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PermaSEAL Damp Proof Paint 5L Reviews

4.8 Rating 45 Reviews
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Damp Proof Membrane Paint
PermaSEAL Damp Proof Paint is a high performance liquid damp proof membrane. All you need to do is brush or roller it on to a sound masonry surface to create a damp proof and vapour proof layer.

Forms a flexible membrane that stops water & vapour coming through, reducing the chances of damp forming 
Blocks penetrating damp on interior walls and ceilings in two coats
Highly effective damp proof paint for internal walls that can be applied to damp surfaces 
Can be painted over with standard emulsions or wallpapered over when dry 

This high quality professional product can be used as a general damp proof paint for walls and ceilings as well as a highly effective damp proof membrane (DPM) for floors. 
With a consistency similar to thick emulsion paint, it is available in two colours:

white damp proof paint
black damp proof paint

Benefits of PermaSEAL Damp Proof Paint
PermaSEAL damp proof paint is a highly adaptable and powerful multi-purpose product. It is:

Fast-drying
Ready to use straight from the bucket
Fully waterproof
Solvent-free 
Professional product
Dries to a semi-gloss finish
Stops damp and vapour damaging decorations
UV resistant

Damp Proof Paint Uses
PermaSEAL damp proof paint is a multi-purpose high performance product. It can fulfil a range of purposes, including:

A general interior damp proof paint for multiple surfaces including render, plaster, brickwork. Suitable for both walls and ceilings.
Floors: a damp proof floor paint that can be applied above and below screeds to provide a damp proof membrane. It needs to have a further coating to protect it from damage.
Walls: a damp proof wall paint that can be used under a render as a waterproof layer.
Externally: below ground as a primary waterproofing membrane behind a cavity drain membrane (Speak to our technical advisors).
Tiling: under tiled areas as a secondary protection for wet areas such as bathrooms.
Bunds, silage and sewage tanks: protects concrete from silage attack.
Gas Barrier: protection against methane and radon penetration.
Timber: joist ends can be waterproofed before installation into damp walls

Note: Speak to one of our technical advisers if you are considering using this product in a basement as there are risks involved.  For areas of water ingress under hydrostatic pressure we suggest Permaseal Tanking as a waterproof barrier.
How to Use Damp Proof Paint
Preparation
Make sure that all surfaces are sound, free of loose material, dust, oil, grease, rubber marks etc. PermaSEAL Damp Proof Paint should not be applied over any previous coatings like emulsion paints and bitumen as these can stop it working or bonding effectively. 
When using as a damp proof paint, ensure that any masonry / brickwork is flush and pointed. All defects in existing surfaces should be made good. Ideally, you want a smooth surface with a trowelled or brushed finish. 
When using as a liquid DPM make sure the substrate is load-bearing, and that any laitance is removed mechanically (common on new concrete floors/screeds). Speak with a technical adviser if unsure.
How to apply Damp Proof Paint
Before applying the damp proof paint, stir the contents of the bucket well. The damp proof paint is now ready to be applied by brush or roller. It’s that simple. Follow decorating best practice.
When using as a damp proof wall paint for treating internal walls, the best method is a sandwich system. This is where you chip off the render and then apply the damp proof paint before applying new plaster. 
We recommend two coats are applied for all purposes. All subsequent coats should be applied at right angles to the previous coat. 
Before applying a second coat, allow the first coat to become touch dry. This is typically within one hour. The second coat should be applied within 24 hours of applying the first coat. Once the second coat is dry, you can paint over it, or apply further decoration such as wallpaper.   
How much Damp Proof Paint do I need?
To achieve a damp proof barrier, PermaSEAL Damp Proof Paint must be applied as specified and not stretched to cover larger areas. It has a coverage rate of 1 litre/m² when applied in two coats each of 0.5 litres /m². For more details click on the FAQ tab. 
You can read reviews in the review tab, highlighting why PermaSEAL is the best damp proof paint on the market.
PermaSEAL - Complete solutions. Made possible.
PermaSEAL damp proof paint is part of our complete PermaSEAL range of damp proofing products where quality, value and technical excellence come together. If you have questions around the way this powerful multi purpose product can be used, give our team a call. You can also read our FAQs in the tab where we cover some of your commonly asked damp proof paint questions.   
Related Content
Return to our Damp Proofing Products section to browse more items. Read our Guide to Internal Damp Proofing. If you still have questions then read our article on Does Damp Proof Paint Really Work? 

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Not been able to use it yet as the weather is too cold, Shame.
Helpful Report
Posted 1 year ago
Used on two areas, one stripped back to bare wall . Painted 2 coats with permaseal damp proof paint, when dry plastered over. As yet no sign of damp. Second area , painted plaster, dried out, sanded down then two coats permaseal paint. As yet no visible signs of damp returning. Perhaps early days yet but looks very promising
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Posted 1 year ago
Excellent product
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Posted 1 year ago
Excellent thanks
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Posted 1 year ago
Used on an area of wall below a dpc. So far so good and damp levels are now acceptable
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Posted 1 year ago
Thomas Philpot
Verified Reviewer
Top quality product, does what it says on the tin.
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Posted 1 year ago
Heather Jackson
Verified Reviewer
Great paint.Goes on well.Painted all my cielings with it.This is my third tub.Will definitely use it again.Great for damp as well.Used it on all the corners of my walls and in the bathroom Thankyou mrs h Jackson
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Posted 1 year ago
Great product, gets the job done and no issues so far after using three 5 litre tubs of the stuff
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Posted 1 year ago