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Standard Fibreglass Roofing Topcoat & Catalyst

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Quick Overview

This contractors, non fire-retardant, roofing topcoat is available in either a light or dark grey finish. Specially designed for fibreglass roofing applications, this roofing topcoat will cure to a tack free, waterproof finish that will require little maintenance! This roofing topcoat is also supplied as part of our Low-Cost Fibreglass Roofing Kits.


Non fire-retardant standard topcoat specifically formulated for GRP / fibreglass roofing builds and repairs.

Once applied, this topcoat will cure to a tack-free durable finish in a light grey colour.

This standard roofing topcoat is also supplied in our low-cost fibreglass roofing kits.

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 Gelcoat is not a finishing coat; it is painted onto moulds/plugs and remains tacky after it cures. Resin and Glass are generally applied on top of the Gelcoat. It forms the hard, smooth shiny surface of the finished article and is usually pigmented. It paints on easily but does not drain from vertical surfaces.... Read more

Published in: Gelcoat / Topcoat

If the area has an old layer of Topcoat which you wish to refresh there is no need to prime the area with a product such as G4 for example. You will, however, need to sand down the area, wipe down with Acetone and reapply a new layer of Topcoat/GRP materials if required.

Published in: Gelcoat / Topcoat