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Damp Proof Paint

An effective waterproofing paint and liquid dpm for use on walls and floors. Helps prevent water-ingress and the spread of penetrating damp. Ready to use. Quick drying. Solvent free.

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Product Description

If you are having issues with damp walls or ceilings in parts of your home, its important not to leave it, as it is likely to only get worse over time. Smartseal Damp Proof Paint has been extensively tested to guarantee high performance, and to help prevent dampness on walls and ceilings appearing again. The damp proof paint is suitable for internal and external use. The liquid dpm can quickly stop water ingress on walls and help prevent the spread of penetrating damp.

Smartseal Damp Proof Paint is a ready-to-use, liquid damp-proofing paint which can help to protect against water ingress on porous substrates, such as concrete brickwork and render. It is specially formulated for for use as part of a below ground-level waterproofing systems. 

The damp proof paint provides a seamless, waterproof, radon barrier under plaster or renders. It can also be applied to pond linings to act as a waterproof barrier, and will help to protect against water ingress in areas with constant water contact, such as under tiles in bathrooms and kitchens, as well as food processing areas and balconies. Furthermore, it also forms a barrier to protect against harmful methane and carbon dioxide gases. 


  • Ready to apply and easy to use
  • An effective damp proof paint
  • A liquid dpm that stops penetrating damp
  • Prevents water ingress on porous surfaces
  • For use on concrete, brick and most types of renders
  • Acts as a vapour barrier
  • Non-toxic, solvent free formulation
  • Dry to touch in around an hour
  • Multiple colour options
  • Can be over-painted if required
  • Can be applied to damp substrates
  • Can be plastered or boarded over
  • Highly flexible with good crack bridging properties


  • Wet rooms, showers & bathrooms
  • Liquid tanking membrane in cellars & basements
  • Pond & water tank lining
  • Acid-resistant silage paint
  • Liquid applied radon gas barrier membrane

If you are beginning to see the signs of damp on walls and ceilings around your home, you can prevent it getting any worse by treating with our damp proof paint.


Product Description: Liquid Damp-proof Membrane

Sizes available:  5L & 10L plastic buckets with handles


Method of Application: Brush or Roller

Typical Coverage: 4sq metre per litre. 2 coat application.

Storage: Store in the sealed container, in temperatures between 5C and 30 C . Protect from frost and direct sunlight 

Shelf Life: 12 months in unopened packaging

Product FAQs

Q: Can I use this to paint the bare wall of my garage and use it as a standalone finish?

Jai N

A: The Damp Proof paint can be applied to a bare wall as a stand alone finish.

Response from Nigel

Q: Can this be top coated with epoxy paint?


A: We would suggest not overcoating the damp proof paint with a epoxy paint. it might not adhere correctly.

Response from Nick

Q: Can it be applied to an external wall that has already been painted? Also can the external walls be painted over once they have painted withe damp proof paint?


A: It can be applied on top of a previous paint, but it's damp proofing effect could be hindered. This would be the same for if you painted on top of it.

Response from Jacob
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We provide a national delivery service for our block paving sealer, pattern imprinted concrete sealer, roof coatings and tarmac restorer on a standard 2 - 4 working day basis. Dependent on weight, this is normally done by pallet or parcel carrier.

If you need products delivered quicker, for a small additional charge, orders placed before 1.30pm can be delivered within 1 - 2 working days to most parts of the UK, although this is dependent on the courier service in your area and the product/s ordered. If you require this service, please check on area availability by calling 01268 722500.

Our commitment is to supply all orders as placed and we offer a comprehensive guarantee of quality. Providing a reliable delivery service to all our customers is most important to us and this is backed up by the many satisfied customer testimonials we have received over the years.

If you need an order delivered to a different address, left somewhere at your property without a signature or left with a neighbour, just let us know.

We also try to maintain 100% stocking levels of our products at all times, so an immediate despatch is virtually guaranteed.

Our product returns policy can be viewed by visiting our Terms and Conditions section.

*Free delivery on orders over £75 are subject to the delivery address location.

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