---
product_id: 50254794
title: "Ronseal HPRSBL4L Thompsons High Performance Roof Seal Black 4 Litre"
brand: "ronseal"
price: "€ 182.72"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/50254794-ronseal-hprsbl4l-thompsons-high-performance-roof-seal-black-4-litre
store_origin: SK
region: Slovakia
---

# Vapour permeable membrane UV-resistant iron oxide pigments 10-year flexible protection Ronseal HPRSBL4L Thompsons High Performance Roof Seal Black 4 Litre

**Brand:** ronseal
**Price:** € 182.72
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it, shield it, forget it – 10 years of roof confidence!

## Quick Answers

- **What is this?** Ronseal HPRSBL4L Thompsons High Performance Roof Seal Black 4 Litre by ronseal
- **How much does it cost?** € 182.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/50254794-ronseal-hprsbl4l-thompsons-high-performance-roof-seal-black-4-litre)

## 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

- • **Breathable Seal:** Allows trapped moisture to escape, preventing damage while keeping your roof fully weatherproof.
- • **Resealable & Ready:** Comes in a compact, resealable tin ensuring your sealant stays fresh and ready for future touch-ups.
- • **Generous 4L Coverage:** Ample volume for large repairs or full roof resealing, minimizing trips to the store and maximizing efficiency.
- • **UV Shield Technology:** Iron oxide pigments create a robust barrier against harsh UV rays, maintaining performance under extreme sunlight.
- • **Decade-Long Durability:** Engineered to flex with your roof, preventing cracks and splits for 10 years of worry-free protection.

## Overview

Ronseal Thompsons High Performance Roof Seal Black 4 Litre is a premium, flexible roof coating designed to protect and repair roofing surfaces with a durable, UV-resistant membrane that lasts 10 years. Its vapour permeable formula prevents cracking and allows moisture escape, ensuring long-term weatherproofing under extreme conditions. Supplied in a resealable 4L tin, it’s perfect for large-scale roof maintenance or repairs.

## Description

Ronseal HPRSBL4L Thompsons High Performance Roof Seal Black 4 Litre

## Features

- The Thompsons RSLHPRSBL4L Roof Seal Black comes in the following:
- The 10 year formulation is designed to flex with the natural movement of the roof protecting the membrane from cracking and splitting over time
- UV light stable iron oxide pigments provide a protective shield against harmful UV radiation ensuring 10 year weatherproofing performance under extreme conditions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Ronseal |
| Part Number | RSLHPRSBL4L |
| Product Dimensions | 18 x 18 x 19 cm; 4 kg |
| Item model number | RSLHPRSBL4L |
| Size | 4L |
| Colour | Black |
| Style | Compact |
| Material | Iron Oxide |
| Volume | 4 Litres |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 4 kg |

## Product Details

- **Material:** Iron Oxide
- **Brand:** Ronseal
- **Style:** Compact
- **Item weight:** 4 Kilograms
- **Item dimensions L x W x H:** 18 x 18 x 19 centimetres

## Images

![Ronseal HPRSBL4L Thompsons High Performance Roof Seal Black 4 Litre - Image 1](https://m.media-amazon.com/images/I/61PyaR2LixL.jpg)

## Questions & Answers

**Q: Hi - Can this product be applied direct to wood?**
A: Applied just like paint, nothing on the tin that says it cannot be applied directly to wood. I stopped a leak on my roof wEr by the productextension 2yrs ago, so I would s

**Q: any idea on approximate coverage? Just need an good guesstimate so I know how many to order. Thanks**
A: I would agree with the previous answer from Brownie as to coverage for a single coat, and would recommend giving  more than one coat. make sure the surface being painted is dry, and that rain is not forecast for the period while the paint will still be wet.

**Q: whats the best type of brush to use for a felr roof?**
A: It's consistency is quite thin so a brush of any sort and size - the bigger the area, the larger the brush.The dormer I did was approx. 30 square metres, so I used a roller.

**Q: Does it come in white**
A: No, it actually goes black

## Frequently Bought Together

- Ronseal HPRSBL4L Thompsons High Performance Roof Seal Black 4 Litre
- ProDec 4 inch Flat Masonry Paint Brush for Rapid Application of Smooth and Textured Masonry Paints on Outdoor Walls, Brick, Breeze Block, Render, Pebbledash and Other Rough Surfaces, 4" 100mm

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**Shop now:** [https://www.desertcart.sk/products/50254794-ronseal-hprsbl4l-thompsons-high-performance-roof-seal-black-4-litre](https://www.desertcart.sk/products/50254794-ronseal-hprsbl4l-thompsons-high-performance-roof-seal-black-4-litre)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-21*