Ronseal
Ronseal Thompson's Emergency Roof Repair Mastic 750ml 36082
Model 36082
Best price
Lowest we’ve seenWhere to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked 23 hours ago | £16.54 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 checked within the hour | £18.95£22.96 | In stock | Visit Tooled Up (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £19.68 | In stock | Visit Blueperry Tool & Builders Merchants (UK) (opens in a new tab) |
Prices exclude delivery. We may earn a commission if you buy through these links, which never affects the ranking above — it is always cheapest first.
Price history
Full price historyThis is the lowest price we have recorded. If you were waiting for a drop, this is it.
About this product
Thompson's Emergency Roof Repair Mastic is a trowel-applied, black sealant for urgent roof repairs and waterproofing. Developed from technology used on North Sea oil rigs, it adheres to virtually any roofing material, even underwater, making it useful for tradespeople dealing with leaks in poor weather.
Its hydrophobic formula repels and displaces water during and after application, forming a watertight seal instantly with no curing time needed. Added fibres and a high solids content help it fill, plug and repair cracks and splits, targeting leaks at their source.
Suitable for flashings, gutters, roof lights and valleys. Coverage is approximately 0.17m² per litre, supplied in a 750ml size.
| Coverage | 0.17m² per litre |
|---|---|
| Size | 750ml |
| Colour | Black |
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