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🛡️ Seal the deal on damp & stains before your walls do!
Polar Damp & Stain Block Spray is a rapid-drying, matt white aerosol that seals and protects interior walls and ceilings from damp, mould, grease, nicotine, rust, and other stubborn stains. Covering 2-3m² per 500ml can, it works as both primer and sealer on multiple surfaces including plaster, cement, stone, and brick. Designed for indoor use, it dries in just 10 minutes with low odour, providing long-lasting waterproof protection and a flawless finish.






| ASIN | B0953Q5YHG |
| Age Range Description | Adult |
| Best Sellers Rank | 1,037 in DIY & Tools ( See Top 100 in DIY & Tools ) 32 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 3,329 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
J**R
Done the trick, jobs a good un !
Had a leak stain on a white textured wallpapered wall, I gave it 3 coats of the spray for good measure, done the trick, wear a mask or make sure room is well ventilated.
J**S
Does the job
Happy with this - bought it on a whim as I didn't want to have to crack out rollers or anything. We'd had a leak from the floor above and noticed a water stain a while after, on a white ceiling with a white wall, handily. Figured this might be better than the stain even if the colour didn't match. Instructions say 2-3 coats, I think the first coat made all the difference, and rapidly decreasing returns after that. But covered the stain nicely - still a tiny hint of it if you look, might be another coat or two is needed, or just a proper paint job, but this made a big difference with minimal effort. Photos are before/after - matt white matched perfectly.
G**N
Good
Was good but a the smell lasts a long time ,need a mask but does the job
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
C**M
Es stinkt, aber es funktioniert gut
Das Zeug stinkt leider und man sollte es mit Mundschutz bedienen und nicht einatmen.ABER es wird super weiss und bleibt dann auch weiss.Ich bin trotz allem hochzufrieden, da das Endergebnis stimmt.Deckenecken in der Dusche behandelt.Top!
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
G**L
Geht gut
Zum ausbessern
A**F
Polar.
Das Produkt erfüllt zunächst seinen Zweck sehr gut, zeigt jedoch leider schon nach spätestens drei Monaten deutliche Schwächen.
Trustpilot
3 days ago
1 month ago