---
product_id: 59457754
title: "Thompsons 10 Year Roof Seal Grey 4L"
brand: "thompson's"
price: "S$264"
currency: SGD
in_stock: true
reviews_count: 8
category: "Thompson's"
url: https://www.desertcart.sg/products/59457754-thompsons-10-year-roof-seal-grey-4l
store_origin: SG
region: Singapore
---

# UV-resistant color lock Rainproof in 6 hours 10-year durability Thompsons 10 Year Roof Seal Grey 4L

**Brand:** thompson's
**Price:** S$264
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal your roof, seal your peace of mind.

## Quick Answers

- **What is this?** Thompsons 10 Year Roof Seal Grey 4L by thompson's
- **How much does it cost?** S$264 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/59457754-thompsons-10-year-roof-seal-grey-4l)

## Best For

- thompson's enthusiasts

## Why This Product

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

## Key Features

- • **Fast Rainproofing:** Ready to face the elements in just 6 hours—no downtime, no stress
- • **Superior to Bitumen:** Outperforms standard bitumen paint for a premium, long-lasting seal
- • **Effortless Application:** Roll on easily with an extension pole—perfect for DIY pros and busy managers
- • **Fade-Resistant Grey Finish:** UV-resistant formula keeps your roof looking sharp and modern
- • **Decade-Long Roof Protection:** Seals and flexes with your roof for 10 years of worry-free durability

## Overview

Thompsons 10 Year Roof Seal Grey 4L is a high-performance protective coating designed to flex with roof movement, resist UV fading, and become rainproof within 6 hours. Offering superior durability compared to standard bitumen paints, it covers 2m² per litre and provides a sleek grey finish that lasts a decade. Ideal for professionals seeking a reliable, easy-to-apply roof sealant with proven longevity.

## Description

Shop Thompsons 10 Year Roof Seal Grey 4L. Free delivery on eligible orders of £20 or more.

Review: Easy to apply and durable - At this price you can't go wrong, and it's actually good stuff!
Review: Easy to apply - Easy to apply to shed roof using a roller on an extension pole.it will be tested over winter

## Features

- Contains benzisothiazolone. May produce an allergic reaction.
- Flexes with the natural movement of the roof
- Resists the sun's UV rays, so colour won't fade
- Rainproof in 6 hours
- Outperforms standard bitumen paint

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01HR318TY |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 42,335 in DIY & Tools ( See Top 100 in DIY & Tools ) 28 in Roof Coatings & Paints |
| Colour | Grey |
| Coverage | 2m2 per Litre |
| Customer Reviews | 4.6 4.6 out of 5 stars (254) |
| Date First Available | 28 Aug. 2014 |
| Handle/lever placement | Top |
| Included Components | 1 Tin |
| Item Package Quantity | 1 |
| Item Weight | 6.7 kg |
| Item model number | 30147 |
| Manufacturer | Sherwin-Williams |
| Part Number | 30147 |
| Power Source | hand_powered |
| Product Dimensions | 18 x 18 x 19 cm; 6.7 kg |
| Shape | Round |
| Size | 4L |
| Voltage | 100 Volts |
| Wattage | 6 watts |

## Images

![Thompsons 10 Year Roof Seal Grey 4L - Image 1](https://m.media-amazon.com/images/I/711xhIQ+kBL.jpg)

## Questions & Answers

**Q: Hi Does anyone know how many m2 this would cover ?**
A: hi I had a 4 ltr tin and I gave a 3mx2m flat roof two coats and still had 1.50ltrs left. consertrated on joints ,good  product.

**Q: Is this definitely waterproof? When applying it appears to be like regular paint and washes off skin and brushes as normal with water...?**
A: Have used Thompsons  10 year Roof Seal on many occasions over the years and it is a very good  roof waterproof seal if used in accordance with their instructions.
It will not for instance last  for the guarantee period if there is any standing water or 'poncing' on the roof.
As it is water based the paint does give the impression that it is a standard type paint but when fully dry it a a good roof seal.

**Q: Do i paint this straight onto wood or do i need to fit felt first?**
A: If this is a new roof it must have felt fitted. If the felt is fitted correctly by a professional you will not need to use roof seal, as all the joints will be sealed. You will only need to use a roof seal when the roof starts to wear and show signs of ageing. This is then painted onto the felt to stop leaks.

**Q: How soon can I paint my felt cabin roof with Thompson’s after applying spear and Jackson algie spray**
A: I did not use Algiers spray
But the paint was fine no problems

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to apply and durable
*by M***. on 25 July 2025*

At this price you can't go wrong, and it's actually good stuff!

### ⭐⭐⭐⭐⭐ Easy to apply
*by R***A on 26 October 2025*

Easy to apply to shed roof using a roller on an extension pole.it will be tested over winter

### ⭐⭐⭐⭐ Possibly not going to last 10 years but!
*by K***Y on 9 November 2024*

I've used this product before, both on a garage roof and a flat roof extension. It's quick and easy to apply and it works. In my experience it's been good for a couple of years (but I guess a lot depends on the condition of your flat roof before application). If they called it "Thompsons 2 year roof seal" I'd give 5 stars. Nonetheless, a good product! 👍

## Frequently Bought Together

- Thompsons 10 Year Roof Seal Grey 4L
- Faithfull Tar Brush Short Handle FAIBRTARSH

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-04*