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Roofing Topcoat Dark Grey /Mid Grey/ Free Catalyst!! (All Prices inc Vat)

Roofing Topcoat Dark Grey /Mid Grey/ Free Catalyst!! (All Prices inc Vat)

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A high quality, isophthalic,  Unlike standard gel-coat, topcoat cures tack free, allowing it to be used like a paint to seal fibreglass surfaces. It has excellent physical properties, water resistance and UV light stability. This quality topcoat is suitable for a wide range of applications and for all GRP surfaces. Available in Dark Grey ,Mid Grey  Not suitable for spray application. Supplied with free catalyst.
Any Ral Colour Available Please call for information
All Topcoat will include free Catalyst  to enable a 2% mix
   

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!
   

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.

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.

Customer Reviews

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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.

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