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🛡️ Seal the deal on damp & stains before your walls do!
Polar Damp & Stain Block Spray is a fast-drying, matt white aerosol that acts as both primer and sealer to block dampness, mould, and tough stains like grease and nicotine on interior walls and ceilings. Suitable for multiple surfaces including plaster, cement, stone, and brick, it covers 2-3m² per 500ml can and dries in just 10 minutes, providing long-lasting waterproof protection with low odour for hassle-free home maintenance.






| ASIN | B0953Q5YHG |
| Age Range Description | Adult |
| Best Sellers Rank | 1,401 in DIY & Tools ( See Top 100 in DIY & Tools ) 37 in Sealers |
| Brand | Polar Specialist Coatings |
| Brand Name | Polar Specialist Coatings |
| Colour | White |
| Colour Code | ffffff |
| Container Type | Tin |
| Country of Origin | China |
| Coverage | 500ml covers up to 2-3m² |
| Customer Reviews | 4.3 out of 5 stars 3,314 Reviews |
| Finish Type | Matte |
| Finish type | Matte |
| Full Cure Time | 1E+1 Minutes |
| Included Components | Spray |
| Indoor Outdoor Usage | Indoor |
| Is Waterproof | True |
| Item Form | Liquid |
| Item Volume | 500 Millilitres |
| Item Weight | 500 Grams |
| Item volume | 500 Millilitres |
| Manufacturer | Polar Specialist Coatings |
| Model Name | Polar Damp & Stain Block Spray Paint |
| Paint Type | Spray |
| Part Number | 1058 |
| Size | 500 ml (Pack of 1) |
| Special Features | Blocks Damp & Stains, Lasting Protection, Multi-Surface Use, Primer & Sealer, Rapid Drying |
| Special feature | Blocks Damp & Stains, Lasting Protection, Multi-Surface Use, Primer & Sealer, Rapid Drying |
| Specific Uses For Product | Interior |
| Surface Recommendation | Brick, Cement, Stone, Wood |
| Unit Count | 500.0 millilitre |
| Water Resistance Level | Waterproof |
J**J
Successful Application
Pleased with this product, used it a number of years ago with success and required it again. I had a very small localised damp spot in the corner of my room from an apparent unknown source. I purchased the “spray paint” type of applicator as opposed to the paint out of ease. Albeit, the smell from this is very very strong, no children or pets should be close, keep the windows open and plan the leave the room instantly, it’s incredibly strong. In addition, dependent upon your type of patch, the paint may be more ideal, as naturally the spray travels, arguably in my case the paint may have been more ideal as I had to mask off the area to prevent over application on other areas. However, all that technical aside, it works, I’ve attached a before and after. It goes on thick white, and is easily painted over. I also sprayed over filler I had put on in the area and it went over that fine and caused no issues. I managed to paint over again in two coats of Dulux Polished Pebble which is naturally light and still not shown through. Been on for about a year now, and no penetration, albeit there has been plaster cracking but that’s no discredit to the product as it’s a result of the damp area, I plan on to re fill the area again and should be fine after that. Would and will use again.
P**Y
A Lifesaver for My Home!
As someone living in the UK, I recently tried out the Polar Damp & Stain Block Spray - Matt White, and it has been an absolute lifesaver for my home. I used it to tackle dampness and stains in various areas, and it truly delivered outstanding results. The thing I really liked about this spray is its ease of use. It comes in a convenient 500ml bottle, which was perfect for my needs. The spray nozzle provided a smooth and even application, making it effortless to cover the affected areas. Plus, the matt white finish seamlessly blended with the surrounding surfaces, giving them a refreshed look. However, there was one thing I wasn't particularly fond of. While the spray effectively blocked dampness and stains, it did have a slightly strong smell. Although it dissipated after a while, it would have been nicer if the scent was milder. Overall, I highly recommend the Polar Damp & Stain Block Spray for anyone dealing with dampness and stains in their homes. It's a fantastic solution that gets the job done efficiently. The convenience of the spray bottle and the seamless finish it provides make it worth the purchase. Just be prepared for a temporary strong smell during application.
N**T
Simple, effective, and great for small problem areas
Used the Polar Damp & Stain Block Spray to cover a few small marks (damp and general mystery stains), and it’s worked well so far. It’s very easy to apply — quick spray, decent coverage, and no complicated prep beyond the obvious cleaning. It’s ideal for smaller spot areas rather than whole walls, and it blends in nicely once dry. It covers effectively without needing loads of layers, and doesn’t feel like you’re emptying the can just to deal with one patch. If you’ve got small stains from damp, mould, nicotine or similar and want a quick fix without breaking out full paint tins and rollers, this does the job. Five stars. Handy little problem-solver for targeted areas.
A**R
Excellent product
Covers well, easy to use
L**E
Stain block
Wasn't much understanding spray . Needs to be a larger container
R**N
Very effective on small area
This is a good damp proof and mould proof paint, and when concentrated on a small area per can, say 6ft sq., is very effective. But remember to: a) shake v well to make sure it comes out thickly, b) wear an ffp2 mask and disposable poncho with elasticated sleeves, vinyl gloves, and perhaps a face shield, especially if spraying overhead! It spreads a fine coating all over the vicinity!
M**L
Damp and stain blocker
Really good value for money, it's easy coverage, quick drying, just make sure to keep the area well ventilated once youve sprayed as its very strong smelling, but worth it, good coverage and more importantly does the job its intended for, no more damp.
N**.
Change in packaging/colour???
Edit: Seller has provided a full refund for my order without any prompts as the product did not work. Great customer service. I've bought this product multiple times before and absolutely loved it. It sprays easily, and covered the walls, and seamless blended in with the paint. You couldn't spot where I used it. Smells a little, but open windows and it goes away quickly. But in my recent purchase of 2 bottles, I noticed the packaging has changed. The spray now leaves a dark mark on the walls and the area I spray on does not blend with my paint. It looks awful, and now I've to buy more paint to cover the patches. I dont know if I got a bad batch or if there's a change in formula, but it does not work anymore. Very disappointed!!
G**L
Geht gut
Zum ausbessern
T**S
Super Produkt
Super Produkt. Deckt super Einfache Anwendung. Günstiger als die Marken Produkte und erfüllt seinen zweck. Leider war eine Dose bei mir kaputt aber , alles geregelt bekommen und top funktioniert. Top Hersteller Firma
M**R
Funktioniert super
Zuerst war ich skeptisch, aber das hatte sich sofort erledigt. Brauchte diese Farbe um in einem Altbau im Badezimmer ein Rohr zu verschönern, es war fleckig, grau schwarz und ließ sich nicht abdecken.. mit diesem Spray war das kein Problem. In 5 Minuten war das Rohr weiß !! Zu Beginn hat es zwar kurz nach Lösungsmittel gerochen, das war aber ebenfalls nach ein paar Minuten komplett weg. Würde diese Farbe jederzeit wieder kaufen.
E**.
Super, aber stinkt
Wegen starkem Geruch 1 Punkt Abzug , ansonsten perfekt, blockiert effektiv die Feuchtigkeit
F**.
Fleckenspray
Das Spray wurde pünktlich und korrekt geliefert. Einfach in der Handhabung und Flecken waren direkt abgedeckt, allerdings vorher bitte die Stellen die bearbeitet werden sollen/wollen abdecken ringsherum. Nach der Verarbeitung gut lüften! Gutes Preis/Leistungsverhältnis
Trustpilot
2 weeks ago
3 weeks ago