---
product_id: 450171924
title: "Polycell One Coat Damp Seal 2.5L"
brand: "polycell"
price: "$326.30"
currency: USD
in_stock: true
reviews_count: 5
category: "Polycell"
url: https://www.desertcart.us/products/450171924-polycell-one-coat-damp-seal-2-5l
store_origin: US
region: United States of America
---

# Matt white finish, no extra coats Works on plaster, brick & concrete One-coat waterproof seal Polycell One Coat Damp Seal 2.5L

**Brand:** polycell
**Price:** $326.30
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it once, seal it right – damp doesn’t stand a chance!

## Quick Answers

- **What is this?** Polycell One Coat Damp Seal 2.5L by polycell
- **How much does it cost?** $326.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/450171924-polycell-one-coat-damp-seal-2-5l)

## Best For

- polycell enthusiasts

## Why This Product

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

## Key Features

- • **Mould-Free Living:** Effectively halts mould growth, protecting your home’s health and aesthetics.
- • **Instant Damp Defense:** Stops penetrating damp with just one coat, saving time and hassle.
- • **Seamless Matt Finish:** Achieve a clean, professional matt white look without multiple layers.
- • **Trusted Brand Quality:** Backed by AkzoNobel, ensuring durability and reliability you can count on.
- • **Versatile Surface Compatibility:** Perfectly seals plaster, brick, and concrete surfaces indoors.

## Overview

Polycell One Coat Damp Seal 2.5L is a high-performance waterproof sealant designed for interior walls and ceilings. It provides a one-coat matt white finish that effectively stops penetrating damp and mould on plaster, brick, and concrete surfaces, delivering professional results with minimal effort.

## Description

POLYCELL DAMP SEAL 2.5LTR.

Review: This one seal paint is absolutely fantastic! We kept getting patches of mould on the ceiling and wanted a better solution than just spraying mould spray. I put a coat on of this, then went over it with a second coat a few hours after the first had dried. It’s been about 5 weeks now easily and it’s not come back at all! It’s like paint mixed with glue so a smooth roller is needed (like for gloss). Also be super careful when using it, it marks whatever it touches so make sure to keep everything covered and have some thinners to hand. Also eye covering is an absolute must - I got a dried fleck of it stuck in my eye, luckily my eye went crackers and it self resolved - be careful with this stuff. Otherwise it dries quick and decent value for the size. It also does smell abit so good ventilation is needed I think or you’ll get abit of a headache. Would recommend to solve mould issues in the home everytime though.
Review: Not sure if it does the job as we in summer and 8 get damp patches in winter so may have to update the review when winter is upon us,very thin paint goes eveywere if not careful,when roller8ng it on wall make sure you cover floor as it does splatter as its very thin Why did you choose this product over others?: Name

## Features

- Seals patches of penetrating damp
- For interior walls and ceilings
- One coat matt white finish

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0030G203Q |
| ASIN  | B0030G203Q |
| Batteries Included? | No |
| Batteries Required? | No |
| Customer Reviews | 4.3 4.3 out of 5 stars (142) |
| Customer reviews | 4.3 4.3 out of 5 stars (142) |
| Date First Available | 7 August 2012 |
| Date First Available  | 7 August 2012 |
| Item Package Quantity | 1 |
| Item Weight | 4.4 Kilograms |
| Item model number | 5093044 |
| Item model number  | 5093044 |
| Manufacturer | AkzoNobel |
| Manufacturer  | AkzoNobel |
| Material | Polycell |
| Part number | 353821 |
| Product Dimensions | 39 x 30 x 450 cm; 4.4 kg |
| Product Dimensions  | 39 x 30 x 450 cm; 4.4 kg |
| Size | 2.5L |
| Style | Single |

## Product Details

- **Brand:** Polycell
- **Item dimensions L x W x H:** 39 x 30 x 450 centimeters
- **Item weight:** 4.4 Kilograms
- **Material:** Polycell
- **Style:** Single

## Images

![Polycell One Coat Damp Seal 2.5L - Image 1](https://m.media-amazon.com/images/I/71dBjmfCMGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by P***Y on 31 March 2025*

This one seal paint is absolutely fantastic! We kept getting patches of mould on the ceiling and wanted a better solution than just spraying mould spray. I put a coat on of this, then went over it with a second coat a few hours after the first had dried. It’s been about 5 weeks now easily and it’s not come back at all! It’s like paint mixed with glue so a smooth roller is needed (like for gloss). Also be super careful when using it, it marks whatever it touches so make sure to keep everything covered and have some thinners to hand. Also eye covering is an absolute must - I got a dried fleck of it stuck in my eye, luckily my eye went crackers and it self resolved - be careful with this stuff. Otherwise it dries quick and decent value for the size. It also does smell abit so good ventilation is needed I think or you’ll get abit of a headache. Would recommend to solve mould issues in the home everytime though.

### ⭐⭐⭐⭐⭐ Review
*by A***4 on 10 July 2025*

Not sure if it does the job as we in summer and 8 get damp patches in winter so may have to update the review when winter is upon us,very thin paint goes eveywere if not careful,when roller8ng it on wall make sure you cover floor as it does splatter as its very thin Why did you choose this product over others?: Name

### ⭐⭐⭐⭐⭐ Review
*by A***R on 15 August 2025*

Great price and a good coverage over my damp wall

## Frequently Bought Together

- Polycell One Coat Damp Seal 2.5L
- Harris Seriously Good Walls & Ceilings Twin Medium Pile Paint Roller Set with Tray & Frame | 9"
- Harris Essentials Walls & Ceilings Paint Brush Set | Pack of 5 | 0.5", 1", 1.5", 2", Grey

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-12*