Ronseal One Coat Damp Seal - White

Permanently solve the issue of unsightly damp stains with Ronseal One Coat Damp Seal White 250ml. ...

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B&Q - Ronseal One Coat Damp Seal White 250MlPermanent Damp Stain Block For Walls And Ceilings
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£11.95
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Product Information

Full details

This guide is for homeowners and DIY enthusiasts dealing with unsightly damp stains on interior walls and ceilings. The Ronseal One Coat Damp Seal provides a permanent solution by actively blocking and sealing these stains, preventing them from showing through new paint or wallpaper. A key benefit is its ability to be applied directly to damp surfaces, saving time. However, it is crucial to ensure surfaces are not actively dripping wet before application.

All features

ColourWhite
Model Part NumberDS345
BrandRonseal

Extended Product Information

FAQs

Can I use this on exterior walls?

No, Ronseal One Coat Damp Seal is specifically designed for interior walls and ceilings only.

What is the drying time before I can paint?

The product is ready to be over-painted or wallpapered after 4 hours.

Can I apply this to a wet wall?

Yes, it can be applied to damp surfaces, but not to surfaces that are actively dripping wet.

Will this kill mould?

No, this product seals existing stains. For active mould growth, you should clean the area thoroughly with a mould remover first.

How do I clean my tools after use?

Clean application tools immediately after use with water.

What size area can the 250ml tin cover?

The 250ml tin is designed for small, targeted areas of dampness. Coverage will vary depending on the porosity of the surface and the extent of the staining.

Can I paint over this with any type of paint?

It can be over-painted with standard water-based emulsion paints. For solvent-based paints, allow 24 hours drying time. It is also compatible with wallpaper.

Troubleshooting

Stain is still visible after application.

Ensure a thorough and even coat was applied. If the stain is very deep or extensive, a second coat may be required, ensuring the first coat is dry before applying the second.

Paint or wallpaper is not adhering to the sealed surface.

Verify that the Damp Seal was fully dry (at least 4 hours) before applying the topcoat. Ensure the surface was clean and free from dust before application of the topcoat.

Product is too thick to apply.

Stir the product thoroughly. It is not designed to be thinned.

Pros and Cons

Pros

  • Permanently seals damp and mould stains.
  • Saves time with direct application to damp surfaces.
  • Breathable formula prevents future damage.
  • Quick drying allows for faster project completion.
  • Suitable for various interior surfaces.

Cons

  • Cannot be applied to actively dripping wet surfaces.
  • 250ml tin is best suited for small areas only.
  • Requires a suitable topcoat for full aesthetic finish.
  • Does not inherently prevent mould growth, only seals existing stains.

Setup, Compatibility & Care Instructions

Preparation

  1. Ensure the surface is free from loose paint, dirt, and grime. Remove any visible mould with a suitable cleaner and allow to dry.
  2. The surface should be damp but not actively dripping wet.

Application

  1. Stir the product thoroughly before use.
  2. Apply one coat directly to the stain using a brush or roller.
  3. Allow the product to dry for at least 4 hours.

Compatibility

  • Suitable for use on interior walls and ceilings.
  • Can be over-painted with standard water-based emulsion paints.
  • Can be over-painted with solvent-based paints (allow 24 hours drying).
  • Compatible with wallpapering after drying.
  • For areas prone to mould, such as bathrooms and kitchens, consider over-painting with an anti-mould paint for maximum protection.

Care

  • Clean application tools immediately after use with water.
  • Store the product in a cool, dry place, away from direct sunlight and frost. Keep the lid tightly closed.

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