---
product_id: 268294851
title: "RONSEAL OCDSW250 250 ml One Coat Damp Seal - White"
brand: "ronseal"
price: "₪181"
currency: ILS
in_stock: true
reviews_count: 5
category: "Ronseal"
url: https://www.desertcart.co.il/products/268294851-ronseal-ocdsw250-250-ml-one-coat-damp-seal-white
store_origin: IL
region: Israel
---

# Paint or wallpaper over after 4 hours Seals damp on damp walls Touch dry in 2 hours RONSEAL OCDSW250 250 ml One Coat Damp Seal - White

**Brand:** ronseal
**Price:** ₪181
**Availability:** ✅ In Stock

## Summary

> 💧 Seal the damp, save your walls, and stay ahead of the moisture game!

## Quick Answers

- **What is this?** RONSEAL OCDSW250 250 ml One Coat Damp Seal - White by ronseal
- **How much does it cost?** ₪181 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/268294851-ronseal-ocdsw250-250-ml-one-coat-damp-seal-white)

## 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

- • **One Coat Magic:** Permanently blocks damp stains with just one application
- • **Breathable Seal:** Allows trapped moisture to escape, preventing further damage
- • **Fast-Dry Efficiency:** Touch dry in 2 hours, ready for painting or wallpapering in 4
- • **Damp-Friendly Formula:** Apply directly onto damp walls—no need to wait for full dryness
- • **Versatile Compatibility:** Works on bare or painted indoor walls and ceilings

## Overview

Ronseal OCDSW250 One Coat Damp Seal is a 250ml silicone-based protective coating designed to permanently block damp stains on indoor walls and ceilings. Its unique formula allows application on damp surfaces, dries quickly within 2 hours, and can be painted or wallpapered over after 4 hours, ensuring a breathable seal that prevents further moisture damage.

## Description

Product Description The Ronseal One Coat Damp Seal permanently blocks damp stains on walls and ceilings. You can even put it onto damp walls. It lets trapped moisture escape without causing anymore damage. When it's dry you can paint or wallpaper over it. BEFORE YOU START Make sure the cause of damp has been fixed. Open your doors and windows for ventilation and put down dustsheets to protect anything you don't want to get paint on. Preparation: Remove any wallpaper with a scraper and sand off any loose or flaking paint. Make sure the area you are painting is clean, if you've got mould, get rid of it with our 3in1 Mould Killer. You can paint onto damp surfaces, just make sure they're not dripping wet. USING YOUR DAMP SEAL Give the paint a really good stir, then use a roller or brush to put it on. If you're covering a small damp patch, make sure you are painting at least 30cm around the area. It'll be touch dry in 2 hours. After 4 hours it'll be ready to paint or wallpaper over. If the area is prone to mould, you can paint over it with our 6 Year Anti-Mould Paint. Usage Areas: All indoor walls and ceilings. Compatibility: Bare or previously painted walls and ceilings. Clean Up: Clean all brushes or rollers in warm, soapy water. Coverage: 5m² Per Litre. Set Contains: 1 x Ronseal One Coat Damp Seal White 250ml

Review: I was pleasantly surprised as l wasn't sure it would hide and seal the damp but it has. It smelt a little but not too badly. Went on my walls easily and looks really good. I would certainly recommend this item
Review: This was a great paint worked really well on a few little damp patches that had been on ceiling for a while , however not enough to d whole ceiling, would work out expensive

## Features

- Ronseal RSLOCDSW250 One Coat Damp Seal comes in the following
- You can even put it onto damp walls
- It lets trapped moisture escape without causing anymore damage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008VQ6RDY |
| ASIN  | B008VQ6RDY |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #46,651 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #45 in Waterproofers |
| Color | White |
| Coverage | 5m2/Litre |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,441) |
| Customer reviews | 4.4 4.4 out of 5 stars (3,441) |
| Date First Available | 13 May 2013 |
| Date First Available  | 13 May 2013 |
| Installation Method | Brush |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 318 g |
| Item model number | OCDSW250 |
| Item model number  | OCDSW250 |
| Manufacturer | Ronseal |
| Manufacturer  | Ronseal |
| Material | Silicone |
| Number Of Pieces | 1 |
| Part number | OCDSW250 |
| Product Dimensions | 7.4 x 7.6 x 7.6 cm; 318 g |
| Product Dimensions  | 7.4 x 7.6 x 7.6 cm; 318 g |
| Size | 250 ml |
| Special Features | Protects Paintwork |
| Style | Compact |
| Volume | 0.25 Liters |

## Product Details

- **Brand:** RONSEAL
- **Item dimensions L x W x H:** 7.4 x 7.6 x 7.6 centimeters
- **Item weight:** 0.32 Kilograms
- **Material:** Silicone
- **Style:** Compact

## Images

![RONSEAL OCDSW250 250 ml One Coat Damp Seal - White - Image 1](https://m.media-amazon.com/images/I/61Huqqsdr1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***A on 8 August 2025*

I was pleasantly surprised as l wasn't sure it would hide and seal the damp but it has. It smelt a little but not too badly. Went on my walls easily and looks really good. I would certainly recommend this item

### ⭐⭐⭐⭐ Review
*by D***. on 23 December 2023*

This was a great paint worked really well on a few little damp patches that had been on ceiling for a while , however not enough to d whole ceiling, would work out expensive

### ⭐⭐⭐⭐⭐ Review
*by F***F on 10 April 2024*

Delivery was good it was packed very well . I’ve only done one coat so far on a corner wall which my paint started flaking on . I scraped all the paint away first and washed away the small amount of mould with a bleach based spray and a mould remover to do extra . The wall was cold dame feeling when i applied it. It’s thicker than normal paint but applies really easy I used a brush . It’s great coverage . I have to do a second coat but in some places I applied it thick enough that it won’t need a second a coat. I’ve had to do quite a big space and the 2.5 litre looks like it’s plenty even after doing a second coat . The smell is a like lighter fluid , it’s not that strong but the room does need ventilation . Lucky for me it’s a very windy day today . Will update once it’s all dry and done for a few months . Now July and the wall is good so I’m glad I got this . I would say the weather has been good but summer is nowhere to be seen and the wall hasn’t flaked or peeled it’s still fresh. Will update again in winter . Now February 2025 and we have seen some terrible rainy weather in the last year and my wall has stayed perfect . No flaking, peeling or discolouration was definitely a good buy . Now July 2025 the wall is good no flaking peeling or damp coming back through . Just uploaded photos of the wall. I have done terrible DIY job as I have used the wrong colour white paint . Also I haven’t done a good job managing the drips down the wall which is all my fault not the damp paint or any paint . I have to repaint my whole room white to match but the damp paint has done a great job ! Update January 2026 The wall is still good , no flaking no damp coming back through it’s great . Behind my sofa and up the corner wall I had the worst flaking of paint and damp . And since using this paint it has not come back . The last photo with the green/red lights is the latest photo. I do keep a nice gap between the wall a sofa just to ensure airflow although it got damp before even with the gap.

## Frequently Bought Together

- Ronseal OCDSW250 250 ml One Coat Damp Seal - White
- Harris Essentials Walls & Ceilings Paint Brush Set | Pack of 5 | 0.5", 1", 1.5", 2", Grey
- RONSEAL AMPWM750 Anti Mould Paint White Matt 750ml

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-02-19*