Description
Fine surface cracking on a GRP, felt or metal roof doesn't always need a full laminate repair — sometimes what stops the leak is a fibre-reinforced coating that bridges the crack and seals it in one application, straight from the tin. This crack repair kit is built around exactly that: a thick, fibre-reinforced roof repair paint that bridges cracks up to 10mm wide, applied directly by brush or roller with no mixing or catalysing.
It's the fast option when the damage is surface crazing or hairline cracking rather than a structural split — no cutting matting to size, no catalysing resin, just clean the surface and coat. For splits, punctures or delaminated areas where the glass fibre reinforcement itself has failed, our GRP Resin & Matting Repair Kit is the right tool instead.
Key benefits
- Bridges cracks up to 10mm wide in one coat, no mixing or catalysing
- Applies directly from the tin by brush or roller
- Fibre-reinforced formulation for genuine crack-bridging strength, not just a thin paint
- Two sizes covering 10m² or 20m²
- Kit includes brush, roller and disposable gloves
Where it's used
Surface crazing and hairline cracks on GRP, felt and metal flat roofs — a fast maintenance fix rather than a structural repair. For splits, punctures or areas needing a rebuilt laminate, use our resin-and-matting repair kit instead; for a full new-lay roof, see our GRP roofing kit range.
Specification
| Size | Coverage | Application rate | Colour | Tools included |
|---|---|---|---|---|
| 10m² | Up to 10m² | 1-2kg/m² depending on surface | Grey | Yes |
| 20m² | Up to 20m² | 1-2kg/m² depending on surface | Grey | Yes |
Ordering & installation guidance
Clean and dry the roof surface before application — loose debris, moss or standing water will affect adhesion. Apply by brush or roller directly over the crack and surrounding area, working slightly beyond the damage to key the coating into sound material. For a genuine structural laminate repair, pair with our GRP Resin & Matting Repair Kit.
FAQ
Will this fix a split or puncture?
It's designed for fine surface cracking and crazing, bridging gaps up to 10mm. For a genuine split or puncture where the laminate itself has failed, use our resin-and-matting repair kit for a structural fix.
Does it need mixing or a catalyst?
No — it applies directly from the tin by brush or roller, no mixing or catalysing required.
What surfaces does it work on?
GRP, felt and metal flat roof surfaces.
How much do I need?
Coverage is roughly 1-2kg per m² depending on surface condition — choose the 10m² or 20m² size to match your repair area.
How is it delivered?
Dispatched from UK stock — check the product page at checkout for the current delivery estimate to your postcode.
Payment & Security
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