, use 20ml of catalyst. Mix thoroughly before application.
Curing times depend on temperature and environmental conditions, but generally, the topcoat will begin to cure within 20–30 minutes and be fully tack-free in a few hours. Avoid applying in cold or humid conditions for best results.
If the GRP surface is clean, dry, and well-prepared, no primer is required. For best adhesion, ensure the surface is free from wax, dust, or contaminants before applying.
