Ronseal Thompson's Emergency Roof Repair Mastic, 750ml, Black
Ronseal Thompson's Emergency Roof Repair Mastic (750ml) instantly seals leaks on any roof surface, even underwater.
The Ronseal Thompson's Emergency Roof Repair Mastic is a high-performance, trowel-applied mastic developed using technology originally designed for North Sea oil rigs. This innovative product can adhere to virtually any roofing material—even underwater—making it an ideal solution for emergency repairs.
Featuring added fibres and a high solids content, this mastic is specifically formulated for filling, plugging, and repairing cracks and splits, targeting leaks directly at their source. It provides an all-weather solution with its hydrophobic formula, which actively repels and displaces water during and after application. This ensures an instant watertight seal without requiring curing time to deliver full weatherproofing protection.
Applications
- Flashings
- Gutters
- Roof lights
- Valleys
Specifications
- Coverage: 0.17m² per litre
- Size: 750ml
- Colour: Black
The Ronseal Thompson's Emergency Roof Repair Mastic is a reliable, durable solution for quick and effective roof repairs in any conditions.
- +3
- For repairing flashings
- For sealing gutters
- For fixing roof lights
- For mending valleys
- Material: High-performance mastic with added fibres
- Application: Trowel-applied
- Adhesion: Bonds to virtually any roofing material, including underwater
- Weather Resistance: Hydrophobic formula repels water instantly
- Coverage: 0.17m² per litre
- Size: 750ml
- Colour: Black
- Weight: 1000g
Hazard information
H319
Causes serious eye irritation.
H315
Causes skin irritation.
H226
Flammable liquid and vapour.
H336
May cause drowsiness or dizziness.
H411
Toxic to aquatic life with long lasting effects.
H372
Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
Documents
Always follow local regulations and product guidance. Use appropriate PPE.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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