Pro-Kleen Damp & Stain Block Spray Paint Primer White Matt 400ml - Covers Damp, Mould, Grease, Nicotine & Rust Stains - for Walls & Ceilings - Leaves a Waterproof Barrier

I had a water stain in my ceiling caused by loosely fitted pipes in the water boiler in my ceiling. It caused a horrible looking stain and of course ordinary paint wasn’t going to shift or cover the stain. A builder suggested a stain cover and I just chose this product for price and quality. Did the job and I’m so proud of myself. Job done! I recommend for quick results! Just means I can repaint the ceiling now and the stain will be covered! Sorted!

This product is fantastic for covering up marks on ceilings. Very easy to use. The only downside is that it says it is low odour. The smell is so strong after 4 days I can still smell it.

Brilliant product - completely covered the stains on my kitchen wall before re painting

This is so good I didn't need to paint over the top, it covers any damp patches and marks and blends in well with white paintwork. Highly recommend.

Worked really well, had a strong smell to it which lasts a few hours but other than that its a good product would buy again

Covered a large area on ceiling from water leak . I would use a sheet to cover where spraying to avoid any drips . But covered area and easy to use

Unlike other reviewers, I waited until I'd painted over it before I left a review. It looked kind of ok before being painted over, but it could have done with more coats, but the product ran out too quickly. This could be my own fault. I could have done a thinner layer, so if you've bought this item then I recommend doing thin coats and hoping that works better than the one thicker coat I managed to get before it ran out. Because, when I painted over it, it did nothing to stop the stain coming through. I covered about a quarter of the ceiling in a 2.5m by 3m bedroom, but I could have done a thinner coat and maybe got a second coat. Perhaps that would have done the job, but I'm not convinced it would have.

It does what is says on the tin. Very effective.Make sure you ventilate well to disperse fumes.Excellent value for money.Easy to spray but make sure not to get it too close to the item being sprayed.