1203 Waterproof Masonry Paint


We no longer stock this product, but can recommend Britannia Wallshield Eco as a great alternative.

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Product Description

We no longer stock this product, but can recommend Britannia Wallshield Eco as a great alternative.

A smooth, exterior decorative and protective wall coating which produces a hard wearing, long lasting finish that remains flexible to help prevent any cracking, flaking or peeling. It’s elasticity ensures the coating waterproofs the surface, stopping water entering but still allows the substrate to breathe.

Contains ceramic spheres developed for use in the space industry that help significantly improve the insulating properties of the wall. This not only helps reduce energy consumption and carbon emissions but also helps protect the environment.

• Eco-friendly smooth water based wall coating
• Decorative and protective
• Hard wearing, long lasting, flexible
• Elastic – waterproof and water vapour permeable
• Improves thermal performance

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Technical Data

Typical Coverage (per coat)3m² per litre
Touch Dry1 Hour
ApplicationBrush, Roller, Spray
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.


Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.


questions Ross Wood on 11/04/2017
Question: Can 1203 waterproof paint be sprayed onto my pebble dash wall,? do I have to apply a PVA coat first?
I live close to the sea will this product be ok ?
What type of spray would I have to use ?

1203 Waterproof Masonry Paint can be applied directly to your surface. Thin the first coat up to 10% with clean, cold water.

If you wish to spray apply (we wouldn't recommended for small areas you would be better brushing/rolling) then an airless spray machine must be used with a tip size of 18-23 thou is and pressure 150-200 bar.

questions Jen Keeling on 03/08/2016
Question: Can this be applied on top of a concrete rough cast render which has been previously painted with a weathershield paint and also treated with Thompson's waterseal (about two years ago) .
Answer: Thompson's WaterSeal is a clear, penetrative waterproofer so I presume this was applied before the Dulux Weathershield Masonry Paint was applied. Assuming this is correct then as long as the existing masonry paint is well adhered it can be cleaned down and 1203 Waterproof Masonry Paint can be applied directly in two coats. Thin the first coat with 10% clean, cold water and apply the second coat undiluted. You should achieve an average coverage rate of 2-3m² per litre/per coat on rough cast.

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