Stain Blocker Paint | WHITE | 400ml | Damp Seal & Stain Blocking Spray Paint | Damp & Anti Mould Paint For Walls & Ceilings | Immediately Block Stains, Mould & Mildew

“Used this on a damp stain on the ceiling as a quick fix before getting the area properly repaired and painted. It blocked the stain well and gave good coverage in white, hiding the mark effectively. As with most stain blockers, it is a useful short-term solution rather than a permanent cure for the underlying damp issue, but it does what it says for keeping things looking presentable in the meantime. Application was straightforward and dried reasonably quickly. Good value as a stopgap product.”

Smells really strong Needs a few coats BUT does work!!! Good quality, quality seems thin but has worked maybe as it's waterproof

An excellent product to block out an unsightly water stain on my ceiling prior to repainting. Easy to use and instructions easy to follow. Keep area of use well ventilated. Overall, good value for money and certainly does the job.

I’ve tried all sorts of sprays and paint (including some well known brands) on the damp patches in my kitchen and guess what? Yep, after a few days the damp reappears. The damp stain is from an old leak in the kitchen, so in hope rather than expectation, I bought this spray. It was the only I haven’t tried after all! Well, it has been a revelation. Firstly, it is easy to use. The nozzle allows for precision spraying and even coverage. It does dry quickly, but I left it for a few days anyway. Allow for plenty of ventilation as this stuff stinks. It’s a small price to pay for the prevention of damp patches though. Secondly, paint over. As you can see from the photos it is pretty easy to paint over but you need two coats. It is now impossible to see where the damp patches were as a few quick coats of paint makes it blend in seamlessly with the rest of the wall. Just what I wanted after months of frustration. Time will tell whether it last in the long-term but I’m hopeful. Superb performance and easy to use, even for a DIY novice.

Below good

Great stuff. Covered a breakthrough of mold brilliantly 3 weeks ago. No sign yet of it coming back yet...... let's see.

This stain blocker works well. Quite strong smelling though so make sure the room you are spraying in is well ventilated while applying and for a good hour after.

Works well

Excellent produit qui tient ses promesses. J’ai appliqué au pinceau grossier sur 2 grattes pieds en fer forgé et 2 grands porte flammes très rouillés et après 2 passages, ils ont retrouvé leur belle teinte antique (non peint).

Por ahora el producto ha sido efectivo.

Très efficace pour éliminer les taches de moisissures.

This product is excellent . Good coverage on ceiling with water stain. Scent is strong as it kills mildew as well and works as a promaer. For small areas it may do the trick without topcoat but only time will tell. Waters stains had good coverage with one spray today. Tomorrow we shall see if more is needed. I recommend fast shipping by merchant!

Ich habe sas Spray in der Garage genutzt. Die Deckkraft ist super, aber ich hatte sas Auto weiter weg gestellt, da der Sprühnebel bei der offenen Garage nicht gerade wenig war. Die Langzeitwirkung wird zeigen ob das Spray seine Arbeit macht, aber im ersten Moment ist alles top abgedeckt und sehr weiß.