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Ronseal One Coat Damp Seal 2.5L Protects Walls & Ceilings 2.5 kg

Manufactured by Ronseal

Why Choose Our Products?

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Blocks prepared damp stains before decoration

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One coat on suitable interior walls and ceilings

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Paintable or wallpaperable after 4 hours

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The underlying moisture source must be fixed

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Ronseal One Coat Damp Seal blocks prepared damp stains on interior walls and ceilings before repainting or wallpapering. It is a stain sealer, not a decorative topcoat and not a repair for the cause of damp.

Preparation and use

Find and fix the source of moisture first. Remove loose paint or wallpaper and treat any mould with a suitable mould killer. The surface may be damp, but not dripping wet. Stir thoroughly and apply one coat by brush or roller; for a small patch, extend the application approximately 30cm beyond the affected area.

  • Pack size: 2.5L; white matt.
  • Coverage: up to 5m² per litre (up to 12.5m² per tin).
  • Touch dry: 1–2 hours; paint or wallpaper over after 4 hours, allowing longer in poor drying conditions.
  • Clean brushes and rollers with white spirit.

Safety: This is a flammable, high-VOC product. Ventilate the area, keep away from ignition sources and follow the label and safety data sheet. See Ronseal's instructions for full application guidance.

Fix the cause of damp and remove loose material. Treat existing mould with a suitable mould killer. Stir and apply one coat to the prepared interior wall or ceiling by brush or roller; the surface can be damp but must not be dripping wet. Paint or wallpaper over after 4 hours. Ventilate, avoid ignition sources and clean tools with white spirit.

PropertyValue
UseInterior damp-stain sealer
Pack2.5L
CoverageUp to 5m²/L
CoatsOne
Touch dry1–2 hours
Paint overAfter 4 hours
ToolsBrush or roller; clean with white spirit
SafetyFlammable; high VOC; follow SDS

DATA SHEETS AND PRODUCT FILES

Below are all the product files available for this coating. If you require any further information on this product, please email us at support@tradesuppliesuk.co.uk and one of our team will be happy to help.

FILES AND DATA SHEETS

No files available for this product.

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Frequently Asked Questions

Does it cure damp?
No. Repair the moisture source first.
Can I apply it to a damp wall?
Yes, if not dripping wet.
Does it remove mould?
No. Treat visible mould before use.
Is it a finish?
No. Paint or wallpaper over after 4 hours.
How much does 2.5L cover?
Up to 12.5m² depending on the surface.

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Regular price £39.99 (inc VAT)
Tax included Shipping calculated at checkout.
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