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One Coat Damp Seal

The Ronseal One Coat Damp Seal permanently blocks damp stains on walls and ceilings. You can even put it onto damp walls. It lets trapped moisture escape without causing anymore damage. When it's dry you can paint or wallpaper over it.


Make sure the cause of damp has been fixed. Open your doors and windows for ventilation and put down dustsheets to protect anything you don't want to get paint on.

Preparation: Remove any wallpaper with a scraper and sand off any loose or flaking paint. Make sure the area you are painting is clean, if you've got mould, get rid of it with our 3-in-1 Mould Killer.

You can paint onto damp surfaces, just make sure they're not dripping wet.


Give the paint a really good stir, then use a roller or brush to put it on. If you're covering a small damp patch, make sure you are painting at least 30cm around the area.

It'll be touch dry in 2 hours. After 4 hours it'll be ready to paint or wallpaper over. If the area is prone to mould, you can paint over it with our 6 Year Anti-Mould Paint.

Usage Areas: All indoor walls and ceilings
Compatibility: Bare or previously painted walls and ceilings
Clean Up: Clean all brushes or rollers in warm, soapy water
Coverage: 5m² per litre

This Ronseal One Coat Damp Seal comes in the following:

Colour: White
Size: 250ml

Technical Specs

Colour: White
Size: 250ml

Price is for individual model shown.
RSLOCDSW250: £9.01
View ModelsThis product has various models available. All buy buttons, comparisons and prices are listed below. Scroll down or use the button to jump there.

Downloads & Certificates

Safety Data Sheet is Available

brandlogo Code: RSLOCDSW250
Stock: Will be despatched next working day

Box Content

1 x Ronseal One Coat Damp Seal White 250ml

Downloadable Files

Safety Data Sheet is Available

Other Products within the Group

Name Type Colour Size Application Price
One Coat Damp Seal White 250ml
RSLOCDSW250 Ronseal
Damp Seal White 250ml Paint £9.01
One Coat Damp Seal White 750ml
RSLOCDSW500 Ronseal
Damp Seal White 750ml Paint £19.14
One Coat Damp Seal White 2.5 litre
Damp Seal White 2.5 litre Paint £39.55

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