---
product_id: 50240981
title: "Ronseal TERRM750 Thompsons Emergency Roof Repair Mastic 750 ml"
brand: "ronseal"
price: "€ 54.91"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/50240981-ronseal-terrm750-thompsons-emergency-roof-repair-mastic-750-ml
store_origin: PT
region: Portugal
---

# Adhesive underwater High-strength filling Easy application Ronseal TERRM750 Thompsons Emergency Roof Repair Mastic 750 ml

**Brand:** ronseal
**Price:** € 54.91
**Availability:** ✅ In Stock

## Summary

> 🏠 Seal the Deal with Confidence!

## Quick Answers

- **What is this?** Ronseal TERRM750 Thompsons Emergency Roof Repair Mastic 750 ml by ronseal
- **How much does it cost?** € 54.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/50240981-ronseal-terrm750-thompsons-emergency-roof-repair-mastic-750-ml)

## Best For

- ronseal enthusiasts

## Why This Product

- Trusted ronseal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Durability:** High-strength filling ensures long-lasting repairs.
- • **Compact Convenience:** Lightweight and easy to store, perfect for any emergency kit.
- • **Underwater Adhesion:** Seal leaks even in wet conditions—no weather can stop you!
- • **Ergonomic Excellence:** Crafted for comfort, making repairs a breeze.
- • **Seamless Application:** Effortlessly repair your roof with a user-friendly design.

## Overview

The RonsealTERRM750 Thompsons Emergency Roof Repair Mastic is a 750ml black sealant designed for quick and effective roof repairs. With its ergonomic design and high-strength filling ability, this product allows for easy application, even in challenging conditions like underwater. Weighing just 1.01 kg, it's a must-have for any homeowner looking to tackle emergencies with ease.

## Description

Ronseal TERRM750 Thompsons Emergency Roof Repair Mastic 750 ml

## Features

- Easy application
- Ergonomic design
- Easy to use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Ronseal |
| Part Number | RSLTERRM750 |
| Product Dimensions | 12 x 9.9 x 10 cm; 1.01 kg |
| Item model number | RSLTERRM750 |
| Size | 750ml |
| Colour | Black |
| Material | Mastic |
| Item Package Quantity | 1 |
| Special Features | Adhesive Underwater, High-Strength Filling Ability |
| Usage | roof |
| Included Components | 1 piece |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 1.01 kg |

## Product Details

- **Brand:** Ronseal
- **Specific uses for product:** roof
- **Material:** Mastic
- **Item form:** Liquid
- **Special feature:** Adhesive Underwater, High-Strength Filling Ability

## Images

![Ronseal TERRM750 Thompsons Emergency Roof Repair Mastic 750 ml - Image 1](https://m.media-amazon.com/images/I/716kyPHScAL.jpg)

## Questions & Answers

**Q: what is the coverage of a 750ml tin**
A: On the tin it says 0.13 sq metres assuming the depth of application is 6mm.

**Q: We’ve just applied it now (9pm). Forecast is dry overnight and hot tomorrow. When can I expect it to be completely dry?**
A: It should be dry within 24 hours  but  this weather probably 12 it will react with hot  sun like road tar and melt into some of holes / cracks so may be worth leaving a while and reapplying on large cracks to make sure it’s totally weather proof for wet weather that’s what I have done

**Q: Can i use a brush**
A: No you cannot use brush. You have to use trowel. The stuff is not soft to use a brush.

**Q: My garage felt only has slight cracks. I wanted to repair it before it gets worse. Will this do the job??**
A: Yes, this will do the job very effectively. It is a thick-ish rubberised paste, which goes on well when applied with a putty knife or similar. It will easily fill and seal gaps up to 5 or 6mm wide with no problems. I would recommend it.

## Frequently Bought Together

- Ronseal TERRM750 Thompsons Emergency Roof Repair Mastic 750 ml, Black
- fowong Waterproof Tape, 50mm(W) x 5M(L) Butyl Tape, Waterproof Tape for Leaks and Outdoor Use, Flashing Tape for Roof Sealant, Roof Repair Tape for Repairing Roof Crack, Gutter, RV Repair

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**Shop now:** [https://www.desertcart.pt/products/50240981-ronseal-terrm750-thompsons-emergency-roof-repair-mastic-750-ml](https://www.desertcart.pt/products/50240981-ronseal-terrm750-thompsons-emergency-roof-repair-mastic-750-ml)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-16*